BSIG


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents


us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
us-gaap:SharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:ComprehensiveIncomeNetOfTax
us-gaap:ConsolidatedEntities
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:ConsolidationItems
us-gaap:SubsegmentsConsolidationItems
us-gaap:ConsolidatedEntities
us-gaap:GainLossOnInvestments
us-gaap:ConsolidatedEntities
us-gaap:GeneralAndAdministrativeExpense

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit
us-gaap:ConsolidationItems
us-gaap:StatementBusinessSegments
us-gaap:SubsegmentsConsolidationItems

us-gaap:IncomeTaxesPaid

us-gaap:InterestExpense
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:InterestIncomeExpenseNet
us-gaap:StatementBusinessSegments
us-gaap:SubsegmentsConsolidationItems

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:SubsegmentsConsolidationItems

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems
us-gaap:SubsegmentsConsolidationItems

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NonoperatingIncomeExpense

us-gaap:OperatingExpenses
us-gaap:ConsolidatedEntities

us-gaap:OperatingIncomeLoss

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:OtherIncome

us-gaap:ProfitLoss

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidatedEntities, us-gaap:ProductOrService
us-gaap:InvestmentType, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:StatementGeographical
us-gaap:ProductOrService, us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

us-gaap:Revenues
us-gaap:ConsolidatedEntities
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:SubsegmentsConsolidationItems

us-gaap:Assets
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:Liabilities
us-gaap:ConsolidatedEntities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:ConsolidatedEntities
us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:ConsolidatedEntities
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:ConsolidatedEntities, us-gaap:PropertyPlantAndEquipmentByType
us-gaap:ConsolidatedEntities
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:PropertyPlantAndEquipmentNet

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:Goodwill
us-gaap:ConsolidatedEntities
us-gaap:StatementBusinessSegments
us-gaap:ConsolidatedEntities
us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OperatingLeaseRightOfUseAsset
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:EquitySecuritiesFvNi
us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:ConsolidatedEntities
us-gaap:OtherAssets
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:LongTermDebt
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType
us-gaap:ConsolidatedEntities
us-gaap:MinorityInterest

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability
us-gaap:ConsolidatedEntities

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:AdditionalPaidInCapital
us-gaap:ConsolidatedEntities
us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:ConsolidatedEntities
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:ConsolidatedEntities
us-gaap:MinorityInterest

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
us-gaap:ConsolidatedEntities
us-gaap:AmortizationOfFinancingCosts
us-gaap:ConsolidatedEntities
us-gaap:DeferredIncomeTaxExpenseBenefit
us-gaap:ConsolidatedEntities
us-gaap:DepreciationDepletionAndAmortization

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:SubsegmentsConsolidationItems

us-gaap:ProfitLoss

us-gaap:NetCashProvidedByUsedInInvestingActivities
us-gaap:ConsolidatedEntities
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment
us-gaap:ConsolidatedEntities
us-gaap:PaymentsToAcquireInvestments

us-gaap:NetCashProvidedByUsedInFinancingActivities
us-gaap:ConsolidatedEntities
us-gaap:ProceedsFromIssuanceOfLongTermDebt
us-gaap:ConsolidatedEntities
us-gaap:RepaymentsOfLongTermDebt
us-gaap:ConsolidatedEntities
us-gaap:PaymentsOfDividends

us-gaap:Dividends
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:UnrecognizedTaxBenefits

bsig:AdjustmentsToAdditionalPaidInCapitalInPermanentAndTemporaryEquitiesSharebasedCompensationRequisiteServicePeriodRecognitionValue

bsig:AffiliateKeyEmployeeDistributions
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:ConsolidatedEntities
bsig:AmortizationAndRevaluationOfNonCashCompensationAwards
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
bsig:AmortizationOfIntangibleAssetsIncludingDiscontinuedOperations

bsig:CapitalContributionsRedemptions
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

bsig:CapitalContributionsRedemptionsinPermanentandTemporaryEquities

bsig:DisposalGroupIncludingDiscontinuedOperationAmortizationAndImpairmentOfIntangibleAssets

bsig:DisposalGroupIncludingDiscontinuedOperationCompensationAndBenefits
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:DisposalGroupIncludingDiscontinuedOperationDepreciation

bsig:DisposalGroupIncludingDiscontinuedOperationGainLossOnInvestment
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:DistributionsFromDiscontinuedOperations

bsig:DividendsRedemptionsInPermanentAndTemporaryEquities

bsig:ENIOperatingExpenses
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:SubsegmentsConsolidationItems

bsig:EarningsAfterKeyEmployeeDistributions
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:SubsegmentsConsolidationItems

bsig:EarningsBeforeVariableCompensation
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:SubsegmentsConsolidationItems
us-gaap:DisposalGroupClassification, us-gaap:FiniteLivedIntangibleAssetsByMajorClass, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
bsig:FiniteLivedIntangibleAssetsGrossWrittenOffRelatedToSaleOfBusinessUnit
us-gaap:ConsolidatedEntities
bsig:IncomeLossFromEquityAccountedInvestmentInAffiliate
us-gaap:ConsolidatedEntities
bsig:IncreaseDecreaseInAccountsPayableAndAccrualsAndAccruedIncomeTaxes
us-gaap:ConsolidatedEntities
bsig:IncreaseDecreaseInOtherReceivablesPrepaymentsDepositsAndOtherAssets
us-gaap:ConsolidatedEntities
bsig:IncreaseDecreaseInReceivablesOtherAssets
us-gaap:ConsolidatedEntities
bsig:IncreaseDecreaseinAccruedIncentiveCompensationOtherAmountsDuetoRelatedPartiesandOtherLongTermLiabilities
us-gaap:ConsolidatedEntities
bsig:IncreaseDecreaseinInvestmentAdvisoryFeesReceivableandRelatedPartyReceivables
us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel
bsig:InvestmentFairValueDisclosurePercentageofInvestmentHeldinCash
us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel
bsig:InvestmentFairValueDisclosurePercentageofInvestmentHeldinEquitySecurities
us-gaap:ConsolidatedEntities, us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
bsig:MaximumRatioOfThirdPartyBorrowingsToTrailingTwelveMonthsAdjustedEBITDA

bsig:NetIncomeLossAvailabletoCommonStockholdersNetofParticipatingUnvestedSecurities

bsig:NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestBeforeAllocationToTemporaryEquities
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

bsig:OCIDebtSecuritiesAvailableForSaleGainLossAfterAdjustmentAndTaxAmortization

bsig:OperatingEarningsAfterVariableCompensation
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:SubsegmentsConsolidationItems

bsig:OtherComprehensiveIncomeLossInPermanentAndTemporaryEquitiesForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

bsig:OtherIncomeFromExpenseReimbursement
us-gaap:ConsolidatedEntities
bsig:PaymentsforContributionstoEquityMethodInvestees
us-gaap:ConsolidatedEntities
bsig:PaymentsforNoncontrollingInterestCapitalRedeemed
us-gaap:ConsolidatedEntities
bsig:PaymenttoFormerParentforRedemptionofCoinvestments

bsig:PermanentAndTemporaryEquitiesNoncontrollingInterestDecreaseFromFundDeconsolidation
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
bsig:ProceedsfromEquityMethodInvestmentDistributionAndSale
us-gaap:ConsolidatedEntities
bsig:ProceedsfromRedeemableNoncontrollingInterestCapitalRaised

bsig:ProfitLossPermanentAndTemporaryEquities
us-gaap:ConsolidatedEntities
bsig:RedemptionOfRedeemableNonControllingInterestCapital
us-gaap:ConsolidatedEntities
bsig:SaleOfInvestmentSecuritiesandOtherInvestmentSecuritiesActivity

bsig:StockIssuedDuringPeriodValueNewIssuesPermanentAndTemporaryEquities

bsig:StockRepurchasedDuringPeriodValuePermanentandTemporaryEquities
us-gaap:ConsolidatedEntities
bsig:TemporaryEquityNoncontrollingInterestDecreaseFromFundDeconsolidation

bsig:VariableCompensation
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:SubsegmentsConsolidationItems
us-gaap:IncomeStatementLocation
us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

us-gaap:CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations

us-gaap:CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations
us-gaap:ConsolidatedEntities, us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType, us-gaap:VariableRate
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1
us-gaap:ConsolidatedEntities, us-gaap:Range, us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType, us-gaap:VariableRate

us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
us-gaap:ConsolidationItems
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodBeforeIncomeTax
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:ConsolidationItems
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation

us-gaap:DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingExpense
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue
us-gaap:ConsolidatedEntities
us-gaap:EquityMethodInvestmentDividendsOrDistributions
us-gaap:ConsolidatedEntities
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
us-gaap:ConsolidatedEntities
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
us-gaap:ConsolidatedEntities
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FinitelivedIntangibleAssetsAcquired1
us-gaap:ConsolidatedEntities
us-gaap:GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee

us-gaap:GoodwillImpairmentLoss
us-gaap:ConsolidatedEntities
us-gaap:ReportingUnit
us-gaap:StatementBusinessSegments

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTax
us-gaap:ConsolidationItems

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
us-gaap:ConsolidatedEntities
us-gaap:IncomeLossFromEquityMethodInvestments
us-gaap:ConsolidatedEntities, us-gaap:InvestmentType
us-gaap:ConsolidatedEntities
us-gaap:IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities
us-gaap:AwardType
us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
us-gaap:ConsolidatedEntities
us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeNet
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:InvestmentType
us-gaap:ConsolidationItems
us-gaap:SubsegmentsConsolidationItems
us-gaap:ConsolidatedEntities
us-gaap:InvestmentIncomeNonoperating
us-gaap:ConsolidatedEntities, us-gaap:InvestmentType
us-gaap:ConsolidatedEntities
us-gaap:LaborAndRelatedExpense

us-gaap:LeaseCost
us-gaap:ConsolidatedEntities, us-gaap:Range, us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage

us-gaap:NetCashProvidedByUsedInFinancingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
us-gaap:ConsolidatedEntities

us-gaap:NoncontrollingInterestDecreaseFromDeconsolidation
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax
us-gaap:StatementEquityComponents
us-gaap:IncomeStatementLocation
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax
us-gaap:ConsolidatedEntities
us-gaap:OtherDepreciationAndAmortization
us-gaap:ConsolidatedEntities
us-gaap:PaymentsOfDebtIssuanceCosts
us-gaap:ConsolidatedEntities
us-gaap:PaymentsOfDistributionsToAffiliates
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates
us-gaap:ConsolidatedEntities
us-gaap:ProceedsFromMinorityShareholders
us-gaap:ConsolidatedEntities
us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestments
us-gaap:SubsequentEventType
us-gaap:ProceedsFromSaleOfEquityMethodInvestments
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:ProceedsFromSaleOfOtherInvestments

us-gaap:ReclassificationFromAociCurrentPeriodTax
us-gaap:StatementEquityComponents

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesNewIssues
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
us-gaap:StockRepurchasedDuringPeriodShares

us-gaap:StockRepurchasedDuringPeriodValue
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities
us-gaap:TemporaryEquityNetIncome

us-gaap:TreasuryStockAcquiredAverageCostPerShare
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
us-gaap:TreasuryStockSharesRetired

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:VariableLeaseCost

bsig:CashAndCashEquivalentsAtCarryingValueHeldForSale

bsig:CommitmentsToFundInvestmentActivity

bsig:DeferredCompensationVoluntaryDeferralPlanLiabilityCurrentAndNoncurrent

bsig:DeferredTaxAssetsInterestExpense

bsig:DeferredTaxAssetsInvestmentPartnerships

bsig:DeferredTaxLiabilitiesRightOfUseAssets

bsig:DefinedContributionPlanAssets
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
bsig:DisposalGroupIncludingDiscontinuedOperationAssetsIncludingAssetsHeldForSale
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
bsig:DisposalGroupIncludingDiscontinuedOperationDeferredCompensationLiabilities
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
bsig:DisposalGroupIncludingDiscontinuedOperationInvestmentAdvisoryFeesReceivable

bsig:DisposalGroupIncludingDiscontinuedOperationInvestments
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:InvestmentType
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
bsig:DisposalGroupIncludingDiscontinuedOperationLiabilitiesIncludingLiabilitiesHeldForSale
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
bsig:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilities
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
bsig:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightOfUseAsset
us-gaap:RelatedPartyTransactionsByRelatedParty
bsig:DueFromUnconsolidatedFunds
us-gaap:ConsolidatedEntities
bsig:DuetoFormerParentOtherObligationsCurrentandNoncurrent

bsig:EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostToBeRecognizedYearTwo

bsig:EquityAccountedInvestmentsInAffiliatesAndConsolidatedFunds

bsig:FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
bsig:FiniteLivedIntangibleAssetsAccumulatedAmortizationAndImpairment
us-gaap:ConsolidatedEntities
bsig:InvestmentAdvisoryFeesReceivable

bsig:InvestmentsAssignedtoFormerParentLiability

bsig:InvestmentsIncludingDisposalGroupAndDiscontinuedOperations

bsig:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
bsig:LiabilitiesHeldForSaleNotPartOfDisposalGroup
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
bsig:LineOfCreditFacilityCovenantTermsMinimumConsolidatedAdjustedEBITDA

bsig:ProfitInterestsCompensationLiability
us-gaap:AwardType, us-gaap:PlanName
bsig:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageGrantDateFairValue
us-gaap:ConsolidatedEntities
bsig:StockholdersEquityDeficit

bsig:TotalEquityIncludingTemporaryEquityCarryingAmountAttributableToNoncontrollingInterest
us-gaap:ConsolidatedEntities
bsig:VariableInterestEntityNonconsolidatedEquityInterests
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
us-gaap:ConsolidatedEntities
us-gaap:AccountsPayableCurrentAndNoncurrent
us-gaap:ConsolidatedEntities
us-gaap:AccruedIncomeTaxes
us-gaap:ConsolidatedEntities
us-gaap:AccruedLiabilitiesCurrentAndNoncurrent
us-gaap:ConsolidatedEntities
us-gaap:AlternativeInvestment
us-gaap:ConsolidatedEntities, us-gaap:InvestmentType
us-gaap:InvestmentType

us-gaap:AssetsFairValueDisclosure
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:ConsolidatedEntities
us-gaap:AssetsHeldForSaleLongLivedFairValueDisclosure
us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:ConsolidatedEntities, us-gaap:InvestmentType
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:AssetsHeldForSaleNotPartOfDisposalGroup
us-gaap:ConsolidatedEntities
us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance
us-gaap:ConsolidatedEntities
us-gaap:DebtWeightedAverageInterestRate

us-gaap:DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible

us-gaap:DeferredCompensationLiabilityCurrentAndNoncurrent
us-gaap:ConsolidatedEntities

us-gaap:DeferredCompensationSharebasedArrangementsLiabilityCurrentAndNoncurrent
us-gaap:AwardType
us-gaap:ConsolidatedEntities
us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsDerivativeInstruments

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationAccruedLiabilities
us-gaap:ConsolidatedEntities
us-gaap:DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationConsideration
us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationDeferredTaxAssets
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationGoodwill1
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationIntangibleAssets
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherAssets
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment

us-gaap:DueFromRelatedParties
us-gaap:ConsolidatedEntities
us-gaap:EmployeeRelatedLiabilitiesCurrentAndNoncurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:EquityMethodInvestments
us-gaap:ConsolidatedEntities
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:GoodwillGross
us-gaap:StatementBusinessSegments

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss
us-gaap:StatementBusinessSegments
us-gaap:ConsolidatedEntities
us-gaap:IncomeTaxReceivable
us-gaap:ConsolidatedEntities
us-gaap:InterestPayableCurrentAndNoncurrent

us-gaap:Investments
us-gaap:ConsolidatedEntities

us-gaap:InvestmentsFairValueDisclosure
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:ConsolidatedEntities, us-gaap:InvestmentType

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
us-gaap:ConsolidatedEntities
us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation
us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:LineOfCredit
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:LoansAndLeasesReceivableRelatedParties
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType
us-gaap:LongTermDebtFairValue
us-gaap:CreditFacility, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:MoneyMarketFundsAtCarryingValue
us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:NotesReceivableRelatedParties

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards
us-gaap:OtherCommitments
us-gaap:OtherCommitment
us-gaap:Range
us-gaap:ConsolidatedEntities
us-gaap:OtherLiabilities
us-gaap:ConsolidatedEntities
us-gaap:OtherLongTermDebtNoncurrent
us-gaap:ConsolidatedEntities
us-gaap:RedeemableNoncontrollingInterestEquityCarryingAmount
us-gaap:ConsolidatedEntities
us-gaap:RestrictedCash
us-gaap:ConsolidatedEntities
us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
us-gaap:ConsolidatedEntities
us-gaap:TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests
us-gaap:ConsolidatedEntities
us-gaap:TradingSecuritiesDebt
us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
us-gaap:ConsolidatedEntities
us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Interest Expense
Balance Sheet
Finite Lived Intangible Assets Net
Assets
Operating Lease Right Of Use Asset
Current Assets
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
NonCurrent Assets
Finite Lived Intangible Assets Net
Liabilities
Operating Lease Liability
Noncurrent Liabilities
Long Term Debt
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Net Cash Provided By Used In Operating Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
 us-gaap:SharesOutstanding us-gaap:ConsolidatedEntities,us-gaap:StatementEquityComponents bsig:ConsolidatedEntityExcludingConsolidatedFunds,us-gaap:CommonStock▁▁▁▁▁▂▂▃▄▄▇▇██79.479.479.480.180.182.585.988.891.691.9105.2106.3108.9110.5
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▂▁▁▁▁▂▂▃▄▅▇▇██82.982.381.880.980.485.185.990.091.597.8105.8106.5108.6109.6
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁▁▁▁▁▂▃▃▄▅▇▇██79.479.379.680.080.485.185.990.091.597.6105.6106.4108.4109.4
us-gaap:EarningsPerShareBasic █▁▄▁▁▁▂▂▁▂▁▂▁▂6.710.342.490.460.230.380.790.840.310.540.220.510.020.52
us-gaap:EarningsPerShareDiluted █▁▄▁▁▁▂▂▁▂▁▂▁▂6.420.332.420.460.230.380.790.840.310.540.220.510.020.52
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare ▂▂█▂▂▂▃▃▂▂▂▂▁3.1e-072.8e-072.45e-064.6000000000000004e-072.3000000000000002e-073.8e-077.700000000000003e-078.4e-073.1e-075.4e-072.1999999999999998e-075.1e-072e-08NA
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare ▂▂█▂▂▂▃▃▂▃▂▂▁2.9e-072.7e-072.4100000000000002e-064.6000000000000004e-072.3000000000000002e-073.8e-077.700000000000003e-078.4e-073.1e-075.4e-072.1999999999999998e-075.1e-072e-08NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:ComprehensiveIncomeNetOfTax █▁▄▂▁▁▂▂▁▂▁▂▁533.428.7200.639.219.831.070.375.228.053.823.154.21.1NA
 us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest us-gaap:ConsolidatedEntities bsig:ConsolidatedFunds█▄▃▂▆▁▃▃▁▃54.613.47.5-3.235.0-10.56.57.6-6.48.4NANANANA
us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal ▁▁█▁0.0-1.3234.17.2NANANANANANANANANANA
 us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds▁▁█▁0.0-1.3234.17.2NANANANANANANANANANA
 us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap:ConsolidatedEntities,us-gaap:DisposalGroupClassification,us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations bsig:ConsolidatedEntityExcludingConsolidatedFunds,us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations,bsig:CopperRockCapitalPartnersLLCNANA0.07.2NANANANANANANANANANA
 us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap:ConsolidationItems us-gaap:MaterialReconcilingItems█▁0.0-1.3NANANANANANANANANANANANA
 us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap:SubsegmentsConsolidationItems us-gaap:MaterialReconcilingItemsNANANA7.2NANANANANANANANANANA
 us-gaap:GainLossOnInvestments us-gaap:ConsolidatedEntities bsig:ConsolidatedFundsNANA-0.2-4.04.7-12.0-0.80.8-9.52.6-5.3-0.8NANA
 us-gaap:GeneralAndAdministrativeExpense us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds▁▂▅▄▄▅▇▆▆▇█▆▆18.020.628.425.424.527.733.531.731.132.535.731.029.8NA
us-gaap:IncomeLossFromContinuingOperations 24.7NA205.534.053.922.174.383.021.661.118.854.12.5NA
us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity NA21.9NANANA17.3NANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ▂▂█▂▂▂▃▂▂▃▂▁▁▃34.632.2283.946.861.235.788.651.035.782.734.910.76.183.5
us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest █▁24.721.9NANA27.26.7NANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▄▄█▄▄▄▄▂▄▅▄▁▄9.910.378.412.87.313.614.3-32.014.121.616.1-43.43.6NA
us-gaap:IncomeTaxesPaid █▁▇▁▂▁▂▃▅▄▅▄31.60.329.31.69999999999999952.40.03.09.818.912.917.612.5NANA
us-gaap:InterestExpense ▄▄6.26.2NANA7.27.5NANANANANANANANA
us-gaap:InterestIncomeExpenseNet -6.2NA-6.3-6.9-7.2-7.5-7.7-7.9-8.5-5.9-5.0-5.4NANA
 us-gaap:InterestIncomeExpenseNet us-gaap:StatementBusinessSegments us-gaap:AllOtherSegments-5.4NANA-5.3-5.6-5.6NA-5.7-6.2-3.5NA-3.1NANA
 us-gaap:InterestIncomeExpenseNet us-gaap:SubsegmentsConsolidationItems us-gaap:MaterialReconcilingItems-0.8NANA-1.6-1.6-1.9NA-2.2-2.3-2.4NA-2.3NANA
us-gaap:InterestPaidNet ▁█1.6000000000000018.2NA9.03.210.1NA10.84.69.4NANANANA
us-gaap:NetIncomeLoss █▁▄▁▁▁▂▂▁▂▁▂▁▂532.727.0198.037.218.932.674.375.428.061.118.854.02.154.8
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest █▄▃▂▆▁▃▃▁▃▂▂54.613.47.5-3.235.0-10.56.5000000000000027.6-6.48.4-4.20.2NANA
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic NANA198.037.218.932.667.875.428.052.723.054.02.157.3
us-gaap:NonoperatingIncomeExpense ▂▂█▂▃▁▂▂▂▂▂▂▂-1.5-4.9245.36.335.0-38.44.8-0.9-10.914.75.3-2.6-9.2NA
us-gaap:OperatingExpenses ▁▁▄▄▄▂▃▄▅▄▆██97.294.1140.2141.9148.5108.5123.6145.9160.5139.2184.9216.8218.6NA
us-gaap:OperatingIncomeLoss ▃▃▄▄▂▇█▅▄▆▃▁▁▂36.137.138.640.526.274.183.851.946.668.029.613.315.325.6
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▅▆█▇▅▁█▃▄▅▄▄▂0.11.12.01.40.3-2.11.9-0.8-0.60.5-0.5-0.4-1.6NA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▅▆█▇▅▁█▃▄▆▄▄0.71.72.62.00.9-1.62.5-0.20.01.10.10.2NANA
 us-gaap:OtherIncome us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds▁▁▄▂▃▂▂▁▂▁▅▁█1.31.32.11.62.01.61.71.41.51.42.41.43.3NA
us-gaap:ProfitLoss █▁▃▁▂▁▂▂▁▂▁▂▁587.340.4205.534.053.922.174.383.021.661.118.854.22.5NA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▁▁▄▄▄▄▆▅▆▆▆▇▇█133.3125.3178.8178.2170.7178.5207.4196.4205.9207.5214.5229.6226.4249.7
us-gaap:Revenues ▁▁▄▄▄▄▆▅▅▅▆▇▇█133.3131.2178.8182.4174.7182.6207.4197.8207.1207.2214.5230.1233.9249.7
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:Assets █▂▁▂▂▂▂▂▂1748.51436.91379.21417.21422.81423.51419.71432.31425.1NA1553.7NANANA
us-gaap:Liabilities ▁▃▃▅▆▇▆▇█884.61006.9994.81145.81190.31229.71221.31279.61321.5NA1377.6NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▂▁▂▂▂▂▂▂1748.51436.91379.21417.21422.81423.51419.71432.31425.1NA1553.7NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
 us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds█▃▃▁▁▁▁▁▁1175.4450.5401.9129.8115.8124.4111.3116.595.9NA340.6NANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents █▃▃▁▁▁▁▁▁▁▃▃▂1177.0452.1404.1130.9125.3131.2121.0124.7103.385.1345.5321.5281.6NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFundsNANA170.3NANANA147.6NANANA130.7NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:ConsolidatedEntities,us-gaap:PropertyPlantAndEquipmentByType bsig:ConsolidatedEntityExcludingConsolidatedFunds,us-gaap:FurnitureAndFixturesNANA12.5NANANA9.0NANANA8.9NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:ConsolidatedEntities,us-gaap:PropertyPlantAndEquipmentByType bsig:ConsolidatedEntityExcludingConsolidatedFunds,us-gaap:LeaseholdImprovementsNANA36.2NANANA37.2NANANA38.0NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:ConsolidatedEntities,us-gaap:PropertyPlantAndEquipmentByType bsig:ConsolidatedEntityExcludingConsolidatedFunds,us-gaap:OfficeEquipmentNANA20.8NANANA20.0NANANA30.1NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:ConsolidatedEntities,us-gaap:PropertyPlantAndEquipmentByType bsig:ConsolidatedEntityExcludingConsolidatedFunds,us-gaap:SoftwareAndSoftwareDevelopmentCostsNANA97.9NANANA78.5NANANA50.8NANANA
 us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFundsNANA98.7NANANA81.8NANANA81.7NANANA
us-gaap:AmortizationOfIntangibleAssets NANA1.61.61.91.61.71.61.7NANANANANA
 us-gaap:AmortizationOfIntangibleAssets us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFundsNANA1.61.61.91.61.71.61.71.61.71.61.7NA
 us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds▁▅███▆▆▅▃53.262.671.671.870.966.665.863.558.3NA49.0NANANA
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures NANA2.0NANANA2.0NANANA1.9NANANA
 us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:RelatedPartyTransactionsByRelatedParty us-gaap:EquityMethodInvesteeNANA2.0NANANA2.0NANANA1.9NANANA
us-gaap:Goodwill NANA182.1182.1258.2308.5308.5274.6274.6308.5308.5NANANA
 us-gaap:Goodwill us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds▁▁▅▅█████20.334.0182.1182.1258.2258.2274.6274.6274.6NA274.6NANANA
 us-gaap:Goodwill us-gaap:StatementBusinessSegments bsig:AlternativesNANA148.1148.1148.1153.1153.1148.1148.1153.1153.1NANANA
 us-gaap:Goodwill us-gaap:StatementBusinessSegments bsig:LiquidAlphaNANA13.713.789.8133.3133.3106.2106.2133.3133.3NANANA
 us-gaap:Goodwill us-gaap:StatementBusinessSegments bsig:QuantAndSolutionsNANA20.320.320.322.122.120.320.322.122.1NANANA
 us-gaap:IntangibleAssetsNetExcludingGoodwill us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds▁▁▇▇▇▇███0.20.258.460.061.663.565.166.868.4NA71.7NANANA
us-gaap:FiniteLivedIntangibleAssetsNet NANA57.459.060.662.564.1NANANANANANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:CustomerRelationshipsNANA57.459.060.662.564.165.867.469.170.7NANANA
us-gaap:DeferredTaxAssetsLiabilitiesNet NANA170.8NANANA243.6NANANA270.1NANANA
us-gaap:OperatingLeaseRightOfUseAsset NANANA93.7108.7105.337.740.343.4NANANANANA
 us-gaap:OperatingLeaseRightOfUseAsset us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds▁▅█67.480.190.7NANANA37.7NANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds▁▄▃▅▅▆███9.322.721.329.531.537.444.345.946.5NA43.2NANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:ConsolidatedEntities,us-gaap:FairValueByFairValueHierarchyLevel bsig:ConsolidatedEntityExcludingConsolidatedFunds,us-gaap:FairValueInputsLevel1▁▁▁▃▄▆▇██9.310.99.716.521.127.933.235.235.9NA35.0NANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:ConsolidatedEntities,us-gaap:FairValueByFairValueHierarchyLevel bsig:ConsolidatedEntityExcludingConsolidatedFunds,us-gaap:FairValueInputsLevel2NA11.811.613.010.49.511.110.710.6NA8.2NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
 us-gaap:OtherAccruedLiabilitiesCurrent us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFundsNANA0.7NANANA0.7NANANA1.7NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:LongTermDebt NANA400.0NANANA568.8NANANA393.3NANANA
 us-gaap:LongTermDebt us-gaap:CreditFacility,us-gaap:DebtInstrument,us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:LongtermDebtType us-gaap:RevolvingCreditFacility,bsig:RevolvingCreditFacilityExpiringAugust222022,us-gaap:FairValueInputsLevel2,us-gaap:LineOfCredit53.9NANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:CreditFacility,us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:LongtermDebtType us-gaap:RevolvingCreditFacility,us-gaap:FairValueInputsLevel2,us-gaap:LineOfCredit▁█53.981.0NA80.0130.0220.0140.0175.0210.0NA0.0NANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:LongtermDebtType bsig:SeniorNotes4.80due2026,us-gaap:FairValueInputsLevel2,us-gaap:SeniorNotes██▇▆▅▃▂▁▁272.9272.9272.8272.7272.6272.5272.4272.3272.3NA272.2NANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:LongtermDebtType bsig:SeniorNotes5.125due2031,us-gaap:FairValueInputsLevel2,us-gaap:SeniorNotes█▇▅▅▄▄▄▂▁121.7121.6121.5121.5121.4121.4121.4121.3121.2NA121.1NANANA
 us-gaap:LongTermDebt us-gaap:FairValueByFairValueHierarchyLevel us-gaap:FairValueInputsLevel2▁▃▁▃▅█▆▇█394.6475.5394.3474.2545.7635.6568.8603.6628.5NA393.3NANANA
 us-gaap:LongTermDebt us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:LongtermDebtType us-gaap:FairValueInputsLevel2,bsig:ThirdPartyDebtArrangementNANA394.3474.2524.0613.9533.8NANANANANANANA
 us-gaap:MinorityInterest us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFundsNA5.61.71.41.41.31.31.91.8NA1.6NANANA
 us-gaap:MinorityInterest us-gaap:ConsolidatedEntities bsig:ConsolidatedFundsNA93.780.373.078.849.148.840.132.7NA29.3NANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo ▁█▆▆8.09.89.39.2NANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree ▁▄██7.59.111.311.2NANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour ▁▅██7.69.210.410.4NANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA10.4NANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA77.4NANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest █▄▄▂▂▂▂▂▁▁▂▂▂▂863.9430.0384.4185.8152.6119.3114.570.821.88.4134.2101.3149.1172.0
 us-gaap:AdditionalPaidInCapital us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds▁▁▁▂▂▃▅█493.4492.8492.4501.2500.6516.2534.3560.4NANA764.6NANANA
 us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds█▄▄▂▂▂▁▁381.6-150.3-176.5-373.7-410.1-428.3-452.5-511.7NANA-640.5NANANA
 us-gaap:MinorityInterest us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFundsNA5.61.71.41.41.31.31.91.8NA1.6NANANA
 us-gaap:MinorityInterest us-gaap:ConsolidatedEntities bsig:ConsolidatedFundsNA93.780.373.078.849.148.840.132.7NA29.3NANANA
us-gaap:StockIssuedDuringPeriodValueNewIssues 0.1NA0.00.2NANANANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▁▁▁▁▁▃▃▂▃▇█▃▄0.50.40.50.40.51.11.10.71.23.23.51.31.6NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▆▆▇█▆▇█▇▁▇▇65.7-20.3-1.530.095.5-33.545.181.027.9-292.552.352.4NANA
us-gaap:NetCashProvidedByUsedInInvestingActivities █▂▅▁▂▂▂▂▂▂▂▁721.12.8330.1-69.27.81.317.81.5-5.9-4.4-1.2-31.4NANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃█▃▇▁▇▃▃▅▆▄▆-56.778.8-68.457.8-109.242.4-66.6-61.1-3.836.5-27.118.9NANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect █▃▅▃▃▃▃▃▃▁▃▃730.161.3273.25.6-5.910.2-3.721.418.2-260.424.039.9NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
 us-gaap:AmortizationOfFinancingCosts us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds████▆██▃▁▃▃▁1.11.11.11.11.01.11.10.90.80.90.90.8NANA
 us-gaap:DepreciationDepletionAndAmortization us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds██▇▆▆▇▆▄▃▂▂▂▁5.75.65.45.25.15.35.04.44.03.83.93.73.5NA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▆▆▇█▆▇█▇▁▇▇65.7-20.3-1.530.095.5-33.545.181.027.9-292.552.352.4NANA
us-gaap:NetIncomeLoss █▁▄▁▁▁▂▂▁▂▁▂▁▂532.727.0198.037.218.932.674.375.428.061.118.854.02.154.8
us-gaap:ProfitLoss █▁▃▁▂▁▂▂▁▂▁▂▁587.340.4205.534.053.922.174.383.021.661.118.854.22.5NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities █▂▅▁▂▂▂▂▂▂▂▁721.12.8330.1-69.27.81.317.81.5-5.9-4.4-1.2-31.4NANA
 us-gaap:PaymentsToAcquirePropertyPlantAndEquipment us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds▁▁▂▅█▄▅██▅▅▄3.93.54.76.89.46.37.29.69.87.37.26.5NANA
 us-gaap:PaymentsToAcquireInvestments us-gaap:ConsolidatedEntities bsig:ConsolidatedFundsNANA-94.052.121.025.1-148.534.793.732.7NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃█▃▇▁▇▃▃▅▆▄▆-56.778.8-68.457.8-109.242.4-66.6-61.1-3.836.5-27.118.9NANA
 us-gaap:ProceedsFromIssuanceOfLongTermDebt us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds▁█37.095.0NA0.00.080.0NA220.025.0240.0NA0.0NANA
 us-gaap:RepaymentsOfLongTermDebt us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds█▁64.114.0NA71.790.013.3NA245.025.05.0NA0.0NANA
 us-gaap:PaymentsOfDividends us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFunds▁▁▁▁▁▆▆▅█▇██0.50.60.50.40.55.85.75.07.46.47.87.9NANA
us-gaap:Dividends ▁▁▁▁▁▆▆▇▇▇███0.80.80.80.80.78.48.68.99.29.210.710.611.0NA
 us-gaap:PaymentsForRepurchaseOfCommonStock us-gaap:ConsolidatedEntities bsig:ConsolidatedEntityExcludingConsolidatedFundsNANA10.70.018.217.127.225.43.3183.99.134.6NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31

Shares Outstanding

us-gaap:SharesOutstanding us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:CommonStock


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value79797980808285889191105106108110109114
Percentage of SharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value82828180808585909197105106108109
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value79797980808585909197105106108109
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6.710.342.490.460.230.380.790.840.310.540.220.510.020.52
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6.420.332.420.460.230.380.790.840.310.540.220.510.020.52
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.310.282.450.460.230.380.770.840.310.540.220.510.02
Percentage of IncomeLossFromContinuingOperationsPerBasicShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Diluted Share

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.290.272.410.460.230.380.770.840.310.540.220.510.02
Percentage of IncomeLossFromContinuingOperationsPerDilutedShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value533282003919317075285323541.1
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax400.222.9112.222.011.617.433.938.313.625.910.823.60.5

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest us-gaap:ConsolidatedEntities

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

bsig:ConsolidatedFunds


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value54137.5-3.235-10.56.57.6-6.48.4
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax41.010.74.2-1.820.5-5.93.13.9-3.14.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedFunds0.00.00.00.00.00.00.00.00.00.0

Disposal Group Not Discontinued Operation Gain Loss On Disposal

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal


Disposal
Period End2021-06-302021-03-312020-12-312020-09-30
Value0.0-1.32347.2
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal0.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-1.0130.94.0

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap:ConsolidatedEntities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Disposal
Period End2021-06-302021-03-312020-12-312020-09-30
Value0.0-1.32347.2
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal0.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-1.0130.94.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.0

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:CopperRockCapitalPartnersLLC


Disposal
Period End2020-12-312020-09-30
Value0.07.2
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal0.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.04.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedEntityExcludingConsolidatedFunds us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations bsig:CopperRockCapitalPartnersLLC0.00.0

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Disposal
Period End2021-06-302021-03-31
Value0.0-1.3
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal0.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-1.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.0

us-gaap:DisposalGroupNotDiscontinuedOperationGainLossOnDisposal us-gaap:SubsegmentsConsolidationItems

us-gaap:MaterialReconcilingItems


Disposal
Period End2020-09-30
Value7.2
Percentage of DisposalGroupNotDiscontinuedOperationGainLossOnDisposal100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.0

Gain Loss On Investments

us-gaap:GainLossOnInvestments us-gaap:ConsolidatedEntities

us-gaap:GainLossOnInvestments

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-1.54.317156.1-23.1113.44.618-8.14.7
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.13.49.78.63.6-12.95.61.72.28.8-3.82.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.00.00.00.0

bsig:ConsolidatedFunds


Gain
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-0.2-4.04.7-12.0-0.80.8-9.52.6-5.3-0.8
Percentage of GainLossOnInvestments-1.1-26.177.051.9-6.823.5-206.514.265.4-17.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-2.22.8-6.7-0.40.4-4.61.3-2.5-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedFunds0.00.00.00.00.00.00.00.00.00.0

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense us-gaap:ConsolidatedEntities

us-gaap:GeneralAndAdministrativeExpense

bsig:ConsolidatedEntityExcludingConsolidatedFunds


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value18202825242733313132353129
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.516.415.914.314.415.516.216.115.115.716.613.513.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Loss From Continuing Operations

us-gaap:IncomeLossFromContinuingOperations

us-gaap:IncomeLossFromContinuingOperations


Income
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value242053453227483216118542.5
Percentage of IncomeLossFromContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.5114.919.131.612.435.842.310.529.48.823.61.1

Income Loss From Continuing Operations Attributable To Noncontrolling Entity

us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity

us-gaap:IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity


Income
Period End2021-03-312020-03-31
Value2117
Percentage of IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.59.7

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value34322834661358851358234106.183
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.025.7158.826.335.920.042.726.017.339.916.34.72.733.4

Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value2421276.7
Percentage of IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.517.515.93.8

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value9.91078127.31314-32.0142116-43.43.6
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.48.243.87.24.37.66.9-16.36.810.47.5-18.91.6

us-gaap:IncomeTaxExpenseBenefit us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value9.6106.68.5
Percentage of IncomeTaxExpenseBenefit97.0101.090.462.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.28.33.94.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.0

us-gaap:MaterialReconcilingItems


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value-0.9-0.1-0.7-2.1
Percentage of IncomeTaxExpenseBenefit-9.1-1.0-9.6-15.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.7-0.1-0.4-1.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit us-gaap:StatementBusinessSegments

us-gaap:AllOtherSegments


Income
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value11119.6-10.01212-12.415
Percentage of IncomeTaxExpenseBenefit118.292.2131.5-73.5-38.486.5-57.4-35.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.86.65.6-5.66.35.9-6.06.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AllOtherSegments0.00.00.00.00.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit us-gaap:SubsegmentsConsolidationItems

us-gaap:MaterialReconcilingItems


Income
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-1.81.0-2.33.6-44.31.99.2-58.8
Percentage of IncomeTaxExpenseBenefit-18.27.8-31.526.5138.413.542.6135.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.40.6-1.32.0-22.60.94.4-25.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.0

Income Taxes Paid

us-gaap:IncomeTaxesPaid

us-gaap:IncomeTaxesPaid


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value310.3291.69999999999999952.40.03.09.818121712
Percentage of IncomeTaxesPaid100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.70.216.41.01.40.01.45.09.26.28.25.4

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-06-302020-03-31
Value6.26.27.27.5
Percentage of InterestExpense100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.74.94.24.2

us-gaap:InterestExpense us-gaap:ConsolidatedEntities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value6.36.26.46.97.47.88.18.38.87.06.26.36.1
Percentage of InterestExpense101.6100.00.00.0102.8104.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.74.93.63.94.34.43.94.24.33.42.92.72.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestExpense us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Interest
Period End2021-06-302021-03-312020-06-302020-03-31
Value5.45.45.65.6
Percentage of InterestExpense87.187.177.874.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.14.33.33.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.0

us-gaap:MaterialReconcilingItems


Interest
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.80.81.61.9
Percentage of InterestExpense12.912.922.225.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.60.91.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.0

us-gaap:InterestExpense us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value0.80.80.80.80.80.70.80.70.80.70.70.7
Percentage of InterestExpense12.912.90.00.011.19.30.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.60.40.40.50.40.40.40.40.30.30.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.0

Interest Income Expense Net

us-gaap:InterestIncomeExpenseNet

us-gaap:InterestIncomeExpenseNet


Interest
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-6200000.0-6300000.0-6900000.0-7200000.0-7500000.0-7700000.0-7900000.0-8500000.0-5900000.0-5000000.0-5400000.0
Percentage of InterestIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.7-3.5-3.9-4.2-4.2-3.7-4.0-4.1-2.8-2.3-2.4

us-gaap:InterestIncomeExpenseNet us-gaap:StatementBusinessSegments

us-gaap:AllOtherSegments


Interest
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-5400000.0-5300000.0-5600000.0-5600000.0-5700000.0-6200000.0-3500000.0-3100000.0
Percentage of InterestIncomeExpenseNet87.176.877.874.772.272.959.357.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.1-3.0-3.3-3.1-2.9-3.0-1.7-1.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AllOtherSegments0.00.00.00.00.00.00.00.0

us-gaap:InterestIncomeExpenseNet us-gaap:SubsegmentsConsolidationItems

us-gaap:MaterialReconcilingItems


Interest
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-800000.0-1600000.0-1600000.0-1900000.0-2200000.0-2300000.0-2400000.0-2300000.0
Percentage of InterestIncomeExpenseNet12.923.222.225.327.827.140.742.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.6-0.9-0.9-1.1-1.1-1.1-1.2-1.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1.6000000000000018.29.03.210104.69.4
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.26.55.11.95.75.52.24.5

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value532271983718327475286118542.154
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax399.621.5110.720.911.118.335.838.413.629.48.823.50.921.9

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value-11.7-20.9-18.1-22.3
Percentage of NetIncomeLoss-2.2-77.4-95.8-68.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.8-16.7-10.6-12.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.0

us-gaap:MaterialReconcilingItems


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value505-1.23.56.7
Percentage of NetIncomeLoss94.9-4.418.520.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax379.2-1.02.13.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bsig:LiquidAlphaDomain


Net
Period End2021-03-312020-06-302020-03-31
Value8.84.717
Percentage of NetIncomeLoss32.624.952.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.02.89.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bsig:LiquidAlphaDomain0.00.00.0

us-gaap:OperatingSegments, bsig:QuantSolutionsDomain


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value47402831
Percentage of NetIncomeLoss9.0149.3152.495.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.832.216.917.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bsig:QuantSolutionsDomain0.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments

bsig:AlternativesDomain


Net
Period End2020-09-302020-06-302019-09-302019-06-30
Value11108.511
Percentage of NetIncomeLoss29.854.011.342.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.26.04.35.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:AlternativesDomain0.00.00.00.0

bsig:LiquidAlphaDomain


Net
Period End2020-09-302020-06-302019-09-302019-06-30
Value17152525
Percentage of NetIncomeLoss46.283.133.289.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.79.212.712.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:LiquidAlphaDomain0.00.00.00.0

bsig:QuantSolutionsDomain


Net
Period End2021-06-302020-09-302020-06-302019-09-302019-06-30
Value4733283232
Percentage of NetIncomeLoss9.088.7152.442.4115.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.818.516.916.315.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:QuantSolutionsDomain0.00.00.00.00.0

us-gaap:AllOtherSegments


Net
Period End2021-06-302020-09-302020-06-302019-09-302019-06-30
Value-14.8-23.6-21.8-28.1-28.4
Percentage of NetIncomeLoss-2.8-63.4-115.3-37.3-101.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-11.1-13.2-12.8-14.3-13.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AllOtherSegments0.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:SubsegmentsConsolidationItems

us-gaap:MaterialReconcilingItems


Net
Period End2021-06-302020-09-302020-06-302019-09-302019-06-30
Value499-0.5-14.038-13.0
Percentage of NetIncomeLoss93.8-1.3-74.150.4-46.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax374.9-0.3-8.219.3-6.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value54137.5-3.235-10.56.5000000000000027.6-6.48.4-4.20.2
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax41.010.74.2-1.820.5-5.93.13.9-3.14.0-2.00.1

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest us-gaap:ConsolidatedEntities

bsig:ConsolidatedFunds


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value54137.5-3.235-10.56.57.6-6.48.4-4.20.20.4
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax41.010.74.2-1.820.5-5.93.13.9-3.14.0-2.00.10.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedFunds0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value541335-10.5
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax41.010.720.5-5.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.0

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest us-gaap:SubsegmentsConsolidationItems

us-gaap:MaterialReconcilingItems


Net
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value54-3.235-10.57.6-6.48.40.2
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax41.0-1.820.5-5.93.9-3.14.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1983718326775285223542.157
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax110.720.911.118.332.738.413.625.410.723.50.922.9

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-1.5-4.92456.335-38.44.8-0.9-10.9145.3-2.6-9.2
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.1-3.9137.23.520.5-21.52.3-0.5-5.37.12.5-1.1-4.1

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value9794140141148108123145160139184216218
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax72.975.178.479.687.060.859.674.378.067.186.294.496.6

us-gaap:OperatingExpenses us-gaap:ConsolidatedEntities

bsig:ConsolidatedFunds


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.10.00.10.10.00.20.00.20.00.30.2
Percentage of OperatingExpenses0.10.00.10.10.00.10.00.10.00.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.10.10.00.10.00.10.00.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedFunds0.00.00.00.00.00.00.00.00.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3637384026748351466829131525
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.129.621.622.715.341.540.426.422.632.813.85.86.810.3

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value100000.01100000.02000000.01400000.0300000.0-2100000.01900000.0-800000.0-600000.0500000.0-500000.0-400000.0-1600000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.91.10.80.2-1.20.9-0.4-0.30.2-0.2-0.2-0.7

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:TotalParentEntityDeficit


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value100000.01100000.02000000.01400000.0300000.0-2100000.01900000.0-800000.0-600000.0500000.0-500000.0-400000.0-1600000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.91.10.80.2-1.20.9-0.4-0.30.2-0.2-0.2-0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedEntityExcludingConsolidatedFunds bsig:TotalParentEntityDeficit0.00.00.00.00.00.00.00.00.00.00.00.00.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value100000.01100000.02000000.01400000.0300000.0-2100000.01900000.0-800000.0-600000.0500000.0-500000.0-400000.0-1600000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.91.10.80.2-1.20.9-0.4-0.30.2-0.2-0.2-0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedEntityExcludingConsolidatedFunds us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value700000.01700000.02600000.02000000.0900000.0-1600000.02500000.0-200000.001100000.0100000.0200000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.51.41.51.10.5-0.91.2-0.10.00.50.00.1

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value100000.01100000.02000000.01400000.0300000.0-2100000.01900000.0-800000.0-600000.0500000.0-500000.0-400000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax14.364.776.970.033.3131.276.0400.00.045.5-500.0-200.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.91.10.80.2-1.20.9-0.4-0.30.2-0.2-0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value600000.0600000.0600000.0600000.0600000.0500000.0600000.0600000.0600000.0600000.0600000.0600000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax85.735.323.130.066.7-31.224.0-300.00.054.5600.0300.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.50.30.30.40.30.30.30.30.30.30.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.0

Other Income

us-gaap:OtherIncome us-gaap:ConsolidatedEntities

us-gaap:OtherIncome

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1300000.01300000.02100000.01600000.02000000.01600000.01700000.01400000.01500000.01400000.02400000.01400000.03300000.0
Percentage of OtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.01.01.20.91.20.90.80.70.70.71.10.61.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value587402053453227483216118542.5
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax440.632.2114.919.131.612.435.842.310.529.48.823.61.1

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value133125178178170178207196205207214229226249
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidatedEntities, us-gaap:ProductOrService

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:AssetManagement1


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value111125170178170178197196205207204229226
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.7100.095.4100.0100.0100.095.1100.0100.0100.095.1100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.7100.095.4100.0100.0100.095.1100.0100.0100.095.1100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedEntityExcludingConsolidatedFunds us-gaap:AssetManagement1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:InvestmentPerformance


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value204.65.31.20.31.06.8-1.9-2.2-2.86.9-2.13.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.33.73.00.70.20.63.3-1.0-1.1-1.33.2-0.91.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.33.73.00.70.20.63.3-1.0-1.1-1.33.2-0.91.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedEntityExcludingConsolidatedFunds us-gaap:InvestmentPerformance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:InvestmentType, us-gaap:StatementBusinessSegments

bsig:Alternatives, bsig:Alternatives


Revenue
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value4.943414137434354
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.924.224.523.218.921.121.123.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.924.224.523.218.921.121.123.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:Alternatives bsig:Alternatives100.0100.0100.0100.0100.0100.0100.0100.0

bsig:GlobalNonUSEquity, bsig:LiquidAlphaDomain


Revenue
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value14171918212226
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.210.011.710.511.210.812.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.210.011.710.511.210.812.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:GlobalNonUSEquity bsig:LiquidAlphaDomain100.0100.0100.0100.0100.0100.0100.0

bsig:GlobalNonUSEquity, bsig:QuantSolutionsDomain


Revenue
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value98878285929390
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.949.348.247.747.245.543.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.949.348.247.747.245.543.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:GlobalNonUSEquity bsig:QuantSolutionsDomain100.0100.0100.0100.0100.0100.0100.0

bsig:USEquity, bsig:LiquidAlphaDomain


Revenue
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value6.3232026384040
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.013.012.115.019.319.419.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.013.012.115.019.319.419.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:USEquity bsig:LiquidAlphaDomain100.0100.0100.0100.0100.0100.0100.0

us-gaap:FixedIncomeFunds, bsig:LiquidAlphaDomain


Revenue
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value1.26.16.16.36.66.56.46.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.03.43.63.53.43.23.12.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.03.43.63.53.43.23.12.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:FixedIncomeFunds bsig:LiquidAlphaDomain100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

us-gaap:AssetManagement1


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value111125178170178196205207229
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.7100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.7100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AssetManagement1100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService, us-gaap:StatementGeographical

us-gaap:AssetManagement1, country:US


Revenue
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value99134128133148154156173
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax79.675.375.474.675.575.275.375.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax79.675.375.474.675.575.275.375.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AssetManagement1 country:US100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetManagement1, us-gaap:NonUs


Revenue
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value2544424548515155
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.424.724.625.424.524.824.724.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.424.724.625.424.524.824.724.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AssetManagement1 us-gaap:NonUs100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService, us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

us-gaap:AssetManagement1, country:US, bsig:QuantSolutionsDomain


Revenue
Period End2021-06-302020-06-30
Value8058
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax60.034.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax60.034.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AssetManagement1 country:US bsig:QuantSolutionsDomain100.0100.0

us-gaap:AssetManagement1, country:US, us-gaap:AllOtherSegments


Revenue
Period End2021-06-302020-06-30
Value4.14.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.12.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.12.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AssetManagement1 country:US us-gaap:AllOtherSegments100.0100.0

us-gaap:AssetManagement1, us-gaap:NonUs, bsig:QuantSolutionsDomain


Revenue
Period End2021-06-302020-06-30
Value2623
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.513.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.513.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AssetManagement1 us-gaap:NonUs bsig:QuantSolutionsDomain100.0100.0

us-gaap:AssetManagement1, us-gaap:NonUs, us-gaap:AllOtherSegments


Revenue
Period End2021-06-302020-06-30
Value1.51.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AssetManagement1 us-gaap:NonUs us-gaap:AllOtherSegments100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value133131178182174182207197207207214230233249
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0104.7100.0102.4102.3102.3100.0100.7100.699.9100.0100.2103.3100.0

us-gaap:Revenues us-gaap:ConsolidatedEntities

bsig:ConsolidatedFunds


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.91.41.71.51.71.91.91.11.21.21.2
Percentage of Revenues0.50.81.00.80.81.00.90.50.60.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.81.00.80.81.00.90.50.60.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:ConsolidatedFunds0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value235.26.86.1
Percentage of Revenues17.64.03.93.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.64.24.03.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.0

us-gaap:MaterialReconcilingItems


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value-0.1-0.12.22.0
Percentage of Revenues-0.1-0.11.31.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.11.31.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bsig:LiquidAlphaDomain


Revenuesus-gaap:
Period End2021-03-312020-06-302020-03-31
Value221252
Percentage of Revenues17.27.328.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax18.07.429.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bsig:LiquidAlphaDomain0.00.00.0

us-gaap:OperatingSegments, bsig:QuantSolutionsDomain


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value1111038286
Percentage of Revenues83.378.947.447.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.382.648.548.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bsig:QuantSolutionsDomain0.00.00.00.0

us-gaap:Revenues us-gaap:StatementBusinessSegments

bsig:AlternativesDomain


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value43424137444454
Percentage of Revenues24.024.322.918.921.421.223.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.624.923.519.021.521.223.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:AlternativesDomain0.00.00.00.00.00.00.0

bsig:LiquidAlphaDomain


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value474752616566717076
Percentage of Revenues26.327.028.829.433.032.134.332.633.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.927.629.429.433.232.334.332.633.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:LiquidAlphaDomain0.00.00.00.00.00.00.00.00.0

bsig:QuantSolutionsDomain


Revenuesus-gaap:
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value11189828693939097
Percentage of Revenues83.348.847.447.247.145.243.742.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.349.948.548.247.445.543.642.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:QuantSolutionsDomain0.00.00.00.00.00.00.00.0

us-gaap:AllOtherSegments


Revenuesus-gaap:
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value220.10.10.10.10.10.10.1
Percentage of Revenues16.70.10.10.10.10.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.70.10.10.10.10.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AllOtherSegments0.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:SubsegmentsConsolidationItems

us-gaap:MaterialReconcilingItems


Revenuesus-gaap:
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-0.11.62.22.02.02.51.51.5
Percentage of Revenues-0.10.91.31.11.01.20.70.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.10.91.31.11.01.20.70.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1748143613791417142214231419143214251553
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value6265638064376625
Percentage of Assets358.3444.0466.7466.7
Percentage of Assets358.3444.0466.7466.7
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary100.0100.0100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2021-03-312020-12-312019-12-31
Value130114205
Percentage of Assets9.18.314.5
Percentage of Assets9.18.314.5
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0100.0

us-gaap:Assets us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value639364286625
Percentage of Assets451.1451.8466.7
Percentage of Assets451.1451.8466.7
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary100.0100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary


Assetsus-gaap:
Period End2020-09-302020-06-302019-12-31
Value217227205
Percentage of Assets15.316.014.5
Percentage of Assets15.316.014.5
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary100.0100.0100.0

us-gaap:Assets us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bsig:AffiliatesAndFund


Assetsus-gaap:
Period End2020-12-312019-12-31
Value4.34.2
Percentage of Assets0.30.3
Percentage of Assets0.30.3
Percentage of Assets bsig:AffiliatesAndFund100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value88410069941145119012291221127913211377
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets50.670.172.180.883.786.486.089.392.788.7

us-gaap:Liabilities us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value4417427843324320
Percentage of Liabilities499.3425.0435.5353.8
Percentage of Assets252.6297.8314.1304.3
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary70.567.167.365.2

us-gaap:Liabilities us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2020-09-302020-06-302019-12-31
Value426042614320
Percentage of Liabilities371.8358.0353.8
Percentage of Assets300.6299.5304.3
Percentage of Assets us-gaap:VariableInterestEntityNotPrimaryBeneficiary66.666.365.2

us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilitiesus-gaap:
Period End2020-09-302020-06-302019-12-31
Value0.14.26.2
Percentage of Liabilities0.00.40.5
Percentage of Assets0.00.30.4
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary0.01.83.0

us-gaap:Liabilities us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

bsig:AffiliatesAndFund


Liabilitiesus-gaap:
Period End2020-12-312019-12-31
Value2.01.9
Percentage of Liabilities0.20.2
Percentage of Assets0.10.1
Percentage of Assets bsig:AffiliatesAndFund46.545.2

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1748143613791417142214231419143214251553
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities

us-gaap:CashAndCashEquivalentsAtCarryingValue

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value117545040112911512411111695340
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets67.231.429.19.28.18.77.88.16.721.9
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value117745240413012513112112410385345321281200102
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets67.331.529.39.28.89.28.58.77.20.022.20.00.00.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross us-gaap:ConsolidatedEntities

us-gaap:PropertyPlantAndEquipmentGross

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Property
Period End2020-12-312019-12-312018-12-31
Value170147130
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0
Percentage of Assets12.310.48.4
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.0

us-gaap:PropertyPlantAndEquipmentGross us-gaap:ConsolidatedEntities, us-gaap:PropertyPlantAndEquipmentByType

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:FurnitureAndFixtures


Property
Period End2020-12-312019-12-312018-12-31
Value129.08.9
Percentage of PropertyPlantAndEquipmentGross7.36.16.8
Percentage of Assets0.90.60.6
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds us-gaap:FurnitureAndFixtures0.00.00.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:LeaseholdImprovements


Property
Period End2020-12-312019-12-312018-12-31
Value363738
Percentage of PropertyPlantAndEquipmentGross21.325.229.1
Percentage of Assets2.62.62.4
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds us-gaap:LeaseholdImprovements0.00.00.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:OfficeEquipment


Property
Period End2020-12-312019-12-312018-12-31
Value202030
Percentage of PropertyPlantAndEquipmentGross12.213.623.0
Percentage of Assets1.51.41.9
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds us-gaap:OfficeEquipment0.00.00.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:SoftwareAndSoftwareDevelopmentCosts


Property
Period End2020-12-312019-12-312018-12-31
Value977850
Percentage of PropertyPlantAndEquipmentGross57.553.238.9
Percentage of Assets7.15.53.3
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds us-gaap:SoftwareAndSoftwareDevelopmentCosts0.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:ConsolidatedEntities

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Accumulated
Period End2020-12-312019-12-312018-12-31
Value988181
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0
Percentage of Assets7.25.85.3
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.0

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1600000.01600000.01900000.01600000.01700000.01600000.01700000.0
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.0

us-gaap:AmortizationOfIntangibleAssets us-gaap:ConsolidatedEntities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Amortization
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1600000.01600000.01900000.01600000.01700000.01600000.01700000.01600000.01700000.01600000.01700000.0
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet us-gaap:ConsolidatedEntities

us-gaap:PropertyPlantAndEquipmentNet

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value53627171706665635849
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.04.45.25.15.04.74.64.44.13.2
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.00.0

Investments In Affiliates Subsidiaries Associates And Joint Ventures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures


Investments
Period End2020-12-312019-12-312018-12-31
Value2000000.02000000.01900000.0
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures100.0100.0100.0
Percentage of Assets0.10.10.1

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:EquityMethodInvestee


Investments
Period End2020-12-312019-12-312018-12-31
Value2000000.02000000.01900000.0
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures100.0100.0100.0
Percentage of Assets0.10.10.1
Percentage of Assets us-gaap:EquityMethodInvestee0.00.00.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value182182258308308274274308308308
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.212.818.121.721.719.219.30.019.90.0

us-gaap:Goodwill us-gaap:ConsolidatedEntities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2034182182258258274274274274
Percentage of Goodwill0.00.0100.0100.0100.083.789.0100.0100.089.0
Percentage of Assets1.22.413.212.818.118.119.319.219.317.7
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.00.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

bsig:Alternatives


Goodwillus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value148148148153153148148153153153
Percentage of Goodwill81.381.357.449.649.653.953.949.649.649.6
Percentage of Assets10.710.510.410.810.810.310.40.09.90.0
Percentage of Assets bsig:Alternatives0.00.00.00.00.00.00.00.00.00.0

bsig:LiquidAlpha


Goodwillus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value131389133133106106133133133
Percentage of Goodwill7.57.534.843.243.238.738.743.243.243.2
Percentage of Assets1.01.06.39.49.47.47.50.08.60.0
Percentage of Assets bsig:LiquidAlpha0.00.00.00.00.00.00.00.00.00.0

bsig:QuantAndSolutions


Goodwillus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value20202022222020222222
Percentage of Goodwill11.111.17.97.27.27.47.47.27.27.2
Percentage of Assets1.51.41.41.61.61.41.40.01.40.0
Percentage of Assets bsig:QuantAndSolutions0.00.00.00.00.00.00.00.00.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill us-gaap:ConsolidatedEntities

us-gaap:IntangibleAssetsNetExcludingGoodwill

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value0.20.25860616365666871
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.04.24.24.34.54.64.74.84.6
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.00.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value5759606264
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0
Percentage of Assets4.24.24.34.44.5

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value57596062646567697077
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.00.00.00.00.00.0
Percentage of Assets4.24.24.34.44.54.64.70.04.60.0
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.0

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:DeferredTaxAssetsLiabilitiesNet


Deferred
Period End2020-12-312019-12-312018-12-31
Value170243270
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.0100.0
Percentage of Assets12.417.217.4

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-01-01
Value9310810537404344
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.67.67.42.72.83.00.0

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:ConsolidatedEntities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Operating
Period End2021-06-302021-03-312020-12-312019-12-31
Value67809037
Percentage of OperatingLeaseRightOfUseAsset0.00.00.0100.0
Percentage of Assets3.95.66.62.7
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.0

Equity Securities Fv Ni

us-gaap:EquitySecuritiesFvNi us-gaap:ConsolidatedEntities

us-gaap:EquitySecuritiesFvNi

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value9.3222129313744454643
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.51.61.52.12.22.63.13.23.32.8
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:FairValueInputsLevel1


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value9.3109.716212733353535
Percentage of EquitySecuritiesFvNi100.048.045.555.967.074.674.976.777.281.0
Percentage of Assets0.50.80.71.21.52.02.32.52.52.3
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds us-gaap:FairValueInputsLevel10.00.00.00.00.00.00.00.00.00.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:FairValueInputsLevel2


Equity
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value111113109.51110108.2
Percentage of EquitySecuritiesFvNi52.054.544.133.025.425.123.322.819.0
Percentage of Assets0.80.80.90.70.70.80.70.70.5
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds us-gaap:FairValueInputsLevel20.00.00.00.00.00.00.00.00.0

Other Assets

us-gaap:OtherAssets us-gaap:ConsolidatedEntities

us-gaap:OtherAssets

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value31315056605789929841
Percentage of OtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.82.23.74.04.34.16.36.56.92.7
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.00.0

us-gaap:VariableInterestEntityPrimaryBeneficiary


Other
Period End2020-12-312019-12-31
Value11485
Percentage of OtherAssets225.995.5
Percentage of Assets8.36.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary100.041.8

us-gaap:OtherAssets us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Other
Period End2020-09-302020-06-302019-12-31
Value10311785
Percentage of OtherAssets182.3193.795.5
Percentage of Assets7.38.36.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary47.451.741.8

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent us-gaap:ConsolidatedEntities

us-gaap:OtherAccruedLiabilitiesCurrent

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Other
Period End2020-12-312019-12-312018-12-31
Value700000.0700000.01700000.0
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0
Percentage of Assets0.10.00.1
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.0

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2020-12-312019-12-312018-12-31
Value400568393
Percentage of LongTermDebt100.0100.0100.0
Percentage of Assets29.040.125.3

us-gaap:LongTermDebt us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType

us-gaap:RevolvingCreditFacility, bsig:RevolvingCreditFacilityExpiringAugust222022, us-gaap:FairValueInputsLevel2, us-gaap:LineOfCredit


Long
Period End2021-06-30
Value53
Percentage of LongTermDebt0.0
Percentage of Assets3.1
Percentage of Assets us-gaap:RevolvingCreditFacility bsig:RevolvingCreditFacilityExpiringAugust222022 us-gaap:FairValueInputsLevel2 us-gaap:LineOfCredit0.0

us-gaap:LongTermDebt us-gaap:CreditFacility, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType

us-gaap:RevolvingCreditFacility, us-gaap:FairValueInputsLevel2, us-gaap:LineOfCredit


Long
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value5381801302201401752100.0
Percentage of LongTermDebt0.00.00.00.00.024.60.00.00.0
Percentage of Assets3.15.65.69.115.59.912.214.70.0
Percentage of Assets us-gaap:RevolvingCreditFacility us-gaap:FairValueInputsLevel2 us-gaap:LineOfCredit0.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType

bsig:SeniorNotes4.80due2026, us-gaap:FairValueInputsLevel2, us-gaap:SeniorNotes


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value272272272272272272272272272272
Percentage of LongTermDebt0.00.068.20.00.00.047.90.00.069.2
Percentage of Assets15.619.019.819.219.219.119.219.019.117.5
Percentage of Assets bsig:SeniorNotes4.80due2026 us-gaap:FairValueInputsLevel2 us-gaap:SeniorNotes0.00.00.00.00.00.00.00.00.00.0

bsig:SeniorNotes5.125due2031, us-gaap:FairValueInputsLevel2, us-gaap:SeniorNotes


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value121121121121121121121121121121
Percentage of LongTermDebt0.00.030.40.00.00.021.30.00.030.8
Percentage of Assets7.08.58.88.68.58.58.68.58.57.8
Percentage of Assets bsig:SeniorNotes5.125due2031 us-gaap:FairValueInputsLevel2 us-gaap:SeniorNotes0.00.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel2


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value394475394474545635568603628393
Percentage of LongTermDebt0.00.098.60.00.00.0100.00.00.0100.0
Percentage of Assets22.633.128.633.538.444.740.142.144.125.3
Percentage of Assets us-gaap:FairValueInputsLevel20.00.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType

us-gaap:FairValueInputsLevel2, bsig:ThirdPartyDebtArrangement


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value394474524613533
Percentage of LongTermDebt98.60.00.00.093.8
Percentage of Assets28.633.536.843.137.6
Percentage of Assets us-gaap:FairValueInputsLevel2 bsig:ThirdPartyDebtArrangement0.00.00.00.00.0

Minority Interest

us-gaap:MinorityInterest us-gaap:ConsolidatedEntities

us-gaap:MinorityInterest

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Minority
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value5.61.71.41.41.31.31.91.81.6
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.10.10.10.10.10.10.10.1
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.0

bsig:ConsolidatedFunds


Minority
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value938073784948403229
Percentage of MinorityInterest1673.24723.55214.35628.63776.93753.82110.51816.71831.2
Percentage of Assets6.55.85.25.53.43.42.82.31.9
Percentage of Assets bsig:ConsolidatedFunds0.00.00.00.00.00.00.00.00.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value8000000.09800000.09300000.09200000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0
Percentage of Assets0.50.70.70.6

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value7.59.11111
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0
Percentage of Assets0.40.60.80.8

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value7.69.21010
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0
Percentage of Assets0.40.60.80.7

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value10
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.8

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value77
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets5.6

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-01-01
Value799610711012411942454849
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.66.77.87.88.88.43.03.23.40.0

us-gaap:OperatingLeaseLiability us-gaap:ConsolidatedEntities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Operating
Period End2021-06-302021-03-312020-12-312019-12-31
Value799610742
Percentage of OperatingLeaseLiability100.0100.0100.0100.0
Percentage of Assets4.66.77.83.0
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value97118132135
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0
Percentage of Assets5.68.39.69.5

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value18212425
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets1.01.51.81.8

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value86343038418515211911470218.4134101149172127165
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets49.429.927.913.110.78.48.14.91.50.08.60.00.00.00.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:ShareholdersEquityDeficit


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value381-150.3-176.5-373.7-410.1-428.3-452.5-511.77.0-9.7124-652.811014296-699.8
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest44.2-35.0-45.9-201.1-268.7-359.0-395.2-722.732.1-115.592.5-644.474.283.076.1-424.1
Percentage of Assets21.8-10.5-12.8-26.4-28.8-30.1-31.9-35.70.50.08.00.00.00.00.00.0
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds bsig:ShareholdersEquityDeficit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:TotalParentEntityDeficit


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value86333030211172686428-12.7-29.4103998912275164
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.076.978.760.047.457.856.240.7-58.3-350.077.098.660.171.359.299.4
Percentage of Assets49.423.021.97.95.14.84.52.0-0.90.06.60.00.00.00.00.0
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds bsig:TotalParentEntityDeficit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value-11.2-11.9-13.6-16.2-18.2-19.1-17.5-20.0-19.8-19.8-20.9-21.0-21.2-20.2-21.6-26.3
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-1.3-2.8-3.5-8.7-11.9-16.0-15.3-28.2-90.8-235.7-15.6-20.7-14.2-11.7-17.0-15.9
Percentage of Assets-0.6-0.8-1.0-1.1-1.3-1.3-1.2-1.4-1.40.0-1.30.00.00.00.00.0
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value493492492501500516534560585587764773806831890
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest57.1114.6128.1269.8328.0432.7466.6791.52684.46991.7569.7763.7541.2653.2539.4
Percentage of Assets28.234.335.735.435.236.337.639.141.10.049.20.00.00.00.0
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:NoncontrollingInterest


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value5.61.71.41.41.31.31.91.81.81.61.41.41.41.31.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest1.30.40.80.91.11.12.78.321.41.21.40.90.81.00.6
Percentage of Assets0.40.10.10.10.10.10.10.10.00.10.00.00.00.00.0
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

bsig:ConsolidatedFunds, us-gaap:NoncontrollingInterest


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value938073784948403236290.05847500.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest21.820.939.351.641.242.656.6150.0428.621.80.039.027.839.70.0
Percentage of Assets6.55.85.25.53.43.42.82.30.01.90.00.00.00.00.0
Percentage of Assets bsig:ConsolidatedFunds us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value5.65.54.42.41.00.72.80.91.72.31.82.32.73.50.6
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.61.31.11.30.70.62.41.37.827.41.32.31.82.70.4
Percentage of Assets0.30.40.30.20.10.00.20.10.10.00.10.00.00.00.0
Percentage of Assets us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value-16.8-17.4-18.0-18.6-19.2-19.8-20.3-20.9-21.5-22.1-22.7-23.3-23.9-25.1-26.9
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-1.9-4.0-4.7-10.0-12.6-16.6-17.7-29.5-98.6-263.1-16.9-23.0-16.0-19.7-16.3
Percentage of Assets-1.0-1.2-1.3-1.3-1.3-1.4-1.4-1.5-1.50.0-1.50.00.00.00.0
Percentage of Assets us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value-11.2-11.9-13.6-16.2-18.2-19.1-17.5-20.0-19.8-19.8-20.9-21.0-21.2-20.2-21.6-26.3
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-1.3-2.8-3.5-8.7-11.9-16.0-15.3-28.2-90.8-235.7-15.6-20.7-14.2-11.7-17.0-15.9
Percentage of Assets-0.6-0.8-1.0-1.1-1.3-1.3-1.2-1.4-1.40.0-1.30.00.00.00.00.0
Percentage of Assets us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital us-gaap:ConsolidatedEntities

us-gaap:AdditionalPaidInCapital

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value493492492501500516534560764
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets28.234.335.735.435.236.337.639.149.2
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ConsolidatedEntities

us-gaap:RetainedEarningsAccumulatedDeficit

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value381-150.3-176.5-373.7-410.1-428.3-452.5-511.7-640.5
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.8-10.5-12.8-26.4-28.8-30.1-31.9-35.7-41.2
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:ConsolidatedEntities

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value-11200000.0-11900000.0-13600000.0-16200000.0-18200000.0-19100000.0-17500000.0-20000000.0-19800000.0-20900000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.6-0.8-1.0-1.1-1.3-1.3-1.2-1.4-1.4-1.3
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.00.0

Minority Interest

us-gaap:MinorityInterest us-gaap:ConsolidatedEntities

us-gaap:MinorityInterest

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Minority
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value5.61.71.41.41.31.31.91.81.6
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.10.10.10.10.10.10.10.1
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds0.00.00.00.00.00.00.00.00.0

bsig:ConsolidatedFunds


Minority
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value938073784948403229
Percentage of MinorityInterest1673.24723.55214.35628.63776.93753.82110.51816.71831.2
Percentage of Assets6.55.85.25.53.43.42.82.31.9
Percentage of Assets bsig:ConsolidatedFunds0.00.00.00.00.00.00.00.00.0

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2021-06-302020-12-312020-09-30
Value100000.00200000.0
Percentage of StockIssuedDuringPeriodValueNewIssues100.00.0100.0
Percentage of Assets0.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

bsig:TotalParentEntityDeficit


Stock
Period End2021-06-302020-09-30
Value100000.0200000.0
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0
Percentage of Assets0.00.0
Percentage of Assets bsig:TotalParentEntityDeficit0.00.0

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302020-09-30
Value100000.0200000.0
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0
Percentage of Assets0.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.0

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.50.40.50.40.51.11.10.71.23.23.51.31.6
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:TotalParentEntityDeficit


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.50.40.50.40.51.11.10.71.23.23.51.31.6
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds bsig:TotalParentEntityDeficit0.00.00.00.00.00.00.00.00.00.00.00.00.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.50.40.50.40.51.11.10.71.23.23.51.3
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets bsig:ConsolidatedEntityExcludingConsolidatedFunds us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value65-20.3-1.53095-33.5458127-292.55252
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax49.3-16.2-0.816.855.9-18.821.741.213.6-141.024.422.8

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value7212.8330-69.27.81.3171.5-5.9-4.4-1.2-31.4
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax541.02.2184.6-38.84.60.78.60.8-2.9-2.1-0.6-13.7

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-56.778-68.457-109.242-66.6-61.1-3.836-27.118
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-42.562.9-38.332.4-64.023.8-32.1-31.1-1.817.6-12.68.2

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value730612735.6-5.910-3.72118-260.42439
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax547.748.9152.83.1-3.55.7-1.810.98.8-125.511.217.4

Amortization Of Financing Costs

us-gaap:AmortizationOfFinancingCosts us-gaap:ConsolidatedEntities

us-gaap:AmortizationOfFinancingCosts

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1100000.01100000.01100000.01100000.01000000.01100000.01100000.0900000.0800000.0900000.0900000.0800000.0
Percentage of AmortizationOfFinancingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit us-gaap:ConsolidatedEntities

us-gaap:DeferredIncomeTaxExpenseBenefit

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-6.42.3426.40.922181.9-0.56.23.4-7.4
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization us-gaap:ConsolidatedEntities

us-gaap:DepreciationDepletionAndAmortization

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value5.75.65.45.25.15.35.04.44.03.83.93.73.5
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value65-20.3-1.53095-33.5458127-292.55252
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax49.3-16.2-0.816.855.9-18.821.741.213.6-141.024.422.8

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value532271983718327475286118542.154
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax399.621.5110.720.911.118.335.838.413.629.48.823.50.921.9

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value-11.7-20.9-18.1-22.3
Percentage of NetIncomeLoss-2.2-77.4-95.8-68.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-8.8-16.7-10.6-12.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment0.00.00.00.0

us-gaap:MaterialReconcilingItems


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value505-1.23.56.7
Percentage of NetIncomeLoss94.9-4.418.520.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax379.2-1.02.13.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bsig:LiquidAlphaDomain


Net
Period End2021-03-312020-06-302020-03-31
Value8.84.717
Percentage of NetIncomeLoss32.624.952.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.02.89.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bsig:LiquidAlphaDomain0.00.00.0

us-gaap:OperatingSegments, bsig:QuantSolutionsDomain


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value47402831
Percentage of NetIncomeLoss9.0149.3152.495.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.832.216.917.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments bsig:QuantSolutionsDomain0.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments

bsig:AlternativesDomain


Net
Period End2020-09-302020-06-302019-09-302019-06-30
Value11108.511
Percentage of NetIncomeLoss29.854.011.342.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.26.04.35.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:AlternativesDomain0.00.00.00.0

bsig:LiquidAlphaDomain


Net
Period End2020-09-302020-06-302019-09-302019-06-30
Value17152525
Percentage of NetIncomeLoss46.283.133.289.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.79.212.712.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:LiquidAlphaDomain0.00.00.00.0

bsig:QuantSolutionsDomain


Net
Period End2021-06-302020-09-302020-06-302019-09-302019-06-30
Value4733283232
Percentage of NetIncomeLoss9.088.7152.442.4115.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.818.516.916.315.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax bsig:QuantSolutionsDomain0.00.00.00.00.0

us-gaap:AllOtherSegments


Net
Period End2021-06-302020-09-302020-06-302019-09-302019-06-30
Value-14.8-23.6-21.8-28.1-28.4
Percentage of NetIncomeLoss-2.8-63.4-115.3-37.3-101.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-11.1-13.2-12.8-14.3-13.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AllOtherSegments0.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:SubsegmentsConsolidationItems

us-gaap:MaterialReconcilingItems


Net
Period End2021-06-302020-09-302020-06-302019-09-302019-06-30
Value499-0.5-14.038-13.0
Percentage of NetIncomeLoss93.8-1.3-74.150.4-46.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax374.9-0.3-8.219.3-6.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:MaterialReconcilingItems0.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value587402053453227483216118542.5
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax440.632.2114.919.131.612.435.842.310.529.48.823.61.1

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value7212.8330-69.27.81.3171.5-5.9-4.4-1.2-31.4
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax541.02.2184.6-38.84.60.78.60.8-2.9-2.1-0.6-13.7

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment us-gaap:ConsolidatedEntities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value3.93.54.76.89.46.37.29.69.87.37.26.5
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments To Acquire Investments

us-gaap:PaymentsToAcquireInvestments us-gaap:ConsolidatedEntities

us-gaap:PaymentsToAcquireInvestments

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-0.22.75.33.45.74.8-134.6341197.0-74.1105
Percentage of PaymentsToAcquireInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:ConsolidatedFunds


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-94.0522125-148.5349332
Percentage of PaymentsToAcquireInvestments-1773.61532.4368.4522.9110.3100.078.5467.1

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-56.778-68.457-109.242-66.6-61.1-3.836-27.118
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-42.562.9-38.332.4-64.023.8-32.1-31.1-1.817.6-12.68.2

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt us-gaap:ConsolidatedEntities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Proceeds
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value37950.00.080220252400.0
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.00.00.0100.0100.0100.0100.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt us-gaap:ConsolidatedEntities

us-gaap:RepaymentsOfLongTermDebt

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Repayments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value6414719013245255.00.0
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.00.0

Payments Of Dividends

us-gaap:PaymentsOfDividends us-gaap:ConsolidatedEntities

us-gaap:PaymentsOfDividends

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.50.60.50.40.55.85.75.07.46.47.87.9
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Dividends

us-gaap:Dividends

us-gaap:Dividends


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.80.80.80.80.78.48.68.99.29.2101011
Percentage of Dividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Dividends us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:ShareholdersEquityDeficit


Dividendsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.80.80.80.80.78.48.68.99.29.2101011
Percentage of Dividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:TotalParentEntityDeficit


Dividendsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.80.80.80.80.78.48.68.99.29.2101011
Percentage of Dividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock us-gaap:ConsolidatedEntities

us-gaap:PaymentsForRepurchaseOfCommonStock

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value100.0181727253.31839.134
Percentage of PaymentsForRepurchaseOfCommonStock100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-31
Value11.3812.012.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value3.611468891
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0

bsig:AdjustmentsToAdditionalPaidInCapitalInPermanentAndTemporaryEquitiesSharebasedCompensationRequisiteServicePeriodRecognitionValue

bsig:AdjustmentsToAdditionalPaidInCapitalInPermanentAndTemporaryEquitiesSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.50.40.40.51.11.10.71.23.23.51.31.6
Percentage of AdjustmentsToAdditionalPaidInCapitalInPermanentAndTemporaryEquitiesSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:AffiliateKeyEmployeeDistributions

bsig:AffiliateKeyEmployeeDistributions


Affiliate
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value3.23.99.711119.85.31213131320
Percentage of AffiliateKeyEmployeeDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:AffiliateKeyEmployeeDistributions us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Affiliate
Period End2021-06-302021-03-31
Value0.1-0.2
Percentage of AffiliateKeyEmployeeDistributions3.1-5.1

bsig:AffiliateKeyEmployeeDistributions us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bsig:LiquidAlphaDomain


Affiliate
Period End2021-03-312020-06-302020-03-31
Value2.6-0.83.2
Percentage of AffiliateKeyEmployeeDistributions66.7-7.332.7

us-gaap:OperatingSegments, bsig:QuantSolutionsDomain


Affiliate
Period End2021-06-302021-03-312020-06-302020-03-31
Value3.11.51.30.8
Percentage of AffiliateKeyEmployeeDistributions96.938.511.88.2

bsig:AffiliateKeyEmployeeDistributions us-gaap:StatementBusinessSegments

bsig:AlternativesDomain


Affiliate
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value7.36.95.85.06.45.710
Percentage of AffiliateKeyEmployeeDistributions66.462.759.239.746.442.549.3

bsig:LiquidAlphaDomain


Affiliate
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2.92.83.25.16.15.86.77.08.0
Percentage of AffiliateKeyEmployeeDistributions26.425.532.796.248.442.050.051.139.0

bsig:QuantSolutionsDomain


Affiliate
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value3.10.81.30.81.51.61.02.4
Percentage of AffiliateKeyEmployeeDistributions96.97.311.88.211.911.67.511.7

us-gaap:AllOtherSegments


Affiliate
Period End2021-06-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value0.10.00.00.00.00.00.0
Percentage of AffiliateKeyEmployeeDistributions3.10.00.00.00.00.00.0

bsig:AmortizationAndRevaluationOfNonCashCompensationAwards us-gaap:ConsolidatedEntities

bsig:AmortizationAndRevaluationOfNonCashCompensationAwards

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value8.05.3121016-44.0-19.75.113-12.73256
Percentage of AmortizationAndRevaluationOfNonCashCompensationAwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:AmortizationOfIntangibleAssetsIncludingDiscontinuedOperations us-gaap:FiniteLivedIntangibleAssetsByMajorClass

bsig:AmortizationOfIntangibleAssetsIncludingDiscontinuedOperations

us-gaap:CustomerRelationships


Amortization
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1600000.01600000.01900000.01600000.01700000.01600000.01700000.01600000.0
Percentage of AmortizationOfIntangibleAssetsIncludingDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0100.0

bsig:CapitalContributionsRedemptions

bsig:CapitalContributionsRedemptions


Capital
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-29.7-3.8-0.3-0.90.2-14.10.9-4.00.0-18.60.1-9.3
Percentage of CapitalContributionsRedemptions100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

bsig:CapitalContributionsRedemptions us-gaap:ConsolidatedEntities

bsig:ConsolidatedFunds


Capital
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-129.70.81.2-1.0-37.7-0.464
Percentage of CapitalContributionsRedemptions43233.3-88.9600.0-111.1942.50.064200.0

bsig:CapitalContributionsRedemptions us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:NoncontrollingInterest


Capital
Period End2021-06-302021-03-31
Value0.0-3.8
Percentage of CapitalContributionsRedemptions-0.0100.0

bsig:ConsolidatedFunds, us-gaap:NoncontrollingInterest


Capital
Period End2021-06-302020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-29.7-0.3-0.90.2-14.10.9-4.00.0-18.618-9.3
Percentage of CapitalContributionsRedemptions100.0100.0100.0100.0100.0100.0100.00.0100.018600.0100.0

bsig:CapitalContributionsRedemptionsinPermanentandTemporaryEquities

bsig:CapitalContributionsRedemptionsinPermanentandTemporaryEquities


Capital
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-29.7-3.8-130.0-0.11.4-86.6-0.1-41.7-0.4-165.564-13.0
Percentage of CapitalContributionsRedemptionsinPermanentandTemporaryEquities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:DisposalGroupIncludingDiscontinuedOperationAmortizationAndImpairmentOfIntangibleAssets

bsig:DisposalGroupIncludingDiscontinuedOperationAmortizationAndImpairmentOfIntangibleAssets


Disposal
Period End2021-06-302020-06-30
Value1100000.01600000.0
Percentage of DisposalGroupIncludingDiscontinuedOperationAmortizationAndImpairmentOfIntangibleAssets100.0100.0

bsig:DisposalGroupIncludingDiscontinuedOperationCompensationAndBenefits

bsig:DisposalGroupIncludingDiscontinuedOperationCompensationAndBenefits


Disposal
Period End2021-06-302020-06-30
Value4349
Percentage of DisposalGroupIncludingDiscontinuedOperationCompensationAndBenefits100.0100.0

bsig:DisposalGroupIncludingDiscontinuedOperationCompensationAndBenefits us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-03-312020-03-31
Value288.0
Percentage of DisposalGroupIncludingDiscontinuedOperationCompensationAndBenefits0.00.0

bsig:DisposalGroupIncludingDiscontinuedOperationDepreciation

bsig:DisposalGroupIncludingDiscontinuedOperationDepreciation


Disposal
Period End2021-06-302020-06-30
Value200000.0400000.0
Percentage of DisposalGroupIncludingDiscontinuedOperationDepreciation100.0100.0

bsig:DisposalGroupIncludingDiscontinuedOperationGainLossOnInvestment

bsig:DisposalGroupIncludingDiscontinuedOperationGainLossOnInvestment


Disposal
Period End2021-06-302020-06-30
Value5128
Percentage of DisposalGroupIncludingDiscontinuedOperationGainLossOnInvestment100.0100.0

bsig:DisposalGroupIncludingDiscontinuedOperationGainLossOnInvestment us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-03-31
Value16
Percentage of DisposalGroupIncludingDiscontinuedOperationGainLossOnInvestment0.0

bsig:DistributionsFromDiscontinuedOperations

bsig:DistributionsFromDiscontinuedOperations


Distributions
Period End2021-03-312020-03-31
Value1211
Percentage of DistributionsFromDiscontinuedOperations100.0100.0

bsig:DividendsRedemptionsInPermanentAndTemporaryEquities

bsig:DividendsRedemptionsInPermanentAndTemporaryEquities


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.80.80.80.80.78.48.68.99.29.2101011
Percentage of DividendsRedemptionsInPermanentAndTemporaryEquities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:ENIOperatingExpenses

bsig:ENIOperatingExpenses


E
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value61618786905264899773117139
Percentage of ENIOperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:ENIOperatingExpenses us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


E
Period End2021-06-302021-03-312020-06-302020-03-31
Value9.69.61112
Percentage of ENIOperatingExpenses15.715.512.224.5

us-gaap:MaterialReconcilingItems


E
Period End2021-06-302021-03-312020-06-302020-03-31
Value106.37.7-9.9
Percentage of ENIOperatingExpenses16.810.28.5-18.8

bsig:ENIOperatingExpenses us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bsig:LiquidAlphaDomain


E
Period End2021-03-312020-06-302020-03-31
Value6.84.919
Percentage of ENIOperatingExpenses11.05.437.6

us-gaap:OperatingSegments, bsig:QuantSolutionsDomain


E
Period End2021-06-302021-03-312020-06-302020-03-31
Value38393537
Percentage of ENIOperatingExpenses62.563.338.770.5

bsig:ENIOperatingExpenses us-gaap:StatementBusinessSegments

bsig:AlternativesDomain


E
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value15151616151715
Percentage of ENIOperatingExpenses17.717.431.618.016.024.211.1

bsig:LiquidAlphaDomain


E
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value151719181819212021
Percentage of ENIOperatingExpenses17.919.237.629.120.720.429.517.315.1

bsig:QuantSolutionsDomain


E
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value3837353740393937
Percentage of ENIOperatingExpenses62.543.138.770.545.740.654.627.0

us-gaap:AllOtherSegments


E
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value9.55.85.97.78.37.89.39.6
Percentage of ENIOperatingExpenses15.56.76.514.69.38.012.76.9

bsig:ENIOperatingExpenses us-gaap:SubsegmentsConsolidationItems

us-gaap:MaterialReconcilingItems


E
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value131216-28.65.514-15.455
Percentage of ENIOperatingExpenses22.014.618.1-54.46.215.0-21.139.9

bsig:EarningsAfterKeyEmployeeDistributions

bsig:EarningsAfterKeyEmployeeDistributions


Earnings
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value363740267451466813
Percentage of EarningsAfterKeyEmployeeDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:EarningsAfterKeyEmployeeDistributions us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Earnings
Period End2021-06-302021-03-312020-06-302020-03-31
Value3.3-5.1-5.900000000000001-8.2
Percentage of EarningsAfterKeyEmployeeDistributions9.1-13.7-22.5-11.1

us-gaap:MaterialReconcilingItems


Earnings
Period End2021-06-302021-03-312020-06-302020-03-31
Value-10.7-6.9-8.511
Percentage of EarningsAfterKeyEmployeeDistributions-29.6-18.6-32.415.5

bsig:EarningsAfterKeyEmployeeDistributions us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bsig:LiquidAlphaDomain


Earnings
Period End2021-03-312020-06-302020-03-31
Value8.84.717
Percentage of EarningsAfterKeyEmployeeDistributions23.717.922.9

us-gaap:OperatingSegments, bsig:QuantSolutionsDomain


Earnings
Period End2021-06-302021-03-312020-06-302020-03-31
Value47402831
Percentage of EarningsAfterKeyEmployeeDistributions132.1108.6109.942.1

bsig:EarningsAfterKeyEmployeeDistributions us-gaap:StatementBusinessSegments

bsig:AlternativesDomain


Earnings
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value1110108.5111014
Percentage of EarningsAfterKeyEmployeeDistributions27.438.913.916.425.515.9110.5

bsig:LiquidAlphaDomain


Earnings
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value171517222525262629
Percentage of EarningsAfterKeyEmployeeDistributions42.559.922.90.048.253.938.20.0220.3

bsig:QuantSolutionsDomain


Earnings
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value4733283132323036
Percentage of EarningsAfterKeyEmployeeDistributions132.181.5109.942.161.769.545.3270.7

us-gaap:AllOtherSegments


Earnings
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value2.3-6.5-6.6-8.6-10.1-10.0-12.5-12.7
Percentage of EarningsAfterKeyEmployeeDistributions6.4-16.0-25.2-11.6-19.5-21.5-18.4-95.5

bsig:EarningsAfterKeyEmployeeDistributions us-gaap:SubsegmentsConsolidationItems

us-gaap:MaterialReconcilingItems


Earnings
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-13.9-14.3-21.924-3.5-12.812-54.0
Percentage of EarningsAfterKeyEmployeeDistributions-38.5-35.3-83.632.7-6.7-27.519.0-406.0

bsig:EarningsBeforeVariableCompensation

bsig:EarningsBeforeVariableCompensation


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value72699196841301421081091349691
Percentage of EarningsBeforeVariableCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:EarningsBeforeVariableCompensation us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Earnings
Period End2021-06-302021-03-312020-06-302020-03-31
Value13-4.4-4.2-6.8
Percentage of EarningsBeforeVariableCompensation19.2-6.3-5.0-5.2

us-gaap:MaterialReconcilingItems


Earnings
Period End2021-06-302021-03-312020-06-302020-03-31
Value-10.4-6.4-5.511
Percentage of EarningsBeforeVariableCompensation-14.4-9.2-6.59.2

bsig:EarningsBeforeVariableCompensation us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bsig:LiquidAlphaDomain


Earnings
Period End2021-03-312020-06-302020-03-31
Value157.79999999999999632
Percentage of EarningsBeforeVariableCompensation22.89.325.2

us-gaap:OperatingSegments, bsig:QuantSolutionsDomain


Earnings
Period End2021-06-302021-03-312020-06-302020-03-31
Value72644749
Percentage of EarningsBeforeVariableCompensation101.192.856.737.7

bsig:EarningsBeforeVariableCompensation us-gaap:StatementBusinessSegments

bsig:AlternativesDomain


Earnings
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value28262521282639
Percentage of EarningsBeforeVariableCompensation29.731.819.519.626.219.643.0

bsig:LiquidAlphaDomain


Earnings
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value322932424646494955
Percentage of EarningsBeforeVariableCompensation33.835.225.229.643.042.636.951.261.4

bsig:QuantSolutionsDomain


Earnings
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value7251474952545059
Percentage of EarningsBeforeVariableCompensation101.154.056.737.748.249.437.765.4

us-gaap:AllOtherSegments


Earnings
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value12-5.7-5.8-7.6-8.2-7.7-9.2-9.5
Percentage of EarningsBeforeVariableCompensation17.8-5.9-6.9-5.8-7.6-7.0-6.9-10.4

bsig:EarningsBeforeVariableCompensation us-gaap:SubsegmentsConsolidationItems

us-gaap:MaterialReconcilingItems


Earnings
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-13.6-11.0-14.230-3.5-12.216-54.0
Percentage of EarningsBeforeVariableCompensation-18.9-11.5-16.823.5-3.2-11.212.6-59.3

bsig:FiniteLivedIntangibleAssetsGrossWrittenOffRelatedToSaleOfBusinessUnit us-gaap:DisposalGroupClassification, us-gaap:FiniteLivedIntangibleAssetsByMajorClass, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:FiniteLivedIntangibleAssetsGrossWrittenOffRelatedToSaleOfBusinessUnit

us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, us-gaap:CustomerRelationships, bsig:BarrowHanleyMewhinneyStraussLLC


Finite
Period End2020-11-30
Value20
Percentage of FiniteLivedIntangibleAssetsGrossWrittenOffRelatedToSaleOfBusinessUnit100.0

us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, us-gaap:CustomerRelationships, bsig:CopperRockCapitalPartnersLLC


Finite
Period End2020-07-31
Value2.3
Percentage of FiniteLivedIntangibleAssetsGrossWrittenOffRelatedToSaleOfBusinessUnit0.0

bsig:IncomeLossFromEquityAccountedInvestmentInAffiliate us-gaap:ConsolidatedEntities

bsig:IncomeLossFromEquityAccountedInvestmentInAffiliate

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value1300000.01100000.0600000.0600000.0
Percentage of IncomeLossFromEquityAccountedInvestmentInAffiliate100.0100.0100.0100.0

bsig:IncreaseDecreaseInAccountsPayableAndAccrualsAndAccruedIncomeTaxes us-gaap:ConsolidatedEntities

bsig:IncreaseDecreaseInAccountsPayableAndAccrualsAndAccruedIncomeTaxes

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-10.5-10.13.7-2.09.0-16.24.0-44.07.2-17.32.2-48.1
Percentage of IncreaseDecreaseInAccountsPayableAndAccrualsAndAccruedIncomeTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:IncreaseDecreaseInOtherReceivablesPrepaymentsDepositsAndOtherAssets us-gaap:ConsolidatedEntities

bsig:IncreaseDecreaseInOtherReceivablesPrepaymentsDepositsAndOtherAssets

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1.2-10.9-20.4-10.4-5.21815-3.35.56.6-3.08.1
Percentage of IncreaseDecreaseInOtherReceivablesPrepaymentsDepositsAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:IncreaseDecreaseInReceivablesOtherAssets us-gaap:ConsolidatedEntities

bsig:IncreaseDecreaseInReceivablesOtherAssets

bsig:ConsolidatedFunds


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value3.500000000000003628-3.74.4-2.70.6-3.1-2.39.43.4
Percentage of IncreaseDecreaseInReceivablesOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:IncreaseDecreaseinAccruedIncentiveCompensationOtherAmountsDuetoRelatedPartiesandOtherLongTermLiabilities us-gaap:ConsolidatedEntities

bsig:IncreaseDecreaseinAccruedIncentiveCompensationOtherAmountsDuetoRelatedPartiesandOtherLongTermLiabilities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Increase
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value36-58.33430-70.3-2.12430-316.9-20.245
Percentage of IncreaseDecreaseinAccruedIncentiveCompensationOtherAmountsDuetoRelatedPartiesandOtherLongTermLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:IncreaseDecreaseinInvestmentAdvisoryFeesReceivableandRelatedPartyReceivables us-gaap:ConsolidatedEntities

bsig:IncreaseDecreaseinInvestmentAdvisoryFeesReceivableandRelatedPartyReceivables

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value238.112-0.4-8.7-17.15.1-9.95.4-7.7-27.3-12.3
Percentage of IncreaseDecreaseinInvestmentAdvisoryFeesReceivableandRelatedPartyReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:InvestmentFairValueDisclosurePercentageofInvestmentHeldinCash us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel

bsig:InvestmentFairValueDisclosurePercentageofInvestmentHeldinCash

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:FairValueInputsLevel1


Investment
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value1.09.01.98-0.280.3-0.060.01
Percentage of InvestmentFairValueDisclosurePercentageofInvestmentHeldinCash100.0100.0100.0100.0100.0100.0100.0

bsig:InvestmentFairValueDisclosurePercentageofInvestmentHeldinEquitySecurities us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel

bsig:InvestmentFairValueDisclosurePercentageofInvestmentHeldinEquitySecurities

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:FairValueInputsLevel1


Investment
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value99.0-9.097.020.280.70.06-0.01
Percentage of InvestmentFairValueDisclosurePercentageofInvestmentHeldinEquitySecurities100.0100.0100.0100.0100.0100.0100.0

bsig:MaximumRatioOfThirdPartyBorrowingsToTrailingTwelveMonthsAdjustedEBITDA us-gaap:ConsolidatedEntities, us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

bsig:MaximumRatioOfThirdPartyBorrowingsToTrailingTwelveMonthsAdjustedEBITDA

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:RevolvingCreditFacility, bsig:AcadianCreditAgreementMaturingOnAugust222022, us-gaap:LineOfCredit, us-gaap:SubsequentEvent


Maximum
Period End2021-02-23
Value2.5
Percentage of MaximumRatioOfThirdPartyBorrowingsToTrailingTwelveMonthsAdjustedEBITDA100.0

bsig:NetIncomeLossAvailabletoCommonStockholdersNetofParticipatingUnvestedSecurities

bsig:NetIncomeLossAvailabletoCommonStockholdersNetofParticipatingUnvestedSecurities


Net
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value5321973718326775285223532.1
Percentage of NetIncomeLossAvailabletoCommonStockholdersNetofParticipatingUnvestedSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestBeforeAllocationToTemporaryEquities

bsig:NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestBeforeAllocationToTemporaryEquities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value587402033147327281205923543.0
Percentage of NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestBeforeAllocationToTemporaryEquities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestBeforeAllocationToTemporaryEquities us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:ShareholdersEquityDeficit


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value532271983718326775285223542.1
Percentage of NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestBeforeAllocationToTemporaryEquities90.766.897.2119.639.699.793.992.1135.388.7100.0100.070.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:TotalParentEntityDeficit


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value532271983718326775285223542.1
Percentage of NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestBeforeAllocationToTemporaryEquities90.766.897.2119.639.699.793.992.1135.388.7100.0100.070.0

bsig:ConsolidatedFunds, us-gaap:NoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value54135.6-6.1280.14.46.5-7.36.70.00.00.9
Percentage of NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestBeforeAllocationToTemporaryEquities9.333.22.8-19.660.40.36.17.9-35.311.30.00.030.0

bsig:OCIDebtSecuritiesAvailableForSaleGainLossAfterAdjustmentAndTaxAmortization

bsig:OCIDebtSecuritiesAvailableForSaleGainLossAfterAdjustmentAndTaxAmortization


O
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value600000.0600000.0600000.0600000.0600000.0500000.0600000.0600000.0600000.0
Percentage of OCIDebtSecuritiesAvailableForSaleGainLossAfterAdjustmentAndTaxAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:OperatingEarningsAfterVariableCompensation

bsig:OperatingEarningsAfterVariableCompensation


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value394148513783896460814333
Percentage of OperatingEarningsAfterVariableCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:OperatingEarningsAfterVariableCompensation us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Operating
Period End2021-06-302021-03-312020-06-302020-03-31
Value3.4-5.3-5.700000000000001-8.2
Percentage of OperatingEarningsAfterVariableCompensation8.7-12.9-15.3-9.8

us-gaap:MaterialReconcilingItems


Operating
Period End2021-06-302021-03-312020-06-302020-03-31
Value-10.7-6.9-8.511
Percentage of OperatingEarningsAfterVariableCompensation-27.2-16.8-22.813.7

bsig:OperatingEarningsAfterVariableCompensation us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bsig:LiquidAlphaDomain


Operating
Period End2021-03-312020-06-302020-03-31
Value113.920
Percentage of OperatingEarningsAfterVariableCompensation27.810.524.1

us-gaap:OperatingSegments, bsig:QuantSolutionsDomain


Operating
Period End2021-06-302021-03-312020-06-302020-03-31
Value50413032
Percentage of OperatingEarningsAfterVariableCompensation129.3102.080.938.1

bsig:OperatingEarningsAfterVariableCompensation us-gaap:StatementBusinessSegments

bsig:AlternativesDomain


Operating
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value18171613181624
Percentage of OperatingEarningsAfterVariableCompensation35.746.019.220.930.320.373.4

bsig:LiquidAlphaDomain


Operating
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value201820273130323337
Percentage of OperatingEarningsAfterVariableCompensation39.049.724.131.348.251.240.278.3110.4

bsig:QuantSolutionsDomain


Operating
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value5033303233343138
Percentage of OperatingEarningsAfterVariableCompensation129.365.680.938.151.956.339.1113.6

us-gaap:AllOtherSegments


Operating
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value2.4-6.5-6.6-8.6-10.1-10.0-12.5-12.7
Percentage of OperatingEarningsAfterVariableCompensation6.1-12.6-17.7-10.3-15.7-16.6-15.4-37.6

bsig:OperatingEarningsAfterVariableCompensation us-gaap:SubsegmentsConsolidationItems

us-gaap:MaterialReconcilingItems


Operating
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-13.9-14.3-21.924-3.5-12.812-54.0
Percentage of OperatingEarningsAfterVariableCompensation-35.4-27.8-58.928.8-5.4-21.215.8-159.8

bsig:OtherComprehensiveIncomeLossInPermanentAndTemporaryEquitiesForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

bsig:OtherComprehensiveIncomeLossInPermanentAndTemporaryEquitiesForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value100000.01100000.02000000.01400000.0300000.0-2100000.01900000.0-800000.0-600000.0500000.0-500000.0-400000.0-1600000.0
Percentage of OtherComprehensiveIncomeLossInPermanentAndTemporaryEquitiesForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:OtherIncomeFromExpenseReimbursement

bsig:OtherIncomeFromExpenseReimbursement


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-30
Value1200000.01000000.01100000.01100000.01100000.0900000.0
Percentage of OtherIncomeFromExpenseReimbursement100.0100.0100.0100.0100.0100.0

bsig:PaymentsforContributionstoEquityMethodInvestees us-gaap:ConsolidatedEntities

bsig:PaymentsforContributionstoEquityMethodInvestees

bsig:ConsolidatedFunds


Paymentsfor
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value600000.01000000.0300000.01100000.06900000.00
Percentage of PaymentsforContributionstoEquityMethodInvestees100.0100.0100.0100.0100.00.0

bsig:PaymentsforNoncontrollingInterestCapitalRedeemed us-gaap:ConsolidatedEntities

bsig:PaymentsforNoncontrollingInterestCapitalRedeemed

bsig:ConsolidatedFunds


Paymentsfor
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value100000.0400000.0-100000.0100000.03000000.00
Percentage of PaymentsforNoncontrollingInterestCapitalRedeemed100.0100.0100.0100.0100.00.0

bsig:PaymenttoFormerParentforRedemptionofCoinvestments us-gaap:ConsolidatedEntities

bsig:PaymenttoFormerParentforRedemptionofCoinvestments

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Paymentto
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value01300000.00300000.00005100000.00
Percentage of PaymenttoFormerParentforRedemptionofCoinvestments0.0100.00.0100.00.00.00.0100.00.0

bsig:PermanentAndTemporaryEquitiesNoncontrollingInterestDecreaseFromFundDeconsolidation

bsig:PermanentAndTemporaryEquitiesNoncontrollingInterestDecreaseFromFundDeconsolidation


Permanent
Period End2021-06-302020-09-30
Value178126
Percentage of PermanentAndTemporaryEquitiesNoncontrollingInterestDecreaseFromFundDeconsolidation100.0100.0

bsig:PermanentAndTemporaryEquitiesNoncontrollingInterestDecreaseFromFundDeconsolidation us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

bsig:ConsolidatedFunds, us-gaap:NoncontrollingInterest


Permanent
Period End2021-06-30
Value178
Percentage of PermanentAndTemporaryEquitiesNoncontrollingInterestDecreaseFromFundDeconsolidation100.0

bsig:ProceedsfromEquityMethodInvestmentDistributionAndSale us-gaap:ConsolidatedEntities

bsig:ProceedsfromEquityMethodInvestmentDistributionAndSale

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Proceedsfrom
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value1.81.10.71.30.21.21.10.010
Percentage of ProceedsfromEquityMethodInvestmentDistributionAndSale100.0100.0100.0100.0100.0100.0100.00.0100.0

bsig:ProceedsfromRedeemableNoncontrollingInterestCapitalRaised us-gaap:ConsolidatedEntities

bsig:ProceedsfromRedeemableNoncontrollingInterestCapitalRaised

bsig:ConsolidatedFunds


Proceedsfrom
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value21129-0.21.4-0.10.2370.3880.0
Percentage of ProceedsfromRedeemableNoncontrollingInterestCapitalRaised100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

bsig:ProfitLossPermanentAndTemporaryEquities

bsig:ProfitLossPermanentAndTemporaryEquities


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value587402053353227483216118542.5
Percentage of ProfitLossPermanentAndTemporaryEquities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:RedemptionOfRedeemableNonControllingInterestCapital us-gaap:ConsolidatedEntities

bsig:RedemptionOfRedeemableNonControllingInterestCapital

bsig:ConsolidatedFunds


Redemption
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value300000.0800000.001200000.0100000.0400000.0400000.0
Percentage of RedemptionOfRedeemableNonControllingInterestCapital100.0100.00.0100.0100.0100.0100.0

bsig:SaleOfInvestmentSecuritiesandOtherInvestmentSecuritiesActivity us-gaap:ConsolidatedEntities

bsig:SaleOfInvestmentSecuritiesandOtherInvestmentSecuritiesActivity

bsig:ConsolidatedFunds


Sale
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value212322345928
Percentage of SaleOfInvestmentSecuritiesandOtherInvestmentSecuritiesActivity100.0100.0100.0100.0100.0100.0

bsig:StockIssuedDuringPeriodValueNewIssuesPermanentAndTemporaryEquities

bsig:StockIssuedDuringPeriodValueNewIssuesPermanentAndTemporaryEquities


Stock
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302018-12-312018-09-30
Value100000.00200000.000000
Percentage of StockIssuedDuringPeriodValueNewIssuesPermanentAndTemporaryEquities100.00.0100.00.00.00.00.00.0

bsig:StockRepurchasedDuringPeriodValuePermanentandTemporaryEquities

bsig:StockRepurchasedDuringPeriodValuePermanentandTemporaryEquities


Stock
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value100.0161927253.3180123424
Percentage of StockRepurchasedDuringPeriodValuePermanentandTemporaryEquities100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:TemporaryEquityNoncontrollingInterestDecreaseFromFundDeconsolidation us-gaap:ConsolidatedEntities

bsig:TemporaryEquityNoncontrollingInterestDecreaseFromFundDeconsolidation

bsig:ConsolidatedFunds


Temporary
Period End2020-09-30
Value126
Percentage of TemporaryEquityNoncontrollingInterestDecreaseFromFundDeconsolidation100.0

bsig:VariableCompensation

bsig:VariableCompensation


Variable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value322843444746534449525357
Percentage of VariableCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:VariableCompensation us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Variable
Period End2021-06-302021-03-312020-06-302020-03-31
Value100.91.51.4
Percentage of VariableCompensation31.83.23.23.0

us-gaap:MaterialReconcilingItems


Variable
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.30.53.00.4
Percentage of VariableCompensation0.91.86.40.9

bsig:VariableCompensation us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, bsig:LiquidAlphaDomain


Variable
Period End2021-03-312020-06-302020-03-31
Value4.43.89999999999999812
Percentage of VariableCompensation15.58.327.1

us-gaap:OperatingSegments, bsig:QuantSolutionsDomain


Variable
Period End2021-06-302021-03-312020-06-302020-03-31
Value22221717
Percentage of VariableCompensation67.379.637.636.9

bsig:VariableCompensation us-gaap:StatementBusinessSegments

bsig:AlternativesDomain


Variable
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value109.79.27.8109.814
Percentage of VariableCompensation22.720.620.017.721.218.625.0

bsig:LiquidAlphaDomain


Variable
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value121112141515161518
Percentage of VariableCompensation27.623.827.126.735.432.031.929.332.5

bsig:QuantSolutionsDomain


Variable
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value2218171718201821
Percentage of VariableCompensation67.340.437.636.942.640.835.736.9

us-gaap:AllOtherSegments


Variable
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value100.80.81.01.92.33.33.2
Percentage of VariableCompensation31.81.81.72.24.34.76.35.6

bsig:VariableCompensation us-gaap:SubsegmentsConsolidationItems

us-gaap:MaterialReconcilingItems


Variable
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value0.33.37.76.40.00.64.00.0
Percentage of VariableCompensation0.97.416.313.90.01.27.60.0

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths us-gaap:IncomeStatementLocation

us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths

us-gaap:InterestExpense


Cash
Period End2021-06-302021-03-312020-12-31
Value0-3400000.06600000.0
Percentage of CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths0.0100.0100.0

us-gaap:CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations

us-gaap:CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations


Cash
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-28800000.0400000.000000000
Percentage of CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations100.0100.00.00.00.00.00.00.00.00.0

us-gaap:CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations

us-gaap:CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations


Cash
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value9.91.80.00.00.00.00.00.00.00.0
Percentage of CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations100.0100.00.00.00.00.00.00.00.00.0

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations

us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations


Cash
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-1500000.0-100000.00000000100000.0
Percentage of CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations100.0100.00.00.00.00.00.00.00.0100.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:ConsolidatedEntities, us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType, us-gaap:VariableRate

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:RevolvingCreditFacility, bsig:AcadianCreditAgreementMaturingOnAugust222022, us-gaap:LineOfCredit, us-gaap:SubsequentEvent, bsig:OneMonthAdjustedLondonInterbankOfferedRateLIBOR


Debt
Period End2021-02-23
Value1.0
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:RevolvingCreditFacility, bsig:AcadianCreditAgreementMaturingOnAugust222022, us-gaap:LineOfCredit, us-gaap:SubsequentEvent, us-gaap:FederalFundsEffectiveSwapRate


Debt
Period End2021-02-23
Value0.5
Percentage of DebtInstrumentBasisSpreadOnVariableRate150.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:ConsolidatedEntities, us-gaap:Range, us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType, us-gaap:VariableRate

bsig:ConsolidatedEntityExcludingConsolidatedFunds, srt:Maximum, us-gaap:RevolvingCreditFacility, bsig:AcadianCreditAgreementMaturingOnAugust222022, us-gaap:LineOfCredit, us-gaap:SubsequentEvent, bsig:OneTwoThreeOrSixMonthsLondonInterbankOfferedRateLIBOR


Debt
Period End2021-02-23
Value2.0
Percentage of DebtInstrumentBasisSpreadOnVariableRate1200.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, srt:Minimum, us-gaap:RevolvingCreditFacility, bsig:AcadianCreditAgreementMaturingOnAugust222022, us-gaap:LineOfCredit, us-gaap:SubsequentEvent, bsig:OneTwoThreeOrSixMonthsLondonInterbankOfferedRateLIBOR


Debt
Period End2021-02-23
Value1.5
Percentage of DebtInstrumentBasisSpreadOnVariableRate1150.0

us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax

us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax


Discontinued
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value5093.10.00.00.00.00.00.00.00.10.0
Percentage of DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax100.0100.00.00.00.00.00.00.00.0100.00.0

us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Discontinued
Period End2021-06-30
Value509
Percentage of DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax100.0

us-gaap:DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsDisposedOfBySale, bsig:InterestsInLandmark


Discontinued
Period End2021-06-30
Value509
Percentage of DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax100.0

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodBeforeIncomeTax

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodBeforeIncomeTax


Discontinued
Period End2021-06-302020-06-30
Value5425
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodBeforeIncomeTax100.0100.0

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodBeforeIncomeTax us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Discontinued
Period End2021-03-312020-03-31
Value2022
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodBeforeIncomeTax0.00.0

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax


Discontinued
Period End2021-06-302020-06-30
Value5326
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax100.0100.0

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Discontinued
Period End2021-03-312020-03-31
Value1815
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax0.00.0

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Discontinued
Period End2021-06-30
Value53
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax100.0

us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationsHeldforsale, bsig:LandmarkPartnersLLCCarriedInterestAndCoInvestments


Discontinued
Period End2021-06-302020-06-30
Value-3.10.0
Percentage of DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax-5.80.0

us-gaap:DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod

us-gaap:DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod


Discontinued
Period End2021-06-302020-06-30
Value1000000.0-1500000.0
Percentage of DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod100.0100.0

us-gaap:DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Discontinued
Period End2021-03-312020-03-31
Value1500000.07200000.0
Percentage of DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod0.00.0

us-gaap:DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation

us-gaap:DiscontinuedOperationsDisposedOfBySale, bsig:InterestsInLandmark


Discontinued
Period End2021-06-30
Value176
Percentage of DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense

us-gaap:DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense


Disposal
Period End2021-06-302020-06-30
Value3300000.04100000.0
Percentage of DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-03-312020-03-31
Value2900000.03400000.0
Percentage of DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense0.00.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingExpense

us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingExpense


Disposal
Period End2021-06-302020-06-30
Value4855
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingExpense100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingExpense us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-03-312020-03-31
Value3313
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingExpense0.00.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss

us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss


Disposal
Period End2021-06-302020-06-30
Value2.9-3.7
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-302019-09-30
Value9.620
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss0.00.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-03-312020-03-31
Value3.422
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss0.00.0

bsig:ConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-302019-09-30
Value4.71.0
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss0.00.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue

us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue


Disposal
Period End2021-06-302021-03-312020-06-30
Value513652
Percentage of DisposalGroupIncludingDiscontinuedOperationRevenue100.0100.0100.0

us-gaap:EquityMethodInvestmentDividendsOrDistributions us-gaap:ConsolidatedEntities

us-gaap:EquityMethodInvestmentDividendsOrDistributions

bsig:ConsolidatedFunds


Equity
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1.0-0.20.50.43.40.0
Percentage of EquityMethodInvestmentDividendsOrDistributions100.0100.0100.0100.0100.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1 us-gaap:ConsolidatedEntities

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Fair
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value300000.000100000.0-100000.000100000.0-300000.0-1100000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1100.00.00.0100.0100.00.00.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements us-gaap:ConsolidatedEntities

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Fair
Period End2021-06-302020-09-302019-09-30
Value-100000.0-300000.0100000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3 us-gaap:ConsolidatedEntities

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Fair
Period End2021-06-30
Value2700000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3100.0

us-gaap:FinitelivedIntangibleAssetsAcquired1 us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FinitelivedIntangibleAssetsAcquired1

us-gaap:TradeNames


Finitelived
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0001000000.00001000000.0
Percentage of FinitelivedIntangibleAssetsAcquired10.00.00.0100.00.00.00.0100.0

us-gaap:GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee us-gaap:ConsolidatedEntities

us-gaap:GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Gain
Period End2021-06-302021-03-31
Value0-1300000.0
Percentage of GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee0.0100.0

us-gaap:GoodwillImpairmentLoss

us-gaap:GoodwillImpairmentLoss


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value0.0-1.862645149230957e-150.0160.00.0
Percentage of GoodwillImpairmentLoss0.0100.00.0100.00.00.0

us-gaap:GoodwillImpairmentLoss us-gaap:ConsolidatedEntities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value0.0-1.862645149230957e-150.0160.00.0
Percentage of GoodwillImpairmentLoss0.0100.00.0100.00.00.0

us-gaap:GoodwillImpairmentLoss us-gaap:ReportingUnit

bsig:CopperRockCapitalPartnersLLC


Goodwill
Period End2020-12-312020-03-31
Value0.016
Percentage of GoodwillImpairmentLoss0.0100.0

us-gaap:GoodwillImpairmentLoss us-gaap:StatementBusinessSegments

bsig:LiquidAlpha


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value0.0-1.862645149230957e-150.0160.00.0
Percentage of GoodwillImpairmentLoss0.0100.00.0100.00.00.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTax

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTax


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value562182615
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTax100.0100.0100.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTax us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Income
Period End2021-03-312020-06-302020-03-31
Value183415
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTax100.0129.6100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest


Income
Period End2021-06-302020-06-30
Value5428
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest100.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Income
Period End2021-03-312020-03-31
Value130.1
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest0.00.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value5085.1-2.215
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity100.0100.0100.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Income
Period End2021-03-312020-03-31
Value5.115
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity100.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value6.40.06-0.030.18
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare100.0100.0100.0100.0

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare

us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value6.130.06-0.030.18
Percentage of IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ConsolidatedEntities

us-gaap:IncomeLossFromEquityMethodInvestments

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Income
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2.60.71.00.60.60.70.80.70.60.60.8
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:ConsolidatedFunds


Income
Period End2020-09-302019-09-30
Value-0.85.1
Percentage of IncomeLossFromEquityMethodInvestments-80.0637.5

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ConsolidatedEntities, us-gaap:InvestmentType

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:EquityAccountedInvestmentsInAffiliates


Income
Period End2021-03-312020-03-31
Value1.10.6
Percentage of IncomeLossFromEquityMethodInvestments42.3100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:OtherDiscretionaryInvestments


Income
Period End2021-03-312020-03-31
Value1.5-14.3
Percentage of IncomeLossFromEquityMethodInvestments57.7-2383.3

us-gaap:IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities us-gaap:ConsolidatedEntities

us-gaap:IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities

bsig:ConsolidatedFunds


Increase
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value3.75.2-3.81.6-3.90.2-7.83.6-7.46.6
Percentage of IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements us-gaap:AwardType

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:EmployeeStockOption


Incremental
Period End2021-06-302021-03-312020-12-312020-09-30
Value3551200.02965500.0471140.0735020.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value23323.035621.011361.0115160.013735.017893.0-16235.01429.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements0.71.22.415.70.00.00.00.0

us-gaap:InvestmentIncomeInterest us-gaap:ConsolidatedEntities

us-gaap:InvestmentIncomeInterest

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Investment
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value100000.0100000.00200000.0300000.0400000.0400000.0300000.01100000.01200000.0900000.0600000.0
Percentage of InvestmentIncomeInterest100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeNet

us-gaap:InvestmentIncomeNet


Investment
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value4.72.66.042-30.97.0-2.4202.8
Percentage of InvestmentIncomeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeNet us-gaap:ConsolidatedEntities

bsig:ConsolidatedFunds


Investment
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value9.42.135-17.27.14.7-4.513-6.6-1.1-3.3
Percentage of InvestmentIncomeNet0.035.084.455.70.067.1187.566.00.0-39.30.0

us-gaap:InvestmentIncomeNet us-gaap:ConsolidatedEntities, us-gaap:InvestmentType

bsig:ConsolidatedFunds, bsig:EquityAccountedInvestmentsInAffiliates


Investment
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value7.0-0.8280.05.55.1-4.60.00.00.0
Percentage of InvestmentIncomeNet0.0-13.368.5-0.00.072.9191.70.00.00.0

bsig:ConsolidatedFunds, bsig:OtherDiscretionaryInvestments


Investment
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2.42.96.7-17.21.6-0.40.113-6.6-1.1-3.3
Percentage of InvestmentIncomeNet0.048.315.955.70.0-5.7-4.266.00.0-39.30.0

us-gaap:InvestmentIncomeNet us-gaap:ConsolidationItems

us-gaap:MaterialReconcilingItems


Investment
Period End2021-06-302021-03-312020-06-302020-03-31
Value4.72.613-30.9
Percentage of InvestmentIncomeNet100.0100.031.5100.0

us-gaap:InvestmentIncomeNet us-gaap:SubsegmentsConsolidationItems

us-gaap:MaterialReconcilingItems


Investment
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value4.76.042-30.97.0-2.4202.8
Percentage of InvestmentIncomeNet100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeNonoperating us-gaap:ConsolidatedEntities

us-gaap:InvestmentIncomeNonoperating

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value4.72.68.13.96.6-13.75.42.32.17.0-3.13.9-0.4
Percentage of InvestmentIncomeNonoperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeNonoperating us-gaap:ConsolidatedEntities, us-gaap:InvestmentType

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:EquityAccountedInvestmentsInAffiliates


Investment
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1.20.71.00.60.60.70.80.70.60.60.80.7
Percentage of InvestmentIncomeNonoperating25.58.625.69.1-4.413.034.833.38.6-19.420.5-175.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:OtherDiscretionaryInvestments


Investment
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3.57.42.96.0-14.34.71.51.46.4-3.73.1-1.1
Percentage of InvestmentIncomeNonoperating74.591.474.490.9104.487.065.266.791.4119.479.5275.0

us-gaap:LaborAndRelatedExpense us-gaap:ConsolidatedEntities

us-gaap:LaborAndRelatedExpense

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Labor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value73671041091165783108123101143180183
Percentage of LaborAndRelatedExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value2.93.23.84.03.43.53.53.5
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage us-gaap:ConsolidatedEntities, us-gaap:Range, us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage

bsig:ConsolidatedEntityExcludingConsolidatedFunds, srt:Maximum, us-gaap:RevolvingCreditFacility, bsig:AcadianCreditAgreementMaturingOnAugust222022, us-gaap:LineOfCredit, us-gaap:SubsequentEvent


Line
Period End2021-02-23
Value0.375
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, srt:Minimum, us-gaap:RevolvingCreditFacility, bsig:AcadianCreditAgreementMaturingOnAugust222022, us-gaap:LineOfCredit, us-gaap:SubsequentEvent


Line
Period End2021-02-23
Value0.25
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage66.7

us-gaap:NetCashProvidedByUsedInFinancingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInFinancingActivitiesContinuingOperations


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-27.978-68.457-109.242-66.6-61.1-3.836-27.118
Percentage of NetCashProvidedByUsedInFinancingActivitiesContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value7111.0330-69.27.81.3171.5-5.9-4.4-1.2-31.4
Percentage of NetCashProvidedByUsedInInvestingActivitiesContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value67-20.2-1.53095-33.5458127-292.55252
Percentage of NetCashProvidedByUsedInOperatingActivitiesContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations us-gaap:ConsolidatedEntities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value67-20.2218291-29.1437970-299.565115
Percentage of NetCashProvidedByUsedInOperatingActivitiesContinuingOperations100.0100.0-1406.7273.796.086.996.098.3250.9102.4125.8221.6

bsig:ConsolidatedFunds


Net
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-22.6-52.13.8-4.41.81.4-42.17.0-13.5-63.6
Percentage of NetCashProvidedByUsedInOperatingActivitiesContinuingOperations1506.7-173.74.013.14.01.7-150.9-2.4-25.8-121.6

us-gaap:NoncontrollingInterestDecreaseFromDeconsolidation

us-gaap:NoncontrollingInterestDecreaseFromDeconsolidation


Noncontrolling
Period End2021-06-30
Value5600000.0
Percentage of NoncontrollingInterestDecreaseFromDeconsolidation100.0

us-gaap:NoncontrollingInterestDecreaseFromDeconsolidation us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:NoncontrollingInterest


Noncontrolling
Period End2021-06-30
Value5600000.0
Percentage of NoncontrollingInterestDecreaseFromDeconsolidation100.0

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination


Noncontrolling
Period End2021-03-312020-09-302020-06-302019-09-302019-06-302019-03-312018-09-30
Value100000.00100000.0100000.00200000.00
Percentage of NoncontrollingInterestIncreaseFromBusinessCombination100.00.0100.0100.00.0100.00.0

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:NoncontrollingInterest


Noncontrolling
Period End2021-06-302021-03-312020-09-302020-06-302019-09-302019-06-302019-03-312018-09-30
Value-5600000.0100000.00100000.0100000.00200000.00
Percentage of NoncontrollingInterestIncreaseFromBusinessCombination0.0100.00.0100.0100.00.0100.00.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.93.13.84.04.13.83.43.43.53.4
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3.52.83.43.63.83.73.63.73.73.6
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value800000.0800000.0800000.0800000.0800000.0700000.0800000.0700000.0700000.0700000.0700000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value800000.0800000.0800000.0800000.0800000.0700000.0800000.0700000.0800000.0700000.0700000.0700000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value600000.0600000.0600000.0600000.0600000.0500000.0600000.0600000.0600000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:TotalParentEntityDeficit


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value600000.0600000.0600000.0600000.0600000.0500000.0600000.0600000.0600000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value600000.0600000.0600000.0600000.0600000.0500000.0600000.0600000.0600000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-03-312018-09-30
Value100000.01100000.01400000.0300000.0-2100000.0-800000.0500000.0-400000.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value100000.01100000.01400000.0300000.0-2100000.0-800000.0-600000.0500000.0-400000.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax us-gaap:IncomeStatementLocation

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:InterestExpense


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value800000.0800000.0800000.0800000.0700000.0700000.0800000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherDepreciationAndAmortization us-gaap:ConsolidatedEntities

us-gaap:OtherDepreciationAndAmortization

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Other
Period End2021-06-302020-06-30
Value5.84.7
Percentage of OtherDepreciationAndAmortization100.0100.0

us-gaap:PaymentsOfDebtIssuanceCosts us-gaap:ConsolidatedEntities

us-gaap:PaymentsOfDebtIssuanceCosts

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Payments
Period End2021-06-302021-03-312019-12-31
Value0400000.00
Percentage of PaymentsOfDebtIssuanceCosts0.0100.00.0

us-gaap:PaymentsOfDistributionsToAffiliates us-gaap:ConsolidatedEntities

us-gaap:PaymentsOfDistributionsToAffiliates

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.30.30.40.30.32.72.93.81.83.02.82.7
Percentage of PaymentsOfDistributionsToAffiliates100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Proceeds
Period End2020-07-26
Value319
Percentage of ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanleyMewhinneyStraussLLC


Proceeds
Period End2020-11-17
Value292
Percentage of ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates0.0

us-gaap:ProceedsFromMinorityShareholders us-gaap:ConsolidatedEntities

us-gaap:ProceedsFromMinorityShareholders

bsig:ConsolidatedFunds


Proceeds
Period End2020-12-312020-09-302019-12-312019-09-30
Value2.19999999999999970.64.61.0
Percentage of ProceedsFromMinorityShareholders100.0100.0100.0100.0

us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestments us-gaap:ConsolidatedEntities

us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestments

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.27.2462624123317129.9
Percentage of ProceedsFromSaleMaturityAndCollectionsOfInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfEquityMethodInvestments us-gaap:SubsequentEventType

us-gaap:ProceedsFromSaleOfEquityMethodInvestments

us-gaap:SubsequentEvent


Proceeds
Period End2021-02-06
Value19
Percentage of ProceedsFromSaleOfEquityMethodInvestments100.0

us-gaap:ProceedsFromSaleOfOtherInvestments us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:ProceedsFromSaleOfOtherInvestments

us-gaap:DiscontinuedOperationsDisposedOfBySale, bsig:InterestsInLandmark


Proceeds
Period End2021-06-02
Value31
Percentage of ProceedsFromSaleOfOtherInvestments100.0

us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:ReclassificationFromAociCurrentPeriodTax


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-30
Value-200000.0-200000.0-200000.0-200000.0-200000.0-200000.0-200000.0-100000.0-100000.0-100000.0-100000.0
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterest


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-200000.0-200000.0-200000.0-200000.0-200000.0-200000.0-200000.0-100000.0-200000.0-100000.0-100000.0-100000.0
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.50.30.26.4700.00.10.349
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesNewIssues us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesNewIssues

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:CommonStock


Stock
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302018-12-312018-09-30
Value0.00.00.10.00.00.00.0
Percentage of StockIssuedDuringPeriodSharesNewIssues0.00.0100.00.00.00.00.0

us-gaap:StockRepurchasedDuringPeriodShares us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedDuringPeriodShares

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:CommonStock


Stock
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value0.70.02.53.22.92.80.3131.12.61.6
Percentage of StockRepurchasedDuringPeriodShares100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedDuringPeriodValue

us-gaap:StockRepurchasedDuringPeriodValue


Stock
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value100.0161927253.3180123424
Percentage of StockRepurchasedDuringPeriodValue100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:TotalParentEntityDeficit


Stock
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value100.0161927253.3180123424
Percentage of StockRepurchasedDuringPeriodValue100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:AdditionalPaidInCapital


Stock
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value100.0161927253.31801234
Percentage of StockRepurchasedDuringPeriodValue100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TemporaryEquityNetIncome us-gaap:ConsolidatedEntities

us-gaap:TemporaryEquityNetIncome

bsig:ConsolidatedFunds


Temporary
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value2000000.02800000.06200000.0-10600000.02100000.01100000.0900000.01700000.0-4200000.0200000.0-500000.0
Percentage of TemporaryEquityNetIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockAcquiredAverageCostPerShare

us-gaap:TreasuryStockAcquiredAverageCostPerShare


Treasury
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value06.565.939.12.3610.87
Percentage of TreasuryStockAcquiredAverageCostPerShare0.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockSharesRetired us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents

us-gaap:TreasuryStockSharesRetired

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:CommonStock


Treasury
Period End2020-09-302020-06-302020-03-31
Value00200000.0
Percentage of TreasuryStockSharesRetired0.00.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStockValueAcquiredCostMethod


Treasury
Period End2020-09-302020-06-302020-03-312019-09-302019-06-30
Value0.01619253.3
Percentage of TreasuryStockValueAcquiredCostMethod0.0100.0100.0100.0100.0

us-gaap:VariableLeaseCost

us-gaap:VariableLeaseCost


Variable
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-30
Value100000.0100000.0100000.0100000.0100000.0100000.0100000.0100000.0100000.0200000.0
Percentage of VariableLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:CashAndCashEquivalentsAtCarryingValueHeldForSale

bsig:CashAndCashEquivalentsAtCarryingValueHeldForSale


Cash
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value181311271415
Percentage of CashAndCashEquivalentsAtCarryingValueHeldForSale100.0100.0100.0100.0100.0100.0

bsig:CommitmentsToFundInvestmentActivity

bsig:CommitmentsToFundInvestmentActivity


Commitments
Period End2020-12-31
Value33
Percentage of CommitmentsToFundInvestmentActivity100.0

bsig:DeferredCompensationVoluntaryDeferralPlanLiabilityCurrentAndNoncurrent

bsig:DeferredCompensationVoluntaryDeferralPlanLiabilityCurrentAndNoncurrent


Deferred
Period End2020-12-312019-12-312018-12-31
Value728891
Percentage of DeferredCompensationVoluntaryDeferralPlanLiabilityCurrentAndNoncurrent100.0100.0100.0

bsig:DeferredTaxAssetsInterestExpense

bsig:DeferredTaxAssetsInterestExpense


Deferred
Period End2020-12-312019-12-312018-12-31
Value5.27073
Percentage of DeferredTaxAssetsInterestExpense100.0100.0100.0

bsig:DeferredTaxAssetsInvestmentPartnerships

bsig:DeferredTaxAssetsInvestmentPartnerships


Deferred
Period End2020-12-312019-12-312018-12-31
Value156164182
Percentage of DeferredTaxAssetsInvestmentPartnerships100.0100.0100.0

bsig:DeferredTaxLiabilitiesRightOfUseAssets

bsig:DeferredTaxLiabilitiesRightOfUseAssets


Deferred
Period End2020-12-312019-12-31
Value800000.01200000.0
Percentage of DeferredTaxLiabilitiesRightOfUseAssets100.0100.0

bsig:DefinedContributionPlanAssets

bsig:DefinedContributionPlanAssets


Defined
Period End2020-12-312019-12-312018-12-31
Value738891
Percentage of DefinedContributionPlanAssets100.0100.0100.0

bsig:DisposalGroupIncludingDiscontinuedOperationAssetsIncludingAssetsHeldForSale us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:DisposalGroupIncludingDiscontinuedOperationAssetsIncludingAssetsHeldForSale

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-06-302020-12-31
Value136326
Percentage of DisposalGroupIncludingDiscontinuedOperationAssetsIncludingAssetsHeldForSale100.0100.0

bsig:DisposalGroupIncludingDiscontinuedOperationDeferredCompensationLiabilities us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:DisposalGroupIncludingDiscontinuedOperationDeferredCompensationLiabilities

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-30
Value56
Percentage of DisposalGroupIncludingDiscontinuedOperationDeferredCompensationLiabilities100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-06-302021-03-312020-12-31
Value75188188
Percentage of DisposalGroupIncludingDiscontinuedOperationDeferredCompensationLiabilities0.00.00.0

bsig:DisposalGroupIncludingDiscontinuedOperationInvestmentAdvisoryFeesReceivable us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:DisposalGroupIncludingDiscontinuedOperationInvestmentAdvisoryFeesReceivable

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-30
Value21
Percentage of DisposalGroupIncludingDiscontinuedOperationInvestmentAdvisoryFeesReceivable100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-06-302020-12-31
Value120.2
Percentage of DisposalGroupIncludingDiscontinuedOperationInvestmentAdvisoryFeesReceivable0.00.0

bsig:DisposalGroupIncludingDiscontinuedOperationInvestments

bsig:DisposalGroupIncludingDiscontinuedOperationInvestments


Disposal
Period End2020-09-30
Value139
Percentage of DisposalGroupIncludingDiscontinuedOperationInvestments100.0

bsig:DisposalGroupIncludingDiscontinuedOperationInvestments us-gaap:ConsolidatedEntities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Disposal
Period End2020-09-30
Value27
Percentage of DisposalGroupIncludingDiscontinuedOperationInvestments19.3

bsig:ConsolidatedFunds


Disposal
Period End2021-03-312020-12-312020-09-30
Value128113112
Percentage of DisposalGroupIncludingDiscontinuedOperationInvestments0.00.080.7

bsig:DisposalGroupIncludingDiscontinuedOperationInvestments us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2021-06-302020-12-312020-09-30
Value282527
Percentage of DisposalGroupIncludingDiscontinuedOperationInvestments0.00.019.3

bsig:ConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-30
Value112
Percentage of DisposalGroupIncludingDiscontinuedOperationInvestments80.7

bsig:DisposalGroupIncludingDiscontinuedOperationInvestments us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:InvestmentType

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley, bsig:SeedCapital


Disposal
Period End2020-09-30
Value17
Percentage of DisposalGroupIncludingDiscontinuedOperationInvestments12.2

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanleyMewhinneyStraussLLC, bsig:SeedCapital


Disposal
Period End2020-11-17
Value49
Percentage of DisposalGroupIncludingDiscontinuedOperationInvestments0.0

bsig:DisposalGroupIncludingDiscontinuedOperationLiabilitiesIncludingLiabilitiesHeldForSale us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:DisposalGroupIncludingDiscontinuedOperationLiabilitiesIncludingLiabilitiesHeldForSale

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-06-302020-12-31
Value119313
Percentage of DisposalGroupIncludingDiscontinuedOperationLiabilitiesIncludingLiabilitiesHeldForSale100.0100.0

bsig:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilities us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilities

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-30
Value12
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilities100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-06-302021-03-312020-12-31
Value3.98.69.0
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilities0.00.00.0

bsig:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightOfUseAsset us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightOfUseAsset

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-30
Value12
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightOfUseAsset100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-06-302021-03-312020-12-31
Value3.68.08.4
Percentage of DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightOfUseAsset0.00.00.0

bsig:DueFromUnconsolidatedFunds us-gaap:RelatedPartyTransactionsByRelatedParty

bsig:DueFromUnconsolidatedFunds

bsig:UnconsolidatedFunds


Due
Period End2020-12-312019-12-31
Value9.315
Percentage of DueFromUnconsolidatedFunds100.0100.0

bsig:DuetoFormerParentOtherObligationsCurrentandNoncurrent us-gaap:ConsolidatedEntities

bsig:DuetoFormerParentOtherObligationsCurrentandNoncurrent

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Dueto
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1.92.03.43.43.43.73.73.75.233
Percentage of DuetoFormerParentOtherObligationsCurrentandNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostToBeRecognizedYearTwo

bsig:EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostToBeRecognizedYearTwo


Employee
Period End2020-12-31
Value100000.0
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostToBeRecognizedYearTwo100.0

bsig:EquityAccountedInvestmentsInAffiliatesAndConsolidatedFunds

bsig:EquityAccountedInvestmentsInAffiliatesAndConsolidatedFunds


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1.52.0115103104737356491.9
Percentage of EquityAccountedInvestmentsInAffiliatesAndConsolidatedFunds100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour

bsig:FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour


Finite
Period End2020-09-30
Value31
Percentage of FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour100.0

bsig:FiniteLivedIntangibleAssetsAccumulatedAmortizationAndImpairment us-gaap:FiniteLivedIntangibleAssetsByMajorClass

bsig:FiniteLivedIntangibleAssetsAccumulatedAmortizationAndImpairment

us-gaap:CustomerRelationships


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value28494745444240393731
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortizationAndImpairment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:InvestmentAdvisoryFeesReceivable us-gaap:ConsolidatedEntities

bsig:InvestmentAdvisoryFeesReceivable

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value110120112101126134151146156159
Percentage of InvestmentAdvisoryFeesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:InvestmentsAssignedtoFormerParentLiability

bsig:InvestmentsAssignedtoFormerParentLiability


Investments
Period End2020-12-312019-12-31
Value3400000.03700000.0
Percentage of InvestmentsAssignedtoFormerParentLiability100.0100.0

bsig:InvestmentsIncludingDisposalGroupAndDiscontinuedOperations

bsig:InvestmentsIncludingDisposalGroupAndDiscontinuedOperations


Investments
Period End2020-09-302019-12-31
Value358376
Percentage of InvestmentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0

bsig:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

bsig:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour


Lessee
Period End2021-06-302021-03-312020-09-30
Value647587
Percentage of LesseeOperatingLeaseLiabilityToBePaidAfterYearFour100.0100.0100.0

bsig:LiabilitiesHeldForSaleNotPartOfDisposalGroup us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:LiabilitiesHeldForSaleNotPartOfDisposalGroup

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Liabilities
Period End2021-06-30
Value26
Percentage of LiabilitiesHeldForSaleNotPartOfDisposalGroup100.0

bsig:LineOfCreditFacilityCovenantTermsMinimumConsolidatedAdjustedEBITDA us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

bsig:LineOfCreditFacilityCovenantTermsMinimumConsolidatedAdjustedEBITDA

us-gaap:RevolvingCreditFacility, bsig:AmendmentToTheRevolvingCreditAgreement, us-gaap:LineOfCredit


Line
Period End2020-09-03
Value10.0
Percentage of LineOfCreditFacilityCovenantTermsMinimumConsolidatedAdjustedEBITDA100.0

us-gaap:RevolvingCreditFacility, bsig:RevolvingCreditAgreementDatedAsOfAugust202019, us-gaap:LineOfCredit


Line
Period End2020-09-03
Value10.0
Percentage of LineOfCreditFacilityCovenantTermsMinimumConsolidatedAdjustedEBITDA100.0

bsig:ProfitInterestsCompensationLiability

bsig:ProfitInterestsCompensationLiability


Profit
Period End2020-12-312019-12-312018-12-31
Value4194171
Percentage of ProfitInterestsCompensationLiability100.0100.0100.0

bsig:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageGrantDateFairValue us-gaap:AwardType, us-gaap:PlanName

bsig:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageGrantDateFairValue

bsig:PerformanceSharesRestrictedStock, bsig:BrightsphereEquityIncentivePlan


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value9.7810.1110.1110.260
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageGrantDateFairValue100.0100.0100.0100.00.0

us-gaap:PerformanceShares, bsig:BrightsphereEquityIncentivePlan


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value14.6214.6210.9220.5920.59
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageGrantDateFairValue149.5144.6108.0200.70.0

us-gaap:RestrictedStock, bsig:BrightsphereEquityIncentivePlan


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value13.2614.4314.8314.2613.77
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageGrantDateFairValue135.6142.7146.7139.00.0

us-gaap:RestrictedStockUnitsRSU, bsig:BrightsphereEquityIncentivePlan


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value10.5311.7914.4614.713.59
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageGrantDateFairValue107.7116.6143.0143.30.0

bsig:StockholdersEquityDeficit us-gaap:ConsolidatedEntities

bsig:StockholdersEquityDeficit

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Stockholders
Period End2020-12-312019-12-312019-06-302018-12-31
Value-176.5-452.57.0124
Percentage of StockholdersEquityDeficit100.0100.0100.0100.0

bsig:TotalEquityIncludingTemporaryEquityCarryingAmountAttributableToNoncontrollingInterest

bsig:TotalEquityIncludingTemporaryEquityCarryingAmountAttributableToNoncontrollingInterest


Total
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value86343038427123219319815210351176171155209171170
Percentage of TotalEquityIncludingTemporaryEquityCarryingAmountAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

bsig:VariableInterestEntityNonconsolidatedEquityInterests us-gaap:ConsolidatedEntities

bsig:VariableInterestEntityNonconsolidatedEquityInterests

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Variable
Period End2021-06-302021-03-312020-12-312019-12-31
Value14131417
Percentage of VariableInterestEntityNonconsolidatedEquityInterests100.0100.0100.0100.0

bsig:VariableInterestEntityNonconsolidatedEquityInterests us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Variable
Period End2020-09-302020-06-302019-12-31
Value121617
Percentage of VariableInterestEntityNonconsolidatedEquityInterests0.00.0100.0

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent us-gaap:ConsolidatedEntities

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value25233327332441373854
Percentage of AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsPayableCurrentAndNoncurrent us-gaap:ConsolidatedEntities

us-gaap:AccountsPayableCurrentAndNoncurrent

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Accounts
Period End2020-12-312019-12-312018-12-31
Value7300000.07700000.09000000.0
Percentage of AccountsPayableCurrentAndNoncurrent100.0100.0100.0

us-gaap:AccruedIncomeTaxes us-gaap:ConsolidatedEntities

us-gaap:AccruedIncomeTaxes

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value794.24.113131212125553
Percentage of AccruedIncomeTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedLiabilitiesCurrentAndNoncurrent us-gaap:ConsolidatedEntities

us-gaap:AccruedLiabilitiesCurrentAndNoncurrent

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Accrued
Period End2020-12-312019-12-312018-12-31
Value182636
Percentage of AccruedLiabilitiesCurrentAndNoncurrent100.0100.0100.0

us-gaap:AlternativeInvestment us-gaap:ConsolidatedEntities

us-gaap:AlternativeInvestment

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Alternative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value5.6126.21620286.4535412
Percentage of AlternativeInvestment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AlternativeInvestment us-gaap:ConsolidatedEntities, us-gaap:InvestmentType

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:RealEstateFundsRedemptionRestrictions


Alternative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value4.95.26.25.96.35.96.46.29.312
Percentage of AlternativeInvestment87.542.3100.036.031.320.4100.011.617.0100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:Uncategorized


Alternative
Period End2020-12-312019-12-312018-12-31
Value164858
Percentage of AlternativeInvestment261.3753.1476.4

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:VariousInvestments


Alternative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value5.61216162028485358
Percentage of AlternativeInvestment100.0100.0261.3100.0100.0100.0753.1100.0476.4

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:RealEstateFunds


Alternative
Period End2020-12-312019-12-312019-06-302018-12-31
Value16485458
Percentage of AlternativeInvestment261.3753.1100.0476.4

us-gaap:AlternativeInvestment us-gaap:InvestmentType

bsig:VariousInvestments


Alternative
Period End2020-12-312019-12-312018-12-31
Value164897
Percentage of AlternativeInvestment261.3753.1791.9

bsig:VariousInvestmentsAndAffiliateHeldForSale


Alternative
Period End2021-06-302021-03-312020-09-30
Value5.61216
Percentage of AlternativeInvestment100.0100.0100.0

us-gaap:RealEstateFunds


Alternative
Period End2020-12-312019-12-312019-06-302018-12-31
Value16485497
Percentage of AlternativeInvestment261.3753.1100.0791.9

us-gaap:AssetsFairValueDisclosure

us-gaap:AssetsFairValueDisclosure


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value60112113254253266303322332321
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsFairValueDisclosure us-gaap:ConsolidatedEntities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Assets
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value114143158184197204196
Percentage of AssetsFairValueDisclosure45.156.659.660.761.461.461.2

us-gaap:AssetsFairValueDisclosure us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:FairValueInputsLevel1


Assets
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value82110117122130135126
Percentage of AssetsFairValueDisclosure32.443.444.040.240.540.839.5

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:FairValueInputsLevel2


Assets
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value13109.51110108.2
Percentage of AssetsFairValueDisclosure5.14.13.63.73.33.22.6

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:FairValueInputsLevel3


Assets
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2.62.73.03.03.03.03.03.0
Percentage of AssetsFairValueDisclosure2.31.11.21.11.00.90.90.9

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value548582116120130132147157148
Percentage of AssetsFairValueDisclosure90.776.373.145.647.348.943.645.647.546.3

us-gaap:FairValueInputsLevel2


Assets
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value111111911010412011811672
Percentage of AssetsFairValueDisclosure10.510.346.943.639.139.636.935.122.5

us-gaap:FairValueInputsLevel3


Assets
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value2.62.62.73.03.03.03.03.03.0
Percentage of AssetsFairValueDisclosure2.32.31.11.21.11.00.90.90.9

us-gaap:AssetsHeldForSaleLongLivedFairValueDisclosure us-gaap:ConsolidatedEntities

us-gaap:AssetsHeldForSaleLongLivedFairValueDisclosure

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Assets
Period End2020-09-30
Value27
Percentage of AssetsHeldForSaleLongLivedFairValueDisclosure100.0

bsig:ConsolidatedFunds


Assets
Period End2020-09-30
Value112
Percentage of AssetsHeldForSaleLongLivedFairValueDisclosure418.1

us-gaap:AssetsHeldForSaleLongLivedFairValueDisclosure us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:FairValueInputsLevel1


Assets
Period End2020-09-30
Value27
Percentage of AssetsHeldForSaleLongLivedFairValueDisclosure100.0

bsig:ConsolidatedFunds, us-gaap:FairValueInputsLevel1


Assets
Period End2020-09-30
Value6.4
Percentage of AssetsHeldForSaleLongLivedFairValueDisclosure23.7

bsig:ConsolidatedFunds, us-gaap:FairValueInputsLevel2


Assets
Period End2020-09-30
Value106
Percentage of AssetsHeldForSaleLongLivedFairValueDisclosure394.4

us-gaap:AssetsHeldForSaleLongLivedFairValueDisclosure us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:FairValueInputsLevel1, bsig:LongTermIncentiveCompensationPlans


Assets
Period End2020-09-30
Value27
Percentage of AssetsHeldForSaleLongLivedFairValueDisclosure100.0

bsig:ConsolidatedFunds, us-gaap:FairValueInputsLevel1, bsig:ShortTermInvestmentFunds


Assets
Period End2020-09-30
Value0.5
Percentage of AssetsHeldForSaleLongLivedFairValueDisclosure1.9

bsig:ConsolidatedFunds, us-gaap:FairValueInputsLevel1, us-gaap:EquitySecurities


Assets
Period End2020-09-30
Value5.9
Percentage of AssetsHeldForSaleLongLivedFairValueDisclosure21.9

bsig:ConsolidatedFunds, us-gaap:FairValueInputsLevel2, us-gaap:BankLoanObligations


Assets
Period End2020-09-30
Value106
Percentage of AssetsHeldForSaleLongLivedFairValueDisclosure394.4

us-gaap:AssetsHeldForSaleLongLivedFairValueDisclosure us-gaap:ConsolidatedEntities, us-gaap:InvestmentType

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:LongTermIncentiveCompensationPlans


Assets
Period End2020-09-30
Value27
Percentage of AssetsHeldForSaleLongLivedFairValueDisclosure100.0

bsig:ConsolidatedFunds, bsig:ShortTermInvestmentFunds


Assets
Period End2020-09-30
Value0.5
Percentage of AssetsHeldForSaleLongLivedFairValueDisclosure1.9

bsig:ConsolidatedFunds, us-gaap:BankLoanObligations


Assets
Period End2020-09-30
Value106
Percentage of AssetsHeldForSaleLongLivedFairValueDisclosure394.4

bsig:ConsolidatedFunds, us-gaap:EquitySecurities


Assets
Period End2020-09-30
Value5.9
Percentage of AssetsHeldForSaleLongLivedFairValueDisclosure21.9

us-gaap:AssetsHeldForSaleNotPartOfDisposalGroup us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:AssetsHeldForSaleNotPartOfDisposalGroup

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Assets
Period End2021-06-30
Value62
Percentage of AssetsHeldForSaleNotPartOfDisposalGroup100.0

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation us-gaap:ConsolidatedEntities

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Assets
Period End2021-06-302021-03-312020-12-312020-09-30
Value136241249151
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperation100.0100.0100.0100.0

bsig:ConsolidatedFunds


Assets
Period End2021-03-312020-12-312020-09-30
Value130114114
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperation54.245.875.7

us-gaap:VariableInterestEntityPrimaryBeneficiary


Assets
Period End2021-03-312020-12-31
Value130114
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperation54.245.8

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Assets
Period End2020-09-30
Value151
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperation100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Assets
Period End2021-06-302021-03-312020-12-31
Value74241249
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperation54.3100.0100.0

bsig:ConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Assets
Period End2020-09-30
Value114
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperation75.7

us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Assets
Period End2020-09-30
Value114
Percentage of AssetsOfDisposalGroupIncludingDiscontinuedOperation75.7

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations


Cash
Period End2021-06-302021-03-312020-06-302020-03-31
Value1195465125131
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0100.0100.0

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance


Common
Period End2020-12-31
Value14
Percentage of CommonStockCapitalSharesReservedForFutureIssuance100.0

us-gaap:DebtWeightedAverageInterestRate us-gaap:ConsolidatedEntities

us-gaap:DebtWeightedAverageInterestRate

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Debt
Period End2020-12-312019-12-312018-12-312017-12-31
Value5.080.05280.06080.0602
Percentage of DebtWeightedAverageInterestRate100.0100.0100.0100.0

us-gaap:DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible

us-gaap:DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible


Decrease
Period End2020-12-31
Value3200000.0
Percentage of DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible100.0

us-gaap:DeferredCompensationLiabilityCurrentAndNoncurrent

us-gaap:DeferredCompensationLiabilityCurrentAndNoncurrent


Deferred
Period End2020-12-312019-12-312018-12-31
Value328404649
Percentage of DeferredCompensationLiabilityCurrentAndNoncurrent100.0100.0100.0

us-gaap:DeferredCompensationLiabilityCurrentAndNoncurrent us-gaap:ConsolidatedEntities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value81145328313367356404432432649
Percentage of DeferredCompensationLiabilityCurrentAndNoncurrent0.00.0100.00.00.00.0100.00.00.0100.0

us-gaap:DeferredCompensationSharebasedArrangementsLiabilityCurrentAndNoncurrent

us-gaap:DeferredCompensationSharebasedArrangementsLiabilityCurrentAndNoncurrent


Deferred
Period End2020-12-312019-12-312018-12-31
Value213221386
Percentage of DeferredCompensationSharebasedArrangementsLiabilityCurrentAndNoncurrent100.0100.0100.0

us-gaap:DeferredCompensationSharebasedArrangementsLiabilityCurrentAndNoncurrent us-gaap:AwardType

bsig:CashSettledAwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value21322138618853
Percentage of DeferredCompensationSharebasedArrangementsLiabilityCurrentAndNoncurrent100.0100.0100.00.00.0

us-gaap:DeferredIncomeTaxAssetsNet us-gaap:ConsolidatedEntities

us-gaap:DeferredIncomeTaxAssetsNet

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value89167170212219220243270
Percentage of DeferredIncomeTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-31
Value3800000.06200000.0
Percentage of DeferredIncomeTaxLiabilities100.0100.0

us-gaap:DeferredTaxAssetsDerivativeInstruments

us-gaap:DeferredTaxAssetsDerivativeInstruments


Deferred
Period End2020-12-312019-12-312018-12-31
Value5500000.06200000.04700000.0
Percentage of DeferredTaxAssetsDerivativeInstruments100.0100.0100.0

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-31
Value100000.0300000.0500000.0
Percentage of DeferredTaxAssetsGoodwillAndIntangibleAssets100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-31
Value174248270
Percentage of DeferredTaxAssetsGross100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic


Deferred
Period End2020-12-312019-12-312018-12-31
Value500000.0900000.01400000.0
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsDomestic100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-31
Value3300000.01800000.02000000.0
Percentage of DeferredTaxAssetsOther100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits


Deferred
Period End2020-12-312019-12-312018-12-31
Value3900000.04400000.06200000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings


Deferred
Period End2020-12-312019-12-312018-12-31
Value3000000.05000000.0300000.0
Percentage of DeferredTaxLiabilitiesUndistributedForeignEarnings100.0100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-30
Value3000000.0
Percentage of DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-06-302021-03-312020-12-31
Value1100000.02100000.01100000.0
Percentage of DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities0.00.00.0

bsig:ConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-30
Value100000.0
Percentage of DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities3.3

us-gaap:DisposalGroupIncludingDiscontinuedOperationAccruedLiabilities us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationAccruedLiabilities

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-30
Value8.3
Percentage of DisposalGroupIncludingDiscontinuedOperationAccruedLiabilities100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-06-302021-03-312020-12-31
Value112326
Percentage of DisposalGroupIncludingDiscontinuedOperationAccruedLiabilities0.00.00.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents us-gaap:ConsolidatedEntities

us-gaap:DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents

bsig:ConsolidatedFunds


Disposal
Period End2021-03-312020-12-31
Value2.50.6
Percentage of DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-30
Value12
Percentage of DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents0.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-06-302021-03-312020-12-31
Value121010
Percentage of DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents0.0432.01766.7

bsig:ConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-30
Value0.8
Percentage of DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents0.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationConsideration us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationConsideration

us-gaap:DiscontinuedOperationsDisposedOfBySale, bsig:InterestsInLandmark


Disposal
Period End2021-06-02
Value690
Percentage of DisposalGroupIncludingDiscontinuedOperationConsideration100.0

us-gaap:DiscontinuedOperationsDisposedOfBySale, bsig:TSW


Disposal
Period End2021-05-09
Value240
Percentage of DisposalGroupIncludingDiscontinuedOperationConsideration0.0

us-gaap:DiscontinuedOperationsDisposedOfBySale, bsig:TSWSeedCapital


Disposal
Period End2021-05-09
Value14
Percentage of DisposalGroupIncludingDiscontinuedOperationConsideration0.0

us-gaap:DiscontinuedOperationsHeldforsale, bsig:LandmarkPartnersLLC


Disposal
Period End2021-03-30
Value690
Percentage of DisposalGroupIncludingDiscontinuedOperationConsideration0.0

us-gaap:DiscontinuedOperationsHeldforsale, bsig:LandmarkPartnersLLCCarriedInterestAndCoInvestments


Disposal
Period End2021-06-022021-03-30
Value3134
Percentage of DisposalGroupIncludingDiscontinuedOperationConsideration4.60.0

us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:InvestmentCounselorsOfMaryland


Disposal
Period End2021-02-06
Value19
Percentage of DisposalGroupIncludingDiscontinuedOperationConsideration0.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationConsideration us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations, us-gaap:SubsequentEventType

us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperations, bsig:InvestmentCounselorsOfMaryland, us-gaap:SubsequentEvent


Disposal
Period End2021-07-19
Value18
Percentage of DisposalGroupIncludingDiscontinuedOperationConsideration0.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationDeferredTaxAssets us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationDeferredTaxAssets

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2020-12-31
Value500000.0
Percentage of DisposalGroupIncludingDiscontinuedOperationDeferredTaxAssets100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationGoodwill1 us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationGoodwill1

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-30
Value76
Percentage of DisposalGroupIncludingDiscontinuedOperationGoodwill1100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanleyMewhinneyStraussLLC


Disposal
Period End2020-11-30
Value76
Percentage of DisposalGroupIncludingDiscontinuedOperationGoodwill10.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-06-302021-03-312020-12-31
Value13148148
Percentage of DisposalGroupIncludingDiscontinuedOperationGoodwill10.00.00.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationIntangibleAssets us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationIntangibleAssets

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-03-312020-12-31
Value5658
Percentage of DisposalGroupIncludingDiscontinuedOperationIntangibleAssets100.0100.0

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherAssets us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherAssets

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-30
Value1.8
Percentage of DisposalGroupIncludingDiscontinuedOperationOtherAssets100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-06-302021-03-312020-12-31
Value0.81116
Percentage of DisposalGroupIncludingDiscontinuedOperationOtherAssets0.00.00.0

bsig:ConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Disposal
Period End2020-09-30
Value0.6
Percentage of DisposalGroupIncludingDiscontinuedOperationOtherAssets33.3

us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Disposal
Period End2021-06-302021-03-312020-12-31
Value1800000.06900000.06900000.0
Percentage of DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment100.0100.0100.0

us-gaap:DueFromRelatedParties

us-gaap:DueFromRelatedParties


Due
Period End2020-12-312019-12-312018-12-31
Value9.31525
Percentage of DueFromRelatedParties100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrentAndNoncurrent us-gaap:ConsolidatedEntities

us-gaap:EmployeeRelatedLiabilitiesCurrentAndNoncurrent

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value4734120120946313713098171
Percentage of EmployeeRelatedLiabilitiesCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions


Employee
Period End2020-12-31
Value3600000.0
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions100.0

us-gaap:EquityMethodInvestments us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestments

bsig:InvestmentCounselorsOfMaryland


Equity
Period End2021-03-31
Value2000000.0
Percentage of EquityMethodInvestments100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue us-gaap:ConsolidatedEntities

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Fair
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value2.62.62.73.03.03.03.03.03.03.04.65.26.30.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive


Finite
Period End2020-12-31
Value25
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear


Finite
Period End2020-09-30
Value1600000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-12-31
Value6400000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2020-12-312020-09-30
Value6400000.06500000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:CustomerRelationships


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value85108108108108108108108108108
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillGross

us-gaap:GoodwillGross


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value232232308258274308308274274274
Percentage of GoodwillGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillGross us-gaap:StatementBusinessSegments

bsig:Alternatives


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value153153153148148153153148148148
Percentage of GoodwillGross65.965.949.657.453.949.649.653.953.953.9

bsig:LiquidAlpha


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value575713389106133133106106106
Percentage of GoodwillGross24.624.643.234.838.743.243.238.738.738.7

bsig:QuantAndSolutions


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value22222220202222202020
Percentage of GoodwillGross9.59.57.27.97.47.27.27.47.47.4

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value50505050333333333333
Percentage of GoodwillImpairedAccumulatedImpairmentLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss us-gaap:StatementBusinessSegments

bsig:LiquidAlpha


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value43434343272727272727
Percentage of GoodwillImpairedAccumulatedImpairmentLoss86.586.586.586.579.979.979.979.979.979.9

us-gaap:IncomeTaxReceivable us-gaap:ConsolidatedEntities

us-gaap:IncomeTaxReceivable

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Income
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value0.99.32428362612113.9
Percentage of IncomeTaxReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPayableCurrentAndNoncurrent us-gaap:ConsolidatedEntities

us-gaap:InterestPayableCurrentAndNoncurrent

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Interest
Period End2020-12-312019-12-312018-12-31
Value6800000.07000000.06800000.0
Percentage of InterestPayableCurrentAndNoncurrent100.0100.0100.0

us-gaap:Investments

us-gaap:Investments


Investments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value62114228218357339376378381323
Percentage of Investments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Investments us-gaap:ConsolidatedEntities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Investmentsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value62114115116145161186199206198
Percentage of Investments100.0100.050.353.340.647.449.452.754.061.4

bsig:ConsolidatedFunds


Investmentsus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value113101212178190179175124
Percentage of Investments49.746.759.452.650.647.346.038.6

us-gaap:InvestmentsFairValueDisclosure

us-gaap:InvestmentsFairValueDisclosure


Investments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value60112113114253266303322332321
Percentage of InvestmentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentsFairValueDisclosure us-gaap:ConsolidatedEntities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Investments
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312018-12-31
Value60112113114184196
Percentage of InvestmentsFairValueDisclosure100.0100.0100.0100.060.761.2

bsig:ConsolidatedFunds


Investments
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value0.0110107119124128124
Percentage of InvestmentsFairValueDisclosure0.043.440.439.338.638.638.8

us-gaap:InvestmentsFairValueDisclosure us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:FairValueInputsLevel3, bsig:VariousInvestments


Investments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value0.02.62.62.73.03.03.03.03.0
Percentage of InvestmentsFairValueDisclosure0.02.32.32.41.21.11.00.90.9

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:FairValueInputsLevel3, us-gaap:RealEstateFunds


Investments
Period End2020-12-312019-12-312019-06-302018-12-31
Value2.63.03.03.0
Percentage of InvestmentsFairValueDisclosure2.31.00.90.9

us-gaap:InvestmentsFairValueDisclosure us-gaap:ConsolidatedEntities, us-gaap:InvestmentType

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:InvestmentsOfVoluntaryDeferredCompensationPlans


Investments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value45757366888988959991
Percentage of InvestmentsFairValueDisclosure75.466.664.557.635.133.529.229.630.028.6

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:OtherDiscretionaryInvestments


Investments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value14374048546995102104104
Percentage of InvestmentsFairValueDisclosure24.633.435.542.421.526.031.431.831.432.6

bsig:ConsolidatedEntityExcludingConsolidatedFunds, bsig:VariousInvestments


Investments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value5.61418192331515661
Percentage of InvestmentsFairValueDisclosure9.313.216.616.79.112.016.917.519.2

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:RealEstateFunds


Investments
Period End2020-12-312019-12-312019-06-302018-12-31
Value18515761
Percentage of InvestmentsFairValueDisclosure16.616.917.419.2

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value5.97.21313
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2021-06-302021-03-312020-09-30
Value4800000.08400000.03300000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation us-gaap:ConsolidatedEntities

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-30
Value11922422680
Percentage of LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation100.0100.0100.0100.0

bsig:ConsolidatedFunds


Liabilities
Period End2020-09-30
Value0.1
Percentage of LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation0.1

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation us-gaap:ConsolidatedEntities, us-gaap:DisposalGroupClassification, us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Liabilities
Period End2020-09-30
Value80
Percentage of LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation100.0

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:LandmarkPartners


Liabilities
Period End2021-06-302021-03-312020-12-31
Value92224226
Percentage of LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation77.5100.0100.0

bsig:ConsolidatedFunds, us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperations, bsig:BarrowHanley


Liabilities
Period End2020-09-30
Value0.1
Percentage of LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation0.1

us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityPrimaryBeneficiary


Liabilities
Period End2020-09-30
Value0.1
Percentage of LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation0.1

us-gaap:LineOfCredit us-gaap:ConsolidatedEntities

us-gaap:LineOfCredit

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value53475394474524613533568603393
Percentage of LineOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:RevolvingCreditFacility, bsig:AcadianCreditAgreementMaturingOnAugust222022, us-gaap:LineOfCredit, us-gaap:SubsequentEvent


Line
Period End2021-02-23
Value125
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0

us-gaap:LoansAndLeasesReceivableRelatedParties

us-gaap:LoansAndLeasesReceivableRelatedParties


Loans
Period End2020-12-312019-12-31
Value8.416
Percentage of LoansAndLeasesReceivableRelatedParties100.0100.0

us-gaap:LongTermDebtFairValue us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType

us-gaap:LongTermDebtFairValue

us-gaap:RevolvingCreditFacility, bsig:RevolvingCreditFacilityExpiringAugust222022, us-gaap:FairValueInputsLevel2, us-gaap:LineOfCredit


Long
Period End2021-06-30
Value53
Percentage of LongTermDebtFairValue100.0

us-gaap:LongTermDebtFairValue us-gaap:CreditFacility, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType

us-gaap:RevolvingCreditFacility, us-gaap:FairValueInputsLevel2, us-gaap:LineOfCredit


Long
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value5381801302201401752100.0
Percentage of LongTermDebtFairValue100.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebtFairValue us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType

bsig:SeniorNotes4.80due2026, us-gaap:FairValueInputsLevel2, us-gaap:SeniorNotes


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value296301298294273245287285278266
Percentage of LongTermDebtFairValue549.70.00.00.00.00.00.00.00.00.0

bsig:SeniorNotes5.125due2031, us-gaap:FairValueInputsLevel2, us-gaap:SeniorNotes


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value12912612612812188126124123102
Percentage of LongTermDebtFairValue240.60.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebtFairValue us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel2


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value426509424502546575588620636368
Percentage of LongTermDebtFairValue790.40.00.00.00.00.00.00.00.00.0

us-gaap:LongTermDebtFairValue us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType

us-gaap:FairValueInputsLevel2, bsig:ThirdPartyDebtArrangement


Long
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value424502524553553
Percentage of LongTermDebtFairValue0.00.00.00.00.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive


Long
Period End2020-12-31
Value400
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive100.0

us-gaap:MoneyMarketFundsAtCarryingValue

us-gaap:MoneyMarketFundsAtCarryingValue


Money
Period End2021-06-302021-03-31
Value1100333
Percentage of MoneyMarketFundsAtCarryingValue100.0100.0

us-gaap:NotesReceivableRelatedParties us-gaap:RelatedPartyTransaction, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:NotesReceivableRelatedParties

bsig:AffiliateLoantoItsEmployees, bsig:AffiliateEmployees


Notes
Period End2021-03-312020-12-312020-09-302020-06-302019-12-31
Value3.98.4111116
Percentage of NotesReceivableRelatedParties100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3.353.343.53.470.03470.03484.144.130.04110.0397
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

us-gaap:DomesticCountry


Operating
Period End2020-12-312019-12-312018-12-31
Value4400000.04400000.0200000.0
Percentage of OperatingLossCarryforwards100.0100.0100.0

us-gaap:StateAndLocalJurisdiction


Operating
Period End2020-12-31
Value1100000.0
Percentage of OperatingLossCarryforwards25.0

us-gaap:OtherCommitment us-gaap:OtherCommitments

us-gaap:OtherCommitment

bsig:UnfundedCommitments


Other
Period End2021-03-31
Value29
Percentage of OtherCommitment100.0

us-gaap:OtherCommitment us-gaap:Range

srt:Maximum


Other
Period End2021-06-302021-03-312020-09-30
Value4.05.037
Percentage of OtherCommitment0.017.20.0

us-gaap:OtherLiabilities us-gaap:ConsolidatedEntities

us-gaap:OtherLiabilities

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value0.21.32.83.33.33.14548528.3
Percentage of OtherLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherLongTermDebtNoncurrent us-gaap:ConsolidatedEntities

us-gaap:OtherLongTermDebtNoncurrent

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Other
Period End2021-06-302020-12-31
Value394394
Percentage of OtherLongTermDebtNoncurrent100.0100.0

us-gaap:RedeemableNoncontrollingInterestEquityCarryingAmount us-gaap:ConsolidatedEntities

us-gaap:RedeemableNoncontrollingInterestEquityCarryingAmount

bsig:ConsolidatedFunds


Redeemable
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value0.085797483818141
Percentage of RedeemableNoncontrollingInterestEquityCarryingAmount0.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCash us-gaap:ConsolidatedEntities

us-gaap:RestrictedCash

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Restricted
Period End2020-12-31
Value1600000.0
Percentage of RestrictedCash100.0

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue

bsig:ConsolidatedFunds


Restricted
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value600000.01100000.09500000.06800000.09700000.08200000.07400000.04900000.0
Percentage of RestrictedCashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-31
Value11.7312.012.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:EmployeeStockOption


Share
Period End2020-12-312019-12-312018-12-31
Value582900.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.00.00.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1 us-gaap:AwardType

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:EmployeeStockOption


Sharebased
Period End2020-12-312019-12-312018-12-31
Value323660.00.0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.00.00.0

us-gaap:TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests us-gaap:ConsolidatedEntities

us-gaap:TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests

bsig:ConsolidatedFunds


Temporary
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value8579748381814341706.037445.5
Percentage of TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TradingSecuritiesDebt us-gaap:ConsolidatedEntities

us-gaap:TradingSecuritiesDebt

bsig:ConsolidatedEntityExcludingConsolidatedFunds


Trading
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value45757366888988959991
Percentage of TradingSecuritiesDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TradingSecuritiesDebt us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel

bsig:ConsolidatedEntityExcludingConsolidatedFunds, us-gaap:FairValueInputsLevel1


Trading
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value45757366888988959991
Percentage of TradingSecuritiesDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-31
Value500000.01400000.06700000.08600000.0
Percentage of UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate


Unrecognized
Period End2020-12-312019-12-312018-12-31
Value3.41146
Percentage of UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate100.0100.0100.0

us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount us-gaap:ConsolidatedEntities

us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Variable
Period End2021-06-302021-03-312020-12-312019-12-31
Value19181923
Percentage of VariableInterestEntityEntityMaximumLossExposureAmount100.0100.0100.0100.0

us-gaap:VariableInterestEntityEntityMaximumLossExposureAmount us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities

us-gaap:VariableInterestEntityNotPrimaryBeneficiary


Variable
Period End2020-09-302020-06-302019-12-31
Value182323
Percentage of VariableInterestEntityEntityMaximumLossExposureAmount0.00.0100.0

Line plots across dimensions of each concept


us-gaap:GainLossOnInvestments
us-gaap:ConsolidatedEntities
(None,)
Gain Loss On Investmentsus-gaap: Consolidated Entities
us-gaap:IncomeTaxExpenseBenefit
us-gaap:ConsolidationItems
(None,)
Income Tax Expense Benefitus-gaap: Consolidation Items
us-gaap:InterestExpense
us-gaap:ConsolidationItems
(None,)
Interest Expenseus-gaap: Consolidation Items
us-gaap:NetIncomeLoss
us-gaap:StatementBusinessSegments
(None,)
Net Income Lossus-gaap: Statement Business Segments
us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Net Income Lossus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems
(None,)
Net Income Lossus-gaap: Consolidation Items
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
('bsig:ConsolidatedEntityExcludingConsolidatedFunds', None)
Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Taxus-gaap: Consolidated Entities, us-gaap: Statement Equity Components
us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents
(None,)
Other Comprehensive Income Loss Net Of Taxus-gaap: Statement Equity Components
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidatedEntities, us-gaap:ProductOrService
('bsig:ConsolidatedEntityExcludingConsolidatedFunds', None)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Consolidated Entities, us-gaap: Product Or Service
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:InvestmentType, us-gaap:StatementBusinessSegments
(None, 'bsig:LiquidAlphaDomain')
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Investment Type, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService, us-gaap:StatementGeographical
('us-gaap:AssetManagement1', None)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service, us-gaap: Statement Geographical
us-gaap:Revenues
us-gaap:StatementBusinessSegments
(None,)
Revenuesus-gaap: Statement Business Segments
us-gaap:Revenues
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Revenuesus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:Revenues
us-gaap:ConsolidationItems
(None,)
Revenuesus-gaap: Consolidation Items
us-gaap:Assets
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
(None,)
Assetsus-gaap: Investments By Consolidated And Nonconsolidated Entities
us-gaap:Assets
us-gaap:ConsolidatedEntities
(None,)
Assetsus-gaap: Consolidated Entities
us-gaap:Liabilities
us-gaap:InvestmentsByConsolidatedAndNonconsolidatedEntities
(None,)
Liabilitiesus-gaap: Investments By Consolidated And Nonconsolidated Entities
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:ConsolidatedEntities, us-gaap:PropertyPlantAndEquipmentByType
('bsig:ConsolidatedEntityExcludingConsolidatedFunds', None)
Property Plant And Equipment Grossus-gaap: Consolidated Entities, us-gaap: Property Plant And Equipment By Type
us-gaap:Goodwill
us-gaap:StatementBusinessSegments
(None,)
Goodwillus-gaap: Statement Business Segments
us-gaap:EquitySecuritiesFvNi
us-gaap:ConsolidatedEntities, us-gaap:FairValueByFairValueHierarchyLevel
('bsig:ConsolidatedEntityExcludingConsolidatedFunds', None)
Equity Securities Fv Nius-gaap: Consolidated Entities, us-gaap: Fair Value By Fair Value Hierarchy Level
us-gaap:LongTermDebt
us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType
(None, 'us-gaap:FairValueInputsLevel2', 'us-gaap:SeniorNotes')
Long Term Debtus-gaap: Debt Instrument, us-gaap: Fair Value By Fair Value Hierarchy Level, us-gaap: Longterm Debt Type
us-gaap:MinorityInterest
us-gaap:ConsolidatedEntities
(None,)
Minority Interestus-gaap: Consolidated Entities
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
(None, 'us-gaap:NoncontrollingInterest')
Stockholders Equity Including Portion Attributable To Noncontrolling Interestus-gaap: Consolidated Entities, us-gaap: Statement Equity Components
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
('bsig:ConsolidatedEntityExcludingConsolidatedFunds', None)
Stockholders Equity Including Portion Attributable To Noncontrolling Interestus-gaap: Consolidated Entities, us-gaap: Statement Equity Components
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents
(None,)
Stockholders Equity Including Portion Attributable To Noncontrolling Interestus-gaap: Statement Equity Components
us-gaap:MinorityInterest
us-gaap:ConsolidatedEntities
(None,)
Minority Interestus-gaap: Consolidated Entities
us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents
(None,)
Stock Issued During Period Value New Issuesus-gaap: Statement Equity Components
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
('bsig:ConsolidatedEntityExcludingConsolidatedFunds', None)
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Valueus-gaap: Consolidated Entities, us-gaap: Statement Equity Components
us-gaap:NetIncomeLoss
us-gaap:StatementBusinessSegments
(None,)
Net Income Lossus-gaap: Statement Business Segments
us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Net Income Lossus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:NetIncomeLoss
us-gaap:ConsolidationItems
(None,)
Net Income Lossus-gaap: Consolidation Items
us-gaap:PaymentsToAcquireInvestments
us-gaap:ConsolidatedEntities
(None,)
Payments To Acquire Investmentsus-gaap: Consolidated Entities
us-gaap:Dividends
us-gaap:ConsolidatedEntities, us-gaap:StatementEquityComponents
('bsig:ConsolidatedEntityExcludingConsolidatedFunds', None)
Dividendsus-gaap: Consolidated Entities, us-gaap: Statement Equity Components