SEAS


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

Table of contents



us-gaap:CommonStockValue
us-gaap:ConsolidatedEntities

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostsAndExpenses

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpense

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:OperatingIncomeLoss
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ProfitLoss

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService

us-gaap:Revenues

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets
us-gaap:ConsolidatedEntities

us-gaap:Liabilities
us-gaap:ConsolidatedEntities

us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:ConsolidatedEntities

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent
us-gaap:ConsolidatedEntities
us-gaap:ConsolidatedEntities
us-gaap:Cash

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:CashAndCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:ConsolidatedEntities

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:OtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass, us-gaap:StatementBusinessSegments
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccruedLiabilitiesCurrent
us-gaap:ConsolidatedEntities

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:LiabilitiesCurrent
us-gaap:ConsolidatedEntities

us-gaap:LongTermDebtCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
us-gaap:LeaseContractualTerm

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree
us-gaap:LeaseContractualTerm

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour
us-gaap:LeaseContractualTerm

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive
us-gaap:LeaseContractualTerm

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
us-gaap:LeaseContractualTerm

us-gaap:OperatingLeaseLiability
us-gaap:LeaseContractualTerm

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue
us-gaap:LeaseContractualTerm

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
us-gaap:LeaseContractualTerm

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue
us-gaap:ConsolidatedEntities

us-gaap:AdditionalPaidInCapitalCommonStock
us-gaap:ConsolidatedEntities

us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:ConsolidatedEntities

us-gaap:TreasuryStockValue
us-gaap:ConsolidatedEntities

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss

us-gaap:ShareBasedCompensation
us-gaap:IncomeStatementLocation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:RepaymentsOfLongTermDebt
us-gaap:LongtermDebtType

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:SubsequentEventType

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:IncomeTaxAuthority
us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
seas:AggregatePrincipalAmountPartiallyRedeemed
us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
seas:AggregatePrincipalAmountRedeemed

seas:CostOfFoodMerchandiseAndOtherRevenues
us-gaap:LongtermDebtType
seas:DiscountInitiallyRecorded

seas:IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesExcludingOtherAccruedLiabilities

seas:IncreaseDecreaseRightOfUseAssetsAndOperatingLeaseObligations

seas:OtherFinancingArrangements
us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
seas:PaymentsForRestructuringChargesAndOtherSeparationCosts
us-gaap:PlanName
seas:PercentageOfBonusInCash
us-gaap:AwardType, us-gaap:PlanName
seas:PercentageOfBonusInUnits
us-gaap:PlanName
seas:PercentageOfUnitsEarned
us-gaap:PlanName
seas:PerformanceForTestPeriod

seas:RightOfUseAssetsObtainedInExchangeForFinancingLeaseObligations

seas:SeveranceAndOtherSeparationCostsIncurred
us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
seas:SeveranceChargesAndOtherSeparationCostsIncurred
us-gaap:RestructuringPlan
us-gaap:PlanName
seas:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsVestRangeOnAnnualEligibleAwardVestingRightsPercentage
us-gaap:Range, us-gaap:AwardType, us-gaap:PlanName

seas:UnrealizedGainLossOnDerivativesRecognizedInAccumulatedOtherComprehensiveIncomeLoss

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:CapitalExpendituresIncurredButNotYetPaid
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentRedemptionPricePercentage
us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:LongtermDebtType

us-gaap:DepreciationAndAmortization

us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
us-gaap:LongtermDebtType
us-gaap:InterestPaid

us-gaap:LossContingencyDamagesSoughtValue
us-gaap:Range
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:PaymentsForLegalSettlements

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:ProceedsFromIssuanceOfSeniorLongTermDebt

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:ProceedsFromRepaymentsOfLinesOfCredit

us-gaap:ProceedsFromStockOptionsExercised
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:RepaymentsOfLinesOfCredit
us-gaap:AwardType, us-gaap:Vesting
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents
us-gaap:ShareRepurchaseProgram
us-gaap:StockRepurchasedDuringPeriodValue

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

seas:AdditionalCapitalPaymentsRequiredForProjectCompletion

seas:AdditionalMinimumRentDeferred

seas:AggregatePrincipalAmountOutstanding

seas:AllowanceForDoubtfulAccountsReceivableOnInstallmentArrangements
us-gaap:DebtInstrument
seas:DebtInstrumentPeriodicPaymentPercentageOfPrincipalAmount
us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:LongtermDebtType
seas:DebtInstrumentRedeemableAccruedAndUnpaidInterestPricePercentage

seas:DeferredPercentageRent

seas:DeferredTaxAssetsAcquisitionAndDebtRelatedCosts

seas:DeferredTaxAssetsInterestLimitation

seas:DeferredTaxAssetsLeaseObligations

seas:DeferredTaxLiabilitiesRightOfUseAssets

seas:DefiniteAndIndefiniteLivedTradeNamesAndTrademarksNet
us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:LongtermDebtType
seas:InitialAggregatePrincipalAmountAllowableRedeemablePercentage

seas:LeaseLiability

seas:LeaseRightOfUseAsset

seas:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFour
us-gaap:ConsolidatedEntities
seas:LossesInExcessOfInvestmentInSubsidiary

seas:PercentageOfBeginningOfPeriodDeferredRevenueBalanceRemainingAtEndOfPeriod
us-gaap:LongtermDebtType
seas:PercentageOfInterestInSubsidiary

seas:PrepaidMarketingAndAdvertisingCosts

us-gaap:AccountsPayableAndOtherAccruedLiabilitiesCurrent

us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent

us-gaap:CapitalizedComputerSoftwareAccumulatedAmortization

us-gaap:CapitalizedComputerSoftwareNet

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiabilityNoncurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation
us-gaap:ProductOrService
us-gaap:Range
us-gaap:ContractualObligation

us-gaap:DebtInstrumentCarryingAmount
us-gaap:CreditFacility
us-gaap:DebtInstrument
us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount
us-gaap:LongtermDebtType
us-gaap:SubsequentEventType
us-gaap:DebtInstrument
us-gaap:DebtInstrumentInterestRateEffectivePercentage

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
dei:LegalEntity
us-gaap:DeferredCosts

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities
us-gaap:BalanceSheetLocation
us-gaap:DeferredRentCredit

us-gaap:DeferredRevenueCurrent
dei:LegalEntity, us-gaap:BalanceSheetLocation
us-gaap:DeferredRevenueNoncurrent

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLegalSettlements

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:FinanceLeaseLiability
us-gaap:BalanceSheetLocation
us-gaap:FinanceLeaseLiabilityCurrent
us-gaap:BalanceSheetLocation
us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount
us-gaap:BalanceSheetLocation
us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:InterestPayableCurrent

us-gaap:InventorySuppliesNetOfReserves

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
us-gaap:LeaseContractualTerm

us-gaap:LettersOfCreditOutstandingAmount
us-gaap:CreditFacility, us-gaap:SubsequentEventType
us-gaap:LineOfCredit
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LongTermDebtFairValue
us-gaap:FairValueByMeasurementFrequency

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards

us-gaap:OtherInventoryNetOfReserves

us-gaap:PrepaidInsurance

us-gaap:RestrictedCashAndCashEquivalents
us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
us-gaap:RestructuringReserve

us-gaap:RetailRelatedInventoryMerchandise

us-gaap:SelfInsuranceReserve
us-gaap:BalanceSheetLocation

us-gaap:SelfInsuranceReserveCurrent
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
us-gaap:ConsolidatedEntities, us-gaap:ShareRepurchaseProgram
us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

Plots across concepts


IncomeStatement
Comprehensive Income Net Of Tax
Expenses
Other Nonoperating Income Expense
Balance Sheet
Stockholders Equity
Assets
Inventory Net
Current Assets
Other Assets Current
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Deferred Income Tax Liabilities Net
Stockholders Equity
Retained Earnings Accumulated Deficit
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Inventories
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:CommonStockValue ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁██0.9530.9480.9460.9440.9440.9430.940.940.9390.9370.9340.9320.9310.9290.9260.9260.9250.9190.9190.9190.9180.9040.9030.9030.9030.9020.9020.90.90.8990.8990.8960.8966.6246.616NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁80.17778.458NA78.15478.09378.213NA78.80482.16783.354NA87.54286.88586.209NA86.28485.74585.373NA85.44785.35883.824NA86.186.29186.097NA87.02487.18988.415NA90.20688.222662.144NA666.992665.92659.384
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁78.98678.458NA78.15478.09378.213NA78.16481.5283.354NA86.61686.39986.209NA86.01285.74585.373NA85.2985.22683.824NA86.00686.18686.097NA86.71586.87788.415NA89.6188.222662.144NA659.688659.584659.384
us-gaap:EarningsPerShareBasic █▄▄▃▂▄▄▇▆▄▅▇▅▄▄▆▁▄▅▆▅▃▅▇▅▄▄▇▆▄▅▇▅▅▅▅▅▅1.62-0.57-0.5800000000000001-1.01-1.68-0.72-0.311.250.65-0.44-0.131.110.26-0.73-0.240.64-2.05-0.72-0.140.770.21-1.0-0.131.140.07-0.51-0.291.010.43-0.56-0.151.34-0.18-0.06125-0.013750.140.05875-0.06875
us-gaap:EarningsPerShareDiluted █▄▄▃▂▄▄▇▆▄▅▇▅▄▄▆▁▄▅▆▅▃▅▇▅▄▄▇▆▄▅█▅▅▅▅▅▅1.59-0.57-0.5800000000000001-1.01-1.68-0.72-0.311.240.64-0.44-0.131.10.26-0.73-0.240.64-2.05-0.72-0.140.770.21-1.0-0.131.140.07-0.51-0.291.00.43-0.56-0.151.33-0.18-0.06125-0.013750.138750.05875-0.06875
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
 TTM Greenblatt ROC _ _▇▄▄▄▃▄▅▇▆▄▅▇▆▄▄▆▁▃▄▇▅▃▅▇▅▄▄▇▆▄▅█▅▄▅167.371-18.902-23.373-59.486-101.23-57.574-5.289153.52896.264-31.30310.874151.7355.21-66.147-10.886108.822-222.564-76.735-11.539152.64138.05-119.567-6.975170.8645.75-50.199-22.497161.91580.587-59.4080.505205.59430.98-35.873-1.88NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:ComprehensiveIncomeNetOfTax █▄▄▃▂▄▅▇▆▄▅▇▆▄▅▆▁▄▅▇▅▃▅▇▅▄127.762-44.884-45.536-79.237-130.174-55.815-23.4798.40249.785-39.084-13.71597.13725.173-55.353-15.52757.04-176.556-58.725-0.2367.14413.297-93.299-8.32287.212.062-44.471NANANANANANANANANANANANA
us-gaap:CostsAndExpenses ▃▂▂▂▁▂▄▄▄▃▃▄▄▃▃▄█▃▃▄▄▄▃▄▄▃▃▄▄▃▃▄▅▃▃▄▄▃272.413190.822177.448165.603119.256211.135303.3320.138309.728251.878269.154331.445336.711283.313276.391328.89596.314263.092279.136332.677333.086339.808274.832326.079345.866264.791287.034333.919324.564271.698271.454332.795380.312274.483265.053338.393332.796260.721
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▇▄▄▄▃▄▅▇▆▄▅▇▆▄▄▆▁▃▄▇▅▃▅█▅▄▄▇▆▄▅█▅▄▅█▆▄136.223-50.032-55.365-87.629-123.137-76.715-25.56132.15174.54-52.127-18.154132.28934.691-86.123-31.0188.77-242.222-102.93-29.98137.43223.353-134.006-21.792155.89.461-70.638-42.839140.65359.994-79.471-20.433184.589-24.268-64.406-27.59154.55464.91-74.948
us-gaap:IncomeTaxExpenseBenefit ▅▄▄▄▅▃▄▆▅▄▄▆▅▃▄▆▁▂▃█▅▂▄▇▅▃▃▇▆▃▄█▄▃▃█▆▃8.461-5.148-9.829-8.3927.892-20.196-1.37734.12321.889-15.107-7.10136.30111.994-23.279-10.56933.736-66.372-41.801-18.07571.7775.585-49.957-10.76457.853.652-27.04-17.39353.47722.658-30.04-6.92664.39-8.414-24.046-18.79162.29725.79-29.814
us-gaap:InterestExpense ███▇▄▃▃▄▄▄▄▃▃▃▃▃▃▃▃▁▁▁▁▁▁▃▃▄▃▃▄▄▄▇▅▇▇▆31.12730.95631.70128.14521.90819.15320.11521.46321.80320.79720.9419.520.56119.91320.12820.1619.45218.26118.36415.13714.57914.58114.64215.01915.73220.17820.45620.85720.63820.04620.98621.01822.92628.60625.16329.54528.90927.809
us-gaap:NetIncomeLoss █▄▄▃▂▄▄▇▆▄▅▇▆▄▅▆▁▄▅▇▅▃▅▇▅▄▄▇▆▄▅█▅▄▅▇▆▄127.762-44.884-45.536-79.237-131.029-56.519-24.18398.02852.651-37.02-11.05395.98822.697-62.844-20.44155.034-175.85-61.129-11.90565.65517.768-84.049-11.02897.955.809-43.598-25.44687.17637.336-49.431-13.507120.199-15.854-40.36-8.79992.25739.12-45.134
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic █▄▄▃▂▄▄▇▆▄▅▇▆▄▅▆▁▄▅▇▅▃▅▇▅▄▄▇▆▄▅█▅▄▅▇▆▄127.762-44.884-45.536-79.237-131.029-56.519-24.18398.02852.651-37.02-11.05395.98822.697-62.844-20.44155.034-175.85-61.129-11.90565.65517.768-84.049-11.02897.955.809-43.598-25.44687.17637.336-49.431-13.507120.199-15.854-40.36-8.79992.25739.12-45.134
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted █▄▄▃▂▄▄▇▆▄▅▇▆▄▅▆▁▄▅▇▅▃▅▇▅▄▄▇▆▄▅█▅▄▅▇▆▄127.762-44.884-45.536-79.237-131.029-56.519-24.18398.02852.651-37.02-11.05395.98822.697-62.844-20.44155.034-175.85-61.129-11.90565.65517.768-84.049-11.02897.955.809-43.598-25.44687.17637.336-49.431-13.507120.199-15.854-40.36-8.79992.25739.12-45.134
us-gaap:OperatingIncomeLoss ▇▄▄▄▃▄▅▇▆▄▅▇▆▄▄▆▁▃▄▇▅▃▅▇▅▄▄▇▆▄▅█▅▄▅█▆▄167.371-18.902-23.373-59.486-101.23-57.574-5.289153.52896.264-31.30310.874151.7355.21-66.147-10.886108.822-222.564-76.735-11.539152.64138.05-119.567-6.975170.8645.75-50.199-22.497161.91580.587-59.4080.505205.59430.98-35.873-1.88183.86293.086-48.279
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents seas:AccumulatedGainLossNetCashFlowHedgeNANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▃▃▂▃▃▃▃▄▄▃▄▄▃▃▃▄▃▄▃▃▃▄▅▃▂▂▄▄▃▃▃▃▄▄▁▄▆█-0.021-0.174-0.2910.0020.0010.012-0.1560.0860.079-0.0270.0620.0590.042-0.0630.0040.108-0.0830.086-0.077-0.072-0.1180.1420.382-0.041-0.209-0.2610.1140.0560.045-0.0170.0480.0130.1070.073-0.5470.2370.7331.14
us-gaap:ProfitLoss █▃▃▂▁▃▄▇▆▄▄▇▅▃▄127.762-44.884-45.536-79.237-131.029-56.519-24.18398.02852.651-37.02-11.05395.98822.697-62.844-20.441NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▇▃▃▂▁▃▅▇▆▄▅▇▆▄▄▇▆▃▄▇▆▄▄▇▆▄▄▇▆▄▄█▆▄▄█▆▄439.784171.92154.075106.11718.026153.561298.011473.666405.992220.575280.028483.175391.921217.166265.505437.712373.75186.357267.597485.318371.136220.241267.857496.939391.616214.592264.537495.834405.151212.29271.959538.389411.292238.61263.173522.255425.882212.442
us-gaap:Revenues ▇▃▃▂▁▃▅▇▆▄▅▇▆▄▄▇▆▃▄▇▆▄▄▇▆▄▄▇▆▄▄█▆▄▄█▆▄439.784171.92154.075106.11718.026153.561298.011473.666405.992220.575280.028483.175391.921217.166265.505437.712373.75186.357267.597485.318371.136220.241267.857496.939391.616214.592264.537495.834405.151212.29271.959538.389411.292238.61263.173522.255425.882212.442
us-gaap:SellingGeneralAndAdministrativeExpense ▃▂▁▁▁▂█▆▆▃▃▄▆▅▄▅▆▄▃▅▆▆▃▄▇▄▃▄▅▄▃▄▅▃▂▅▄▃43.1931.46422.49224.33521.10426.95487.164.63267.20542.76443.64851.54971.00363.52452.49654.7769.15252.41842.02357.14872.03267.35441.9947.68473.3251.07835.29150.43858.56445.07637.71747.42662.16839.98734.34958.80749.02842.736
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:Assets █▆▆▇▆▅▃▃▃▃▁▂▂▂▁▁▂▄▄▄▄▄▄▅▄▅▅▅▅▆▆▇▆▆▅2786.722573.3672566.3582650.1812577.3982438.3942300.5182270.812296.1342306.1942115.6022211.9772163.4942158.2332085.7822122.0792173.8412372.9812378.7712379.8162419.3742416.8252391.1342475.3982435.8032443.8632442.4742531.4172525.4572544.5012582.2732658.1362632.9472571.6452521.052NANANA
us-gaap:Liabilities █▇▇▇▆▄▃▃▄▃▁▁▂▂▁▁▂▂▂▂▃▃▂▂▂▂▁▂▂▂▂▂▂▄▃2808.0342719.1592672.1612716.7022568.2772302.282089.6262039.1072164.5862079.7741850.4081838.6411893.8131920.1551798.3161822.5731934.6071967.1421917.5561921.2732021.6462015.7731887.0141934.6931950.7441943.251862.9391911.31970.0571957.091928.1411928.8492007.1422161.5432071.204NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▆▆▇▆▅▃▃▃▃▁▂▂▂▁▁▂▄▄▄▄▄▄▅▄▅▅▅▅▆▆▇▆▆▅2786.722573.3672566.3582650.1812577.3982438.3942300.5182270.812296.1342306.1942115.6022211.9772163.4942158.2332085.7822122.0792173.8412372.9812378.7712379.8162419.3742416.8252391.1342475.3982435.8032443.8632442.4742531.4172525.4572544.5012582.2732658.1362632.9472571.6452521.052NANANA
us-gaap:StockholdersEquity ▂▁▁▂▂▃▄▄▃▄▄▅▄▄▄▅▄▅▆▆▅▅▆▆▆▆▇▇▇▇▇█▇▅▆-21.314-145.792-105.803-66.5219.121136.114210.892231.703131.548226.42265.194373.336269.681238.078287.466299.506239.234405.839461.215458.543397.728401.052504.12540.705485.059500.613579.535620.117555.4587.411654.132729.287625.805410.102449.848NANANA
 us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities srt:ParentCompanyNANA-105.803NANANA210.892NANANA265.194NANANA287.466NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital████▇▇█▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▇▇▇▇███▁▁681.964685.253680.36674.108670.513667.333673.893671.234669.482664.141663.834660.231653.714647.286641.324637.837634.616624.671621.343618.449616.149632.775624.765623.044621.497639.114655.471655.108654.542672.312689.394688.927686.445457.242456.923NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:CommonStock█████▇▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▅▅▁▁0.9530.9480.9460.9440.9440.9430.940.940.9390.9370.9340.9320.9310.9290.9260.9260.9250.9190.9190.9190.9180.9040.9030.9030.9030.9020.9020.90.90.8990.8990.8960.8960.8280.827NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▃▁▂▂▃▅▆▇▅▄▅▅▄▃▄▅▄▆▇▇▇▆██▇▇██▇▇▇█▆▆▇-288.922-416.684-371.8-326.264-247.027-115.998-59.479-35.296-133.324-185.975-148.955-137.902-233.89-256.587-194.837-174.396-229.44-53.597.51819.415-37.61-55.36946.4657.472-22.367-28.17633.51658.962-4.104-41.447.99139.265-62.862-47.008-6.648NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:TreasuryStock▁▁▁▁▁▁▁▁▁▄▄▆▆▆▆▆▆▆▆▆▆▆▆▆▇▇▇▇▇██-415.309-415.309-415.309-415.309-415.309-415.309-402.903-402.903-402.903-252.903-252.903-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-124.871-109.871-109.871-109.871-94.871-94.869-44.163-44.163NANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:AssetsCurrent █▆▅▆▅▃▂▁▂▂▁▂▂▁▁▁▁▁▁▁▁▁▁▂▂▁▁▂▂▂▂▃▂▂▂751.562532.303507.437562.768459.328293.721169.149151.041168.321172.843146.567241.621163.096153.362118.775147.532143.816136.058153.692150.5145.318143.587109.057225.798175.604150.411142.204221.77185.937198.121243.059316.392222.563177.341158.633NANANA
 us-gaap:Cash us-gaap:ConsolidatedEntities srt:ParentCompanyNANA0.455NANANA0.169NANANA0.136NANANA0.47NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue █▆▆▇▅▃▁▁▁▁▁▂▁▁▁▁▁▁▂▁▁▁▁▂▁▁▁▂▂▁▂▃▂▁▁▂▂▂615.791430.567433.909488.416375.683192.7639.94650.91743.60151.8634.073125.66933.45239.34333.17852.34233.83433.21768.95855.80729.23441.49218.971119.65152.93143.36943.906115.19263.00661.24116.841210.51693.93659.36745.675142.84397.7583.493
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents █▆▆▆▅▃▁▁▁▁▁▂▁▁▁▁▁▁▁617.717432.708435.225489.871377.173193.72840.92552.5944.81952.81435.007127.37234.7240.65133.99753.47935.05434.58769.378NANANA19.623NANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent █▄▂▁▁▃▄▄▅▅▄▅▆▄▂▄▄▃▂▄▅▃▃▃▄▂▂▃▃▂▃▄▅▃▃90.41952.97830.4125.55328.61543.35849.72850.75163.28258.69257.9866.84272.55856.43138.449.37854.39841.24236.72649.3858.11644.53139.53848.53456.09438.5137.00243.63146.8138.45141.50952.50559.91342.53441.149NANANA
us-gaap:InventoryNet ▁▂▃▄▅▄▄▄▇▇▅▄▆▅▃▃▅▄▂▄▇▆▃▃▆▅▄▅▇▇▅▅█▇▅25.11128.8530.734.1835.82434.62733.16334.78543.21942.72435.81434.78239.76937.64830.88732.338.21133.47928.68433.41542.03438.66431.21332.26738.74937.87733.13436.76644.30841.78836.20937.88646.15142.48436.587NANANA
us-gaap:OtherAssetsCurrent NANA8.486NANANA8.74NANANA9.022NANANA6.799NANANA7.476NANANA6.657NANANA5.882NANANA4.378NANANA3.495NANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▃▃▁▂▂▃█▂▂▃▂▁▂▃▂▁▂▄▃▁▂▂▂▂▃▃▃▂▃▃▃▁▂▄▂20.24119.90812.41814.61919.20622.97646.31214.58818.21919.56718.714.32817.31719.9416.3113.51217.37328.1219.32411.89815.93418.916.3618.07820.56223.38720.89418.09622.19623.53419.61314.1716.29826.69117.817NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:PropertyPlantAndEquipmentGross █████▇▇▇▆▆▆▆▅▅▅▄▄▄▃▃▃▃▃▂▂▂▁▁▁3314.863289.3073272.7053274.4423267.1333258.2183209.5213171.4023148.1343116.6883057.0383069.5233042.913000.2082952.0742934.9152926.5852865.3752828.4462803.4772788.7052751.9392748.1612706.7582678.1282647.1722612.0522580.4532564.38NA2485.8052452.2292428.7922380.0082343.561NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ██▇▇▇▇▆▆▆▆▆▆▅▅▅▅▄▄▄▄▃▃▃▃▂▂▂▁▁1676.3661646.261611.7451584.141546.81511.4681476.0591453.1861426.6251399.1151365.0061380.7641343.4461308.781276.8331253.41219.2711187.6441161.6311126.2071088.2681052.9071029.165993.668953.082907.175867.421829.28789.198NA714.305680.922642.278606.462568.918NANANA
us-gaap:PropertyPlantAndEquipmentNet ▁▁▂▃▅▆▅▅▅▅▄▃▄▄▃▃▄▃▂▃▄▄▅▅▅▆▆▆▇█▇▇█▇▇1638.4941643.0471660.961690.3021720.3331746.751733.4621718.2161721.5091717.5731692.0321688.7591699.4641691.4281675.2411681.5151707.3141677.7311666.8151677.271700.4371699.0321718.9961713.091725.0461739.9971744.6311751.1731775.1821780.4061771.51771.3071786.5141773.5461774.643NANANA
us-gaap:Goodwill ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁██████████████████66.27866.27866.27866.27866.27866.27866.27866.27866.27866.27866.27866.27866.27866.27866.27866.27866.278335.61335.61335.61335.61335.61335.61335.61335.61335.61335.61335.61335.61335.61335.61335.61335.61335.61335.61NANANA
 us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass,us-gaap:StatementBusinessSegments us-gaap:TrademarksAndTradeNames,seas:SeaWorldOrlandoReportingUnitNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:IntangibleAssetsNetExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass us-gaap:TrademarksAndTradeNamesNANA157.0NANANA157.0NANANA158.343NANANA159.802NANANA161.264NANANA162.726NANANA164.188NANANA163.508NANANANANANANA
us-gaap:DeferredTaxAssetsLiabilitiesNet NANA7.075NANANANANANANA12.816NANANA32.82NANANANANANANANANANANA-24.492NANANA-0.889NANANA23.761NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▁▂▃▃▄▅▅▆▇█133.909134.846136.572137.708138.905140.101141.438142.538144.634145.807NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▃▂▂▂▂▁▁▄▄▅▆▆▆▇▇██15.29815.45115.26414.94415.10415.16513.65213.80614.32915.42114.73519.51320.15419.18317.9719.24619.88720.57721.26820.68619.60720.21919.92715.77213.2230.32731.31632.95639.58640.11740.75342.37145.15347.83950.082NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:AccruedLiabilitiesCurrent ▅▄▅▅▃▂█▂▂▃▂▃▃▂▂▂▂▁▂▂▂▁▁▂▂▂▂▃▂▂▁▃▂▃▂51.24341.34850.9547.5331.6920.62581.84123.91220.80829.06523.06634.55332.70125.49119.61223.4919.14112.77923.4120.48117.65112.74811.14320.66916.88323.92720.14930.68520.07525.79515.26431.04823.31131.67219.35NANANA
us-gaap:ContractWithCustomerLiabilityCurrent █▆▃▂▃▂▁▂▄▄▁▁▄238.694193.374130.759129.164133.838120.38104.416114.536163.14151.253101.11108.021157.986NA79.55493.923145.754NANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent █▅▃▄▅▄▅▄█▆▃▃▅▅▂▂▅▅▂▁▅▅▁▂▄▄▁▂▄▃▂▂▄▄▂507.88371.344317.121351.281366.938326.749402.66343.595496.26424.736310.671298.882368.004388.653253.47257.803369.56367.849263.612234.949392.378393.286229.314248.798330.573328.659221.085248.352325.136312.41252.694271.796354.506340.13246.281NANANA
us-gaap:LongTermDebtCurrent ▃▁▁▁▁▁▃▃█▄▃▁▁▄▂▁▃▅▃▁▄▅▂▁▁▂▁▁▁▁▁▁▁▃▁65.50515.50515.50515.50515.50515.50565.50565.505160.50580.50545.50523.70723.70778.70738.70723.70763.70791.551.71316.8581.8591.8531.8516.8516.8544.0514.0514.0514.0514.0514.0514.0514.0551.3321.33NANANA
us-gaap:OperatingLeaseLiabilityCurrent ▁▂▅▆▆▇▆▇█3.213.2873.7573.8053.8183.9253.8963.9144.105NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent ▅▅▅▆▆▄▄▃▃█▇▇█▇▃▃▂▂▁▁▁▁▁▂▂▂▄▂▂▃▂▂▂▂▂10.70610.2699.4712.76912.7818.9547.5915.4665.07418.14215.59715.74618.05114.7415.174.5193.8181.8930.3951.4550.6261.6081.4792.0112.0022.0267.7062.1772.6495.8052.7152.3492.5522.9182.699NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:LongTermDebtNoncurrent ▇███▆▄▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▄▄2122.7082174.9782177.1372179.5492006.5821790.8911482.6191485.6721488.71491.7021494.6791489.2891494.0661498.8391503.6091508.3341513.1171517.8551531.0691540.2551543.1371546.0161548.8931581.3091584.3651586.4351589.4031592.3691622.4391624.7981627.1831629.4891631.8291798.621802.644NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet ▃▁▂▅█17.78611.59515.77224.23231.893NA42.773NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▄▄▄▄▄▄▃▄▄▃▃▃▃▃▄▅▅▅▅█▇▆▄▅▃▂▁▁▁▁▁▁▁▂▁41.40942.23941.98740.55140.75539.50237.23538.17338.75935.21734.34731.88631.74332.66341.23749.20751.9349.33352.84272.81963.56957.7540.64647.16331.20623.98320.69120.34921.07318.78118.48818.62820.80722.79322.279NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▁▂▂▃▄▅▆▇█118.251119.003120.144121.089122.109123.077124.339125.29127.099NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA12.518NANANA13.67114.0214.24414.225NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo us-gaap:LeaseContractualTerm seas:LandLeaseNANA10.401NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo us-gaap:LeaseContractualTerm seas:OtherOperatingLeasesNANA2.117NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA12.105NANANA12.67413.67113.89513.879NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree us-gaap:LeaseContractualTerm seas:LandLeaseNANA10.401NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree us-gaap:LeaseContractualTerm seas:OtherOperatingLeasesNANA1.704NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA11.96NANANA12.1312.67412.89812.898NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour us-gaap:LeaseContractualTerm seas:LandLeaseNANA10.401NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour us-gaap:LeaseContractualTerm seas:OtherOperatingLeasesNANA1.559NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA11.712NANANA11.97312.1312.35512.355NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive us-gaap:LeaseContractualTerm seas:LandLeaseNANA10.401NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive us-gaap:LeaseContractualTerm seas:OtherOperatingLeasesNANA1.311NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA235.648NANANA247.424NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive us-gaap:LeaseContractualTerm seas:LandLeaseNANA234.031NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive us-gaap:LeaseContractualTerm seas:OtherOperatingLeasesNANA1.617NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:StockholdersEquity ▂▁▁▂▂▃▄▄▃▄▄▅▄▄▄▅▄▅▆▆▅▅▆▆▆▆▇▇▇▇▇█▇▅▆-21.314-145.792-105.803-66.5219.121136.114210.892231.703131.548226.42265.194373.336269.681238.078287.466299.506239.234405.839461.215458.543397.728401.052504.12540.705485.059500.613579.535620.117555.4587.411654.132729.287625.805410.102449.848NANANA
 us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities srt:ParentCompanyNANA-105.803NANANA210.892NANANA265.194NANANA287.466NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital████▇▇█▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▆▆▆▆▇▇▇▇███▁▁681.964685.253680.36674.108670.513667.333673.893671.234669.482664.141663.834660.231653.714647.286641.324637.837634.616624.671621.343618.449616.149632.775624.765623.044621.497639.114655.471655.108654.542672.312689.394688.927686.445457.242456.923NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:CommonStock█████▇▇▇▇▇▇▇▇▇▇▇▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▅▅▁▁0.9530.9480.9460.9440.9440.9430.940.940.9390.9370.9340.9320.9310.9290.9260.9260.9250.9190.9190.9190.9180.9040.9030.9030.9030.9020.9020.90.90.8990.8990.8960.8960.8280.827NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▃▁▂▂▃▅▆▇▅▄▅▅▄▃▄▅▄▆▇▇▇▆██▇▇██▇▇▇█▆▆▇-288.922-416.684-371.8-326.264-247.027-115.998-59.479-35.296-133.324-185.975-148.955-137.902-233.89-256.587-194.837-174.396-229.44-53.597.51819.415-37.61-55.36946.4657.472-22.367-28.17633.51658.962-4.104-41.447.99139.265-62.862-47.008-6.648NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:TreasuryStock▁▁▁▁▁▁▁▁▁▄▄▆▆▆▆▆▆▆▆▆▆▆▆▆▇▇▇▇▇██-415.309-415.309-415.309-415.309-415.309-415.309-402.903-402.903-402.903-252.903-252.903-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-124.871-109.871-109.871-109.871-94.871-94.869-44.163-44.163NANANANANANANA
us-gaap:CommonStockValue ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁██0.9530.9480.9460.9440.9440.9430.940.940.9390.9370.9340.9320.9310.9290.9260.9260.9250.9190.9190.9190.9180.9040.9030.9030.9030.9020.9020.90.90.8990.8990.8960.8966.6246.616NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ███▇▇▆▇▇▆▆▆▅▅▄▄▃▃▂▂▁▁▃▂▂▂▃▅681.964685.253680.36674.108670.513667.333673.893671.234669.482664.141663.834660.231653.714647.286641.324637.837634.616624.671621.343618.449616.149632.775624.765623.044621.497639.114655.471NANANA689.394NANANANANANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▃▁▂▂▃▅▆▇▅▄▅▅▄▃▄▅▄▆▇▇▇▆██▇▇██▇▇▇█▆▆▇-288.922-416.684-371.8-326.264-247.027-115.998-59.479-35.296-133.324-185.975-148.955-137.902-233.89-256.587-194.837-174.396-229.44-53.597.51819.415-37.61-55.36946.4657.472-22.367-28.17633.51658.962-4.104-41.447.99139.265-62.862-47.008-6.648NANANA
 us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ConsolidatedEntities srt:ParentCompanyNANA-371.8NANANA-59.479NANANA-148.955NANANA-194.837NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:TreasuryStockValue █████████▅▅▃▃▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁415.309415.309415.309415.309415.309415.309402.903402.903402.903252.903252.903154.871154.871154.871154.871154.871154.871154.871154.871154.871154.871154.871154.871124.871109.871109.871109.87194.87194.86944.16344.163NANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▁5.6344.473NA3.4843.32-3.601NA1.1624.0843.1983.5325.1835.8927.5453.9383.24511.9064.1142.9192.5452.46129.591.7271.5491.3981.8530.4440.570.5730.7621.3222.4821.9020.32NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities █▃▂▁▁▁▃▆▅▃▃▆▅▃▂▅229.68518.393-13.08-39.323-27.559-40.76734.733146.297129.69837.68826.477140.644106.49720.3174.67899.476NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▅▇▅▆█▃▄▄▁▃▄▃▂▃▅▄-29.683-15.298-33.46-22.016-4.45-49.249-42.337-40.066-64.903-47.887-38.802-43.378-52.027-45.822-32.75-34.948NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃▃▃▇▇█▃▁▂▄▁▃▂▄▃▂-14.993-5.612-8.106174.037215.454242.819-4.061-98.46-72.7928.006-80.04-4.614-60.40132.1598.59-46.103NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect █▃▂▆█▇▃▄▃▄▁▆▃▃▃▄▃▂185.009-2.517-54.646112.698183.445152.803-11.6657.771-7.99517.807-92.36592.652-5.9316.654-19.48218.4250.467-34.791NANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▅▄▄▄▅▃▄▆▅▄▄▆▅▃▄▆▁▂▃█▅▂▄▇▅▃▃▇▆▃▄█▄▃▃█▆▃6.455-5.773-10.109-8.3927.892-20.805-1.70734.24222.069-16.606-7.58436.30111.994-23.817-12.0433.736-66.372-41.801-18.46871.7775.585-49.957-11.21658.732.772-27.04-17.35653.79424.334-32.772-7.91264.39-8.414-24.046-19.29462.29725.79-29.814
us-gaap:IncreaseDecreaseInAccountsReceivable █▆▄▃▁▂▃▂▄▃▂▂▅▅▂▂▅▄▁▂▅▄▂▂▅▃▂▃▄▃▂▂▅▃▂▂▅▃46.79728.5485.63-4.042-19.344-7.005-5.048-12.854.7042.329-12.459-7.05222.6421.218-14.443-5.58917.9825.055-16.557-9.01318.0175.443-11.475-7.51120.7161.892-9.347-4.4110.732-3.231-10.217-8.57919.7712.24-12.704-6.25615.947-1.638
us-gaap:IncreaseDecreaseInInventories ▃▃▃▃▄▅▃▂▄▇▄▂▅▆▄▂▆▆▂▁▅▇▄▂▄▆▃▁▅▆▄▁▅▆▄▂▃█-3.793-1.854-3.268-1.6541.1961.459-1.64-6.480.4356.9641.246-5.5082.1216.761-0.948-5.3114.7324.812-4.721-8.6033.377.451-0.678-6.1710.8724.743-3.266-7.5422.525.579-1.133-8.2643.6665.897-0.059-5.12-1.80511.14
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▇▇▆▇▅█▆▇▆▆▇▆▇▆▇▆▆▅█▁▇▆▇▇▆▆▇▆▆▆▆▇▇▆▇▇▆▅0.3521.592-1.111.85-2.5642.266-0.9040.393-0.021-0.3420.199-0.7081.069-0.260.542-0.884-0.239-1.8172.809-9.8270.202-0.6181.6040.957-0.274-0.0380.884-1.009-1.193-0.901-1.5730.5730.449-0.5771.6730.833-1.55-2.284
us-gaap:NetCashProvidedByUsedInOperatingActivities █▃▂▁▁▁▃▆▅▃▃▆▅▃▂▅229.68518.393-13.08-39.323-27.559-40.76734.733146.297129.69837.68826.477140.644106.49720.3174.67899.476NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss █▄▄▃▂▄▄▇▆▄▅▇▆▄▅▆▁▄▅▇▅▃▅▇▅▄▄▇▆▄▅█▅▄▅▇▆▄127.762-44.884-45.536-79.237-131.029-56.519-24.18398.02852.651-37.02-11.05395.98822.697-62.844-20.44155.034-175.85-61.129-11.90565.65517.768-84.049-11.02897.955.809-43.598-25.44687.17637.336-49.431-13.507120.199-15.854-40.36-8.79992.25739.12-45.134
us-gaap:ProfitLoss █▃▃▂▁▃▄▇▆▄▄▇▅▃▄127.762-44.884-45.536-79.237-131.029-56.519-24.18398.02852.651-37.02-11.05395.98822.697-62.844-20.441NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ShareBasedCompensation ▃▃▃▂▂▁▂▂▃▂▃▃▃▃▃▂▄▃▂▂▂█▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂5.6344.4734.2643.4843.32-3.6012.6621.1624.0843.1983.5325.25.97.5453.9383.24511.9064.1142.9192.5452.46129.591.7271.5491.3981.8530.4440.570.5730.7621.3212.4821.9020.320.3040.3250.30.262
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▅▇▅▆█▃▄▄▁▃▄▃▂▃▅▄-29.683-15.298-33.46-22.016-4.45-49.249-42.337-40.066-64.903-47.887-38.802-43.378-52.027-45.822-32.75-34.948NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▄▂▄▃▁▆▅▅█▆▅▆▆▆▄▅▆▇▃▄▇▆▅▄▅▅▄▄▆▆▅▅▇▄▅▅▇▇29.68315.29833.4622.0164.4549.24942.33740.14264.80147.93738.89243.50651.5545.82232.87936.46346.32256.85325.02232.27255.37847.84640.17333.59542.86140.67331.83228.96247.0246.82740.40637.82755.70632.31936.76939.37358.5457.063
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃▃▃▇▇█▃▁▂▄▁▃▂▄▃▂-14.993-5.612-8.106174.037215.454242.819-4.061-98.46-72.7928.006-80.04-4.614-60.40132.1598.59-46.103NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RepaymentsOfLongTermDebt ▁▁▁▁▁▁▁▁▁▁▅▁▁▁▁▁▁█▁▁▁▁▁▁▃▁▁▁▁▁▁▁▂▁▁▁▁▁3.8763.8763.8763.8773.8763.8763.8773.8763.8763.877547.8125.9265.9275.9275.9265.9278.721006.3360.04.2124.2134.21234.2124.213264.2123.5133.51235.03.5133.5123.5133.513177.05.2295.22945.3335.3321.786
us-gaap:PaymentsForRepurchaseOfCommonStock NANA0.00.00.012.4060.00.0NANANANANANANANANANANANANANA30.015.0NANA9.350.002NANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType seas:SecondPrioritySeniorNotesNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:SubsequentEventType us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value953000.0948000.0946000.0944000.0944000.0943000.0940000.0940000.0939000.0937000.0934000.0932000.0931000.0929000.0926000.0926000.0925000.0919000.0919000.0919000.0918000.0904000.0903000.0903000.0903000.0902000.0902000.0900000.0900000.0899000.0899000.0896000.0896000.06624000.06616000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.30.3

us-gaap:CommonStockValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Common
Period End2020-12-312019-12-312018-12-312017-12-31
Value946000.0940000.0934000.0926000.0
Percentage of CommonStockValue100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0
Percentage of Assets srt:ParentCompany207.90.40.40.3

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value80787878787882838786868685858585838686868787889088662666665659
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value78787878787881838686868685858585838686868686888988662659659659
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1.62-0.57-0.58-1.01-1.68-0.72-0.311.250.65-0.44-0.131.110.26-0.73-0.240.64-2.05-0.72-0.140.770.21-1.0-0.131.140.07-0.51-0.291.010.43-0.56-0.151.34-0.18-0.06125-0.013750.140.05875-0.06875
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1.59-0.57-0.58-1.01-1.68-0.72-0.311.240.64-0.44-0.131.10.26-0.73-0.240.64-2.05-0.72-0.140.770.21-1.0-0.131.140.07-0.51-0.291.00.43-0.56-0.151.33-0.18-0.06125-0.013750.138750.05875-0.06875
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value127-44.884-45.536-79.237-130.174-55.815-23.479849-39.084-13.7159725-55.353-15.52757-176.556-58.725-0.236713-93.299-8.322872.062-44.471
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.1-26.10.0-74.7-722.1-36.3-7.920.812.3-17.7-4.920.16.4-25.5-5.813.0-47.2-31.5-0.113.83.6-42.4-3.117.50.5-20.7

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value272190177165119211303320309251269331336283276328596263279332333339274326345264287333324271271332380274265338332260
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax61.9111.00.0156.1661.6137.5101.867.676.3114.296.168.685.9130.5104.175.1159.5141.2104.368.589.7154.3102.665.688.3123.4108.567.380.1128.099.861.892.5115.0100.764.878.1122.7

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value136-50.032-55.365-87.629-123.137-76.715-25.5613274-52.127-18.15413234-86.123-31.0188-242.222-102.93-29.9813723-134.006-21.7921559.461-70.638-42.83914059-79.471-20.433184-24.268-64.406-27.5915464-74.948
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.0-29.10.0-82.6-683.1-50.0-8.627.918.4-23.6-6.527.48.9-39.7-11.720.3-64.8-55.2-11.228.36.3-60.8-8.131.42.4-32.9-16.228.414.8-37.4-7.534.3-5.9-27.0-10.529.615.2-35.3

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value8.461-5.148-9.829-8.3927.892-20.196-1.3773421-15.107-7.1013611-23.279-10.56933-66.372-41.801-18.075715.585-49.957-10.764573.652-27.04-17.3935322-30.04-6.92664-8.414-24.046-18.7916225-29.814
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.9-3.00.0-7.943.8-13.2-0.57.25.4-6.8-2.57.53.1-10.7-4.07.7-17.8-22.4-6.814.81.5-22.7-4.011.60.9-12.6-6.610.85.6-14.2-2.512.0-2.0-10.1-7.111.96.1-14.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3130312821192021212020192019202019181815141414151520202020202021222825292827
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.118.00.026.5121.512.56.74.55.49.47.54.05.29.27.64.65.29.86.93.13.96.65.53.04.09.47.74.25.19.47.73.95.612.09.65.76.813.1

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value127-44.884-45.536-79.237-131.029-56.519-24.1839852-37.02-11.0539522-62.844-20.44155-175.85-61.129-11.9056517-84.049-11.028975.809-43.598-25.4468737-49.431-13.507120-15.854-40.36-8.7999239-45.134
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.1-26.10.0-74.7-726.9-36.8-8.120.713.0-16.8-3.919.95.8-28.9-7.712.6-47.1-32.8-4.413.54.8-38.2-4.119.71.5-20.3-9.617.69.2-23.3-5.022.3-3.9-16.9-3.317.79.2-21.2

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value127-44.884-79.237-131.029-56.5199852-37.02-11.0539522-62.844-20.44155-175.85-61.129-11.9056517-84.049-11.028975.809-43.598-25.4468737-49.431-13.507120-15.854-40.36
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.3100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.1-26.1-74.7-726.9-36.820.713.0-16.8-3.919.95.8-28.9-7.712.6-47.1-32.8-4.413.54.8-38.2-4.119.71.5-20.3-9.617.69.2-23.3-5.022.3-3.9-16.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value127-44.884-45.536-79.237-131.029-56.519-24.1839852-37.02-11.0539522-62.844-20.44155-175.85-61.129-11.9056517-84.049-11.028975.809-43.598-25.4468737-49.431-13.507120-15.854-40.36-8.7999239-45.134
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.1-26.10.0-74.7-726.9-36.8-8.120.713.0-16.8-3.919.95.8-28.9-7.712.6-47.1-32.8-4.413.54.8-38.2-4.119.71.5-20.3-9.617.69.2-23.3-5.022.3-3.9-16.9-3.317.79.2-21.2

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value127-44.884-45.536-79.237-131.029-56.519-24.1839852-37.02-11.0539522-62.844-20.44155-175.85-61.129-11.9056517-84.049-11.028975.809-43.598-25.4468737-49.431-13.507120-15.854-40.36-8.7999239-45.134
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.1-26.10.0-74.7-726.9-36.8-8.120.713.0-16.8-3.919.95.8-28.9-7.712.6-47.1-32.8-4.413.54.8-38.2-4.119.71.5-20.3-9.617.69.2-23.3-5.022.3-3.9-16.9-3.317.79.2-21.2

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value167-18.902-23.373-59.486-101.23-57.574-5.28915396-31.3031015155-66.147-10.886108-222.564-76.735-11.53915238-119.567-6.97517045-50.199-22.49716180-59.4080.50520530-35.873-1.8818393-48.279
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax38.1-11.00.0-56.1-561.6-37.5-1.832.423.7-14.23.931.414.1-30.5-4.124.9-59.5-41.2-4.331.510.3-54.3-2.634.411.7-23.4-8.532.719.9-28.00.238.27.5-15.0-0.735.221.9-22.7

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax

seas:AccumulatedGainLossNetCashFlowHedge


Other
Period End2020-12-31
Value0
Percentage of OtherComprehensiveIncomeLossNetOfTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax seas:AccumulatedGainLossNetCashFlowHedge0.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-21000.0-174000.0-291000.02000.01000.012000.0-156000.086000.079000.0-27000.062000.059000.042000.0-63000.04000.0108000.0-83000.086000.0-77000.0-72000.0-118000.0142000.0382000.0-41000.0-209000.0-261000.0114000.056000.045000.0-17000.048000.013000.0107000.073000.0-547000.0237000.0733000.01140000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.10.00.00.00.0-0.10.00.0-0.00.00.00.0-0.00.00.0-0.00.0-0.0-0.0-0.00.10.1-0.0-0.1-0.10.00.00.0-0.00.00.00.00.0-0.20.00.20.5

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value127-44.884-45.536-79.237-131.029-56.519-24.1839852-37.02-11.0539522-62.844-20.441
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.1-26.10.0-74.7-726.9-36.8-8.120.713.0-16.8-3.919.95.8-28.9-7.7

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value43917115410618153298473405220280483391217265437373186267485371220267496391214264495405212271538411238263522425212
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

seas:FoodMerchandiseAndOtherRevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1967662438.251631192051789111620316687105172148
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.744.340.340.545.841.140.343.443.941.641.842.142.440.139.739.539.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.744.340.340.545.841.140.343.443.941.641.842.142.440.139.739.539.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax seas:FoodMerchandiseAndOtherRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Admission


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2439592639.77590178268227128163279225130160264224
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax55.355.759.759.554.258.959.756.656.158.458.257.957.659.960.360.560.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax55.355.759.759.554.258.959.756.656.158.458.257.957.659.960.360.560.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Admission100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value43917115410618153298473405220280483391217265437373186267485371220267496391214264495405212271538411238263522425212
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value4331222421268764674243517163525469524257726741477351355058453747623934584942
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.818.314.622.9117.117.629.213.616.619.415.610.718.129.319.812.518.528.115.711.819.430.615.79.618.723.813.310.214.521.213.98.815.116.813.111.311.520.1

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value27862573256626502577243823002270229623062115221121632158208521222173237223782379241924162391247524352443244225312525254425822658263225712521
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

srt:ParentCompany


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.455211265287
Percentage of Assets0.09.212.513.8
Percentage of Assets0.09.212.513.8
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value28082719267227162568230220892039216420791850183818931920179818221934196719171921202120151887193419501943186219111970195719281928200721612071
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.8105.7104.1102.599.694.490.889.894.390.287.583.187.589.086.285.989.082.980.680.783.683.478.978.280.179.576.375.578.076.974.772.676.284.182.2

us-gaap:Liabilities us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilitiesus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value1060.1690.1360.47
Percentage of Liabilities4.00.00.00.0
Percentage of Assets4.10.00.00.0
Percentage of Assets srt:ParentCompany23353.40.10.10.2

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value27862573256626502577243823002270229623062115221121632158208521222173237223782379241924162391247524352443244225312525254425822658263225712521
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilities
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.455211265287
Percentage of LiabilitiesAndStockholdersEquity0.09.212.513.8
Percentage of Assets0.09.212.513.8
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value-21.314-145.792-105.803-66.5219.121136210231131226265373269238287299239405461458397401504540485500579620555587654729625410449872949
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.8-5.7-4.1-2.50.45.69.210.25.79.812.516.912.511.013.814.111.017.119.419.316.416.621.121.819.920.523.724.522.023.125.327.423.815.917.80.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value-105.803210265287
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets-4.19.212.513.8
Percentage of Assets srt:ParentCompany-23253.499.999.999.8

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value6816856806746706676736716696646636606536476416376346246216186166326246236216396556556546726896886864574569551052
Percentage of StockholdersEquity-3199.6-470.0-643.0-1013.47351.3490.3319.5289.7508.9293.3250.3176.8242.4271.9223.1213.0265.3153.9134.7134.9154.9157.8123.9115.2128.1127.7113.1105.6117.9114.5105.494.5109.7111.5101.6109.5110.8
Percentage of Assets24.526.626.525.426.027.429.329.629.228.831.429.830.230.030.730.129.226.326.126.025.526.226.125.225.526.226.825.925.926.426.725.926.117.818.10.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value0.9530.9480.9460.9440.9440.9430.940.940.9390.9370.9340.9320.9310.9290.9260.9260.9250.9190.9190.9190.9180.9040.9030.9030.9030.9020.9020.90.90.8990.8990.8960.8960.8280.8270.8240.808
Percentage of StockholdersEquity-4.5-0.7-0.9-1.410.30.70.40.40.70.40.40.20.30.40.30.30.40.20.20.20.20.20.20.20.20.20.20.10.20.20.10.10.10.20.20.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value-288.922-416.684-371.8-326.264-247.027-115.998-59.479-35.296-133.324-185.975-148.955-137.902-233.89-256.587-194.837-174.396-229.44-53.597.51819-37.61-55.3694657-22.367-28.1763358-4.104-41.447.99139-62.862-47.008-6.648-84.092-103.205
Percentage of StockholdersEquity1355.6285.8351.4490.5-2708.3-85.2-28.2-15.2-101.4-82.1-56.2-36.9-86.7-107.8-67.8-58.2-95.9-13.21.64.2-9.5-13.89.210.6-4.6-5.65.89.5-0.7-7.11.25.4-10.0-11.5-1.5-9.6-10.9
Percentage of Assets-10.4-16.2-14.5-12.3-9.6-4.8-2.6-1.6-5.8-8.1-7.0-6.2-10.8-11.9-9.3-8.2-10.6-2.30.30.8-1.6-2.31.92.3-0.9-1.21.42.3-0.2-1.60.31.5-2.4-1.8-0.30.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value-415.309-415.309-415.309-415.309-415.309-415.309-402.903-402.903-402.903-252.903-252.903-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-124.871-109.871-109.871-109.871-94.871-94.869-44.163-44.163
Percentage of StockholdersEquity1948.5284.9392.5624.3-4553.3-305.1-191.0-173.9-306.3-111.7-95.4-41.5-57.4-65.1-53.9-51.7-64.7-38.2-33.6-33.8-38.9-38.6-30.7-23.1-22.7-21.9-19.0-15.3-17.1-7.5-6.8
Percentage of Assets-14.9-16.1-16.2-15.7-16.1-17.0-17.5-17.7-17.5-11.0-12.0-7.0-7.2-7.2-7.4-7.3-7.1-6.5-6.5-6.5-6.4-6.4-6.5-5.0-4.5-4.5-4.5-3.7-3.8-1.7-1.7
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value751532507562459293169151168172146241163153118147143136153150145143109225175150142221185198243316222177158
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.020.719.821.217.812.07.46.77.37.56.910.97.57.15.77.06.65.76.56.36.05.94.69.17.26.25.88.87.47.89.411.98.56.96.3

us-gaap:AssetsCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Assets
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.4550.1690.1360.47
Percentage of AssetsCurrent0.10.10.10.4
Percentage of Assets0.00.00.00.0
Percentage of Assets srt:ParentCompany100.00.10.10.2

Cash

us-gaap:Cash us-gaap:ConsolidatedEntities

us-gaap:Cash

srt:ParentCompany


Cashus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value455000.0169000.0136000.0470000.0
Percentage of Cash100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0
Percentage of Assets srt:ParentCompany100.00.10.10.2

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value615430433488375192395043513412533393352333368552941181195243431156361116210935945142978366123
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets22.116.716.918.414.67.91.72.21.92.21.65.71.51.81.62.51.61.42.92.31.21.70.84.82.21.81.84.62.52.44.57.93.62.31.80.00.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:CashAndCashEquivalents

seas:AmountsDueFromThirdPartyCreditCardCompanies


Cash
Period End2020-12-312019-12-312018-12-312018-12-302017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value4.99.7171716129.5978.3819.77615
Percentage of CashAndCashEquivalentsAtCarryingValue1.124.351.10.050.617.850.619.18.433.0
Percentage of Assets0.20.40.80.00.80.50.40.30.40.6
Percentage of Assets seas:AmountsDueFromThirdPartyCreditCardCompanies0.00.00.00.00.00.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value61743243548937719340524452351273440335335346919
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets22.216.817.018.514.67.91.82.32.02.31.75.81.61.91.62.51.61.52.90.8

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents us-gaap:ConsolidatedEntities

srt:ParentCompany


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value0.4550.1690.1360.470.9080.43
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents0.10.40.41.41.32.2
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets srt:ParentCompany100.00.10.10.20.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value9052302528434950635857667256384954413649584439485638374346384152594241
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.22.11.21.01.11.82.22.22.82.52.73.03.42.61.82.32.51.71.52.12.41.81.72.02.31.61.51.71.91.51.62.02.31.71.6

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2528303435343334434235343937303238332833423831323837333644413637464236
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.91.11.21.31.41.41.41.51.91.91.71.61.81.71.51.51.81.41.21.41.71.61.31.31.61.51.41.51.81.61.41.41.81.71.5

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value8486000.08740000.09022000.06799000.07476000.06657000.05882000.04378000.03495000.0
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.40.40.30.30.30.20.20.1

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2019121419224614181918141719161317281911151816182023201822231914162617
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.80.50.60.70.92.00.60.80.80.90.60.80.90.80.60.81.20.80.50.70.80.70.70.81.00.90.70.90.90.80.50.61.00.7

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-31
Value3314328932723274326732583209317131483116305730693042300029522934292628652828280327882751274827062678264726122580256424852452242823802343
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets119.0127.8127.5123.6126.8133.6139.5139.7137.1135.1144.5138.8140.6139.0141.5138.3134.6120.8118.9117.8115.3113.9114.9109.3109.9108.3106.9101.9101.596.392.392.292.593.0

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

seas:Animals


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value142142142142158158158157161
Percentage of PropertyPlantAndEquipmentGross4.34.44.64.85.65.86.16.36.9
Percentage of Assets5.56.26.76.86.76.66.56.16.4
Percentage of Assets seas:Animals0.00.00.00.00.00.00.00.00.0

us-gaap:Building


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value737733690670645618566537468
Percentage of PropertyPlantAndEquipmentGross22.522.822.622.722.822.521.721.620.0
Percentage of Assets28.731.932.732.127.125.923.220.818.6
Percentage of Assets us-gaap:Building0.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value15311782655493437188
Percentage of PropertyPlantAndEquipmentGross4.73.62.72.21.93.41.72.93.8
Percentage of Assets6.05.13.93.22.33.91.82.83.5
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.0

us-gaap:Equipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value154715271476143313681310126711731100
Percentage of PropertyPlantAndEquipmentGross47.347.648.348.648.447.748.547.247.0
Percentage of Assets60.366.469.868.757.554.851.945.543.6
Percentage of Assets us-gaap:Equipment0.00.00.00.00.00.00.00.00.0

us-gaap:LandImprovements


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value405403378354316281289259238
Percentage of PropertyPlantAndEquipmentGross12.412.612.412.011.210.211.110.410.2
Percentage of Assets15.817.517.917.013.311.811.910.19.5
Percentage of Assets us-gaap:LandImprovements0.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302013-03-312012-12-31
Value16761646161115841546151114761453142613991365138013431308127612531219118711611126108810521029993953907867829789714680642606568
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets60.264.062.859.860.062.064.264.062.160.764.562.462.160.661.259.156.150.048.847.345.043.643.040.139.137.135.532.831.227.725.624.423.622.6

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value16381643166016901720174617331718172117171692168816991691167516811707167716661677170016991718171317251739174417511775178017711771178617731774
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets58.863.864.763.866.771.675.475.775.074.580.076.378.678.480.379.278.570.770.170.570.370.371.969.270.871.271.469.270.370.068.666.667.969.070.4

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value6666666666666666666666666666666666335335335335335335335335335335335335335335335335335335
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.42.62.62.52.62.72.92.92.92.93.13.03.13.13.23.13.014.114.114.113.913.914.013.613.813.713.713.313.313.213.012.612.713.113.3

Indefinite Lived Intangible Assets Excluding Goodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass, us-gaap:StatementBusinessSegments

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:TrademarksAndTradeNames, seas:SeaWorldOrlandoReportingUnit


Indefinite
Period End2020-12-01
Value111
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill100.0
Percentage of Assets0.0
Percentage of Assets us-gaap:TrademarksAndTradeNames seas:SeaWorldOrlandoReportingUnit0.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:TrademarksAndTradeNames


Intangible
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value157157158159161162164163
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.16.87.57.76.86.86.76.3
Percentage of Assets us-gaap:TrademarksAndTradeNames0.00.00.00.00.00.00.00.0

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:DeferredTaxAssetsLiabilitiesNet


Deferred
Period End2020-12-312018-12-312017-12-312014-12-312013-12-312012-12-31
Value7.0751232-24.492-0.88923
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.61.6-1.0-0.00.9

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value133134136137138140141142144145
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.85.25.35.25.45.76.16.36.36.3

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1515151415151313141514192019171919202120192019151330313239404042454750
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.60.60.60.60.60.60.60.60.70.70.90.90.90.90.90.90.90.90.90.80.80.80.60.51.21.31.31.61.61.61.61.71.92.0

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value5141504731208123202923343225192319122320171211201623203020251531233119
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.81.62.01.81.20.83.61.10.91.31.11.61.51.20.91.10.90.51.00.90.70.50.50.80.71.00.81.20.81.00.61.20.91.20.8

us-gaap:AccruedLiabilitiesCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Accrued
Period End2020-12-312019-12-312018-12-31
Value0.4550.1520.052
Percentage of AccruedLiabilitiesCurrent0.90.20.2
Percentage of Assets0.00.00.0
Percentage of Assets srt:ParentCompany100.00.10.0

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-30
Value2381931301291331201041141631511011081577993145
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.67.55.14.95.24.94.55.07.16.64.84.97.33.84.46.7

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value507371317351366326402343496424310298368388253257369367263234392393229248330328221248325312252271354340246
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets18.214.412.413.314.213.417.515.121.618.414.713.517.018.012.212.117.015.511.19.916.216.39.610.113.613.49.19.812.912.39.810.213.513.29.8

us-gaap:LiabilitiesCurrent us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilities
Period End2020-12-312019-12-312018-12-312017-12-31
Value1060.1690.1360.47
Percentage of LiabilitiesCurrent33.50.00.00.2
Percentage of Assets4.10.00.00.0
Percentage of Assets srt:ParentCompany23353.40.10.10.2

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value65151515151565651608045232378382363915116819131161644141414141414145121
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.40.60.60.60.60.62.82.97.03.52.21.11.13.61.91.12.93.92.20.73.43.81.30.70.71.80.60.60.60.60.50.50.52.00.8

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value3210000.03287000.03757000.03805000.03818000.03925000.03896000.03914000.04105000.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.20.20.20.2

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value10109.4712128.9547.5915.4665.07418151518145.174.5193.8181.8930.3951.4550.6261.6081.4792.0112.0022.0267.7062.1772.6495.8052.7152.3492.5522.9182.699
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.50.50.40.30.20.20.80.70.70.80.70.20.20.20.10.00.10.00.10.10.10.10.10.30.10.10.20.10.10.10.10.1

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value21222174217721792006179014821485148814911494148914941498150315081513151715311540154315461548158115841586158915921622162416271629163117981802
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets76.284.584.882.277.973.464.465.464.864.770.767.369.169.472.171.169.664.064.464.763.864.064.863.965.064.965.162.964.263.963.061.362.069.971.5

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value171115243142
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.50.60.91.21.9

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value4142414040393738383534313132414951495272635740473123202021181818202222
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.61.61.51.61.61.61.71.71.51.61.41.51.52.02.32.42.12.23.12.62.41.71.91.31.00.80.80.80.70.70.70.80.90.9

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value118119120121122123124125127
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.24.64.74.64.75.05.45.55.5

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value1213141414
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0100.0
Percentage of Assets0.50.60.60.60.6

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo us-gaap:LeaseContractualTerm

seas:LandLease


Lessee
Period End2020-12-31
Value10
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo83.1
Percentage of Assets0.4
Percentage of Assets seas:LandLease0.0

seas:OtherOperatingLeases


Lessee
Period End2020-12-31
Value2.117
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo16.9
Percentage of Assets0.1
Percentage of Assets seas:OtherOperatingLeases0.0

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value1212131313
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0100.0
Percentage of Assets0.50.60.60.60.6

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree us-gaap:LeaseContractualTerm

seas:LandLease


Lessee
Period End2020-12-31
Value10
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree85.9
Percentage of Assets0.4
Percentage of Assets seas:LandLease0.0

seas:OtherOperatingLeases


Lessee
Period End2020-12-31
Value1.704
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree14.1
Percentage of Assets0.1
Percentage of Assets seas:OtherOperatingLeases0.0

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value1112121212
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.60.60.6

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour us-gaap:LeaseContractualTerm

seas:LandLease


Lessee
Period End2020-12-31
Value10
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour87.0
Percentage of Assets0.4
Percentage of Assets seas:LandLease0.0

seas:OtherOperatingLeases


Lessee
Period End2020-12-31
Value1.559
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour13.0
Percentage of Assets0.1
Percentage of Assets seas:OtherOperatingLeases0.0

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value1111121212
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.50.50.5

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive us-gaap:LeaseContractualTerm

seas:LandLease


Lessee
Period End2020-12-31
Value10
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive88.8
Percentage of Assets0.4
Percentage of Assets seas:LandLease0.0

seas:OtherOperatingLeases


Lessee
Period End2020-12-31
Value1.311
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive11.2
Percentage of Assets0.1
Percentage of Assets seas:OtherOperatingLeases0.0

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-312019-12-31
Value235247
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0
Percentage of Assets9.210.8

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive us-gaap:LeaseContractualTerm

seas:LandLease


Lessee
Period End2020-12-31
Value234
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive99.3
Percentage of Assets9.1
Percentage of Assets seas:LandLease0.0

seas:OtherOperatingLeases


Lessee
Period End2020-12-31
Value1.617
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive0.7
Percentage of Assets0.1
Percentage of Assets seas:OtherOperatingLeases0.0

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value123128129131132
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0
Percentage of Assets4.85.65.75.75.7

us-gaap:OperatingLeaseLiability us-gaap:LeaseContractualTerm

seas:LandLease


Operating
Period End2020-12-31
Value114
Percentage of OperatingLeaseLiability92.1
Percentage of Assets4.4
Percentage of Assets seas:LandLease0.0

seas:OtherOperatingLeases


Operating
Period End2020-12-31
Value9.759
Percentage of OperatingLeaseLiability7.9
Percentage of Assets0.4
Percentage of Assets seas:OtherOperatingLeases0.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value297311315320323
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0
Percentage of Assets11.613.613.913.914.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue us-gaap:LeaseContractualTerm

seas:LandLease


Lessee
Period End2020-12-31
Value286
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue96.1
Percentage of Assets11.1
Percentage of Assets seas:LandLease0.0

seas:OtherOperatingLeases


Lessee
Period End2020-12-31
Value11
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue3.9
Percentage of Assets0.4
Percentage of Assets seas:OtherOperatingLeases0.0

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value173183186188191
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0100.0
Percentage of Assets6.88.08.28.28.3

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount us-gaap:LeaseContractualTerm

seas:LandLease


Lessee
Period End2020-12-31
Value171
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount99.0
Percentage of Assets6.7
Percentage of Assets seas:LandLease0.0

seas:OtherOperatingLeases


Lessee
Period End2020-12-31
Value1.703
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount1.0
Percentage of Assets0.1
Percentage of Assets seas:OtherOperatingLeases0.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value-21.314-145.792-105.803-66.5219.121136210231131226265373269238287299239405461458397401504540485500579620555587654729625410449872949
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.8-5.7-4.1-2.50.45.69.210.25.79.812.516.912.511.013.814.111.017.119.419.316.416.621.121.819.920.523.724.522.023.125.327.423.815.917.80.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value-105.803210265287
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets-4.19.212.513.8
Percentage of Assets srt:ParentCompany-23253.499.999.999.8

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value6816856806746706676736716696646636606536476416376346246216186166326246236216396556556546726896886864574569551052
Percentage of StockholdersEquity-3199.6-470.0-643.0-1013.47351.3490.3319.5289.7508.9293.3250.3176.8242.4271.9223.1213.0265.3153.9134.7134.9154.9157.8123.9115.2128.1127.7113.1105.6117.9114.5105.494.5109.7111.5101.6109.5110.8
Percentage of Assets24.526.626.525.426.027.429.329.629.228.831.429.830.230.030.730.129.226.326.126.025.526.226.125.225.526.226.825.925.926.426.725.926.117.818.10.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value0.9530.9480.9460.9440.9440.9430.940.940.9390.9370.9340.9320.9310.9290.9260.9260.9250.9190.9190.9190.9180.9040.9030.9030.9030.9020.9020.90.90.8990.8990.8960.8960.8280.8270.8240.808
Percentage of StockholdersEquity-4.5-0.7-0.9-1.410.30.70.40.40.70.40.40.20.30.40.30.30.40.20.20.20.20.20.20.20.20.20.20.10.20.20.10.10.10.20.20.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-312010-12-31
Value-288.922-416.684-371.8-326.264-247.027-115.998-59.479-35.296-133.324-185.975-148.955-137.902-233.89-256.587-194.837-174.396-229.44-53.597.51819-37.61-55.3694657-22.367-28.1763358-4.104-41.447.99139-62.862-47.008-6.648-84.092-103.205
Percentage of StockholdersEquity1355.6285.8351.4490.5-2708.3-85.2-28.2-15.2-101.4-82.1-56.2-36.9-86.7-107.8-67.8-58.2-95.9-13.21.64.2-9.5-13.89.210.6-4.6-5.65.89.5-0.7-7.11.25.4-10.0-11.5-1.5-9.6-10.9
Percentage of Assets-10.4-16.2-14.5-12.3-9.6-4.8-2.6-1.6-5.8-8.1-7.0-6.2-10.8-11.9-9.3-8.2-10.6-2.30.30.8-1.6-2.31.92.3-0.9-1.21.42.3-0.2-1.60.31.5-2.4-1.8-0.30.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value-415.309-415.309-415.309-415.309-415.309-415.309-402.903-402.903-402.903-252.903-252.903-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-154.871-124.871-109.871-109.871-109.871-94.871-94.869-44.163-44.163
Percentage of StockholdersEquity1948.5284.9392.5624.3-4553.3-305.1-191.0-173.9-306.3-111.7-95.4-41.5-57.4-65.1-53.9-51.7-64.7-38.2-33.6-33.8-38.9-38.6-30.7-23.1-22.7-21.9-19.0-15.3-17.1-7.5-6.8
Percentage of Assets-14.9-16.1-16.2-15.7-16.1-17.0-17.5-17.7-17.5-11.0-12.0-7.0-7.2-7.2-7.4-7.3-7.1-6.5-6.5-6.5-6.4-6.4-6.5-5.0-4.5-4.5-4.5-3.7-3.8-1.7-1.7
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value953000.0948000.0946000.0944000.0944000.0943000.0940000.0940000.0939000.0937000.0934000.0932000.0931000.0929000.0926000.0926000.0925000.0919000.0919000.0919000.0918000.0904000.0903000.0903000.0903000.0902000.0902000.0900000.0900000.0899000.0899000.0896000.0896000.06624000.06616000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.30.3

us-gaap:CommonStockValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Common
Period End2020-12-312019-12-312018-12-312017-12-31
Value946000.0940000.0934000.0926000.0
Percentage of CommonStockValue100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0
Percentage of Assets srt:ParentCompany207.90.40.40.3

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value681685680674670667673671669664663660653647641637634624621618616632624623621639655689
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.526.626.525.426.027.429.329.629.228.831.429.830.230.030.730.129.226.326.126.025.526.226.125.225.526.226.826.7

us-gaap:AdditionalPaidInCapitalCommonStock us-gaap:ConsolidatedEntities

srt:ParentCompany


Additional
Period End2020-12-312019-12-312018-12-312017-12-31
Value680673663641
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0
Percentage of Assets26.529.331.430.7
Percentage of Assets srt:ParentCompany149529.7319.3250.2222.7

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-288.922-416.684-371.8-326.264-247.027-115.998-59.479-35.296-133.324-185.975-148.955-137.902-233.89-256.587-194.837-174.396-229.44-53.597.51819-37.61-55.3694657-22.367-28.1763358-4.104-41.447.99139-62.862-47.008-6.648
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-10.4-16.2-14.5-12.3-9.6-4.8-2.6-1.6-5.8-8.1-7.0-6.2-10.8-11.9-9.3-8.2-10.6-2.30.30.8-1.6-2.31.92.3-0.9-1.21.42.3-0.2-1.60.31.5-2.4-1.8-0.3

us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ConsolidatedEntities

srt:ParentCompany


Retained
Period End2020-12-312019-12-312018-12-312017-12-31
Value-371.8-59.479-148.955-194.837
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0
Percentage of Assets-14.5-2.6-7.0-9.3
Percentage of Assets srt:ParentCompany-81714.3-28.2-56.1-67.7

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value41541541541541541540240240225225215415415415415415415415415415415415412410910910994944444
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets14.916.116.215.716.117.017.517.717.511.012.07.07.27.27.47.37.16.56.56.56.46.46.55.04.54.54.53.73.81.71.7

us-gaap:TreasuryStockValue us-gaap:ConsolidatedEntities

srt:ParentCompany


Treasury
Period End2020-12-312019-12-312018-12-312017-12-31
Value415402252154
Percentage of TreasuryStockValue100.0100.0100.0100.0
Percentage of Assets16.217.512.07.4
Percentage of Assets srt:ParentCompany91276.7190.995.353.8

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value5.6344.4733.4843.32-3.6011.1624.0843.1983.5325.1835.8927.5453.9383.245114.1142.9192.5452.461291.7271.5491.3981.8530.4440.570.5730.7621.3222.4821.9020.32
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value5.6344.4733.4843.32-3.6011.1624.0843.1983.5325.1835.8927.5453.9383.245114.1142.9192.5452.461291.7271.5491.3981.8530.4440.570.5730.7621.3222.4821.9020.319
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.7
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value22918-13.08-39.323-27.559-40.767341461293726140106204.67899
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax52.210.7-8.5-37.1-152.9-26.511.730.931.917.19.529.127.29.41.822.7

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-29.683-15.298-33.46-22.016-4.45-49.249-42.337-40.066-64.903-47.887-38.802-43.378-52.027-45.822-32.75-34.948
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6.7-8.9-21.7-20.7-24.7-32.1-14.2-8.5-16.0-21.7-13.9-9.0-13.3-21.1-12.3-8.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-14.993-5.612-8.106174215242-4.061-98.46-72.7928-80.04-4.614-60.401328.59-46.103
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.4-3.3-5.3164.01195.2158.1-1.4-20.8-17.912.7-28.6-1.0-15.414.83.2-10.5

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value185-2.517-54.646112183152-11.6657.771-7.99517-92.36592-5.9316.654-19.482180.467-34.791
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax42.1-1.5-35.5106.21017.799.5-3.91.6-2.08.1-33.019.2-1.53.1-7.34.20.1-18.7

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value6.455-5.773-10.109-8.3927.892-20.805-1.7073422-16.606-7.5843611-23.817-12.0433-66.372-41.801-18.468715.585-49.957-11.216582.772-27.04-17.3565324-32.772-7.91264-8.414-24.046-19.2946225-29.814
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value46285.63-4.042-19.344-7.005-5.048-12.854.7042.329-12.459-7.0522221-14.443-5.589175.055-16.557-9.013185.443-11.475-7.511201.892-9.347-4.4110-3.231-10.217-8.579192.24-12.704-6.25615-1.638
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-3.793-1.854-3.268-1.6541.1961.459-1.64-6.480.4356.9641.246-5.5082.1216.761-0.948-5.3114.7324.812-4.721-8.6033.377.451-0.678-6.1710.8724.743-3.266-7.5422.525.579-1.133-8.2643.6665.897-0.059-5.12-1.80511
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value352000.01592000.0-1110000.01850000.0-2564000.02266000.0-904000.0393000.0-21000.0-342000.0199000.0-708000.01069000.0-260000.0542000.0-884000.0-239000.0-1817000.02809000.0-9827000.0202000.0-618000.01604000.0957000.0-274000.0-38000.0884000.0-1009000.0-1193000.0-901000.0-1573000.0573000.0449000.0-577000.01673000.0833000.0-1550000.0-2284000.0
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value22918-13.08-39.323-27.559-40.767341461293726140106204.67899
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax52.210.7-8.5-37.1-152.9-26.511.730.931.917.19.529.127.29.41.822.7

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value127-44.884-45.536-79.237-131.029-56.519-24.1839852-37.02-11.0539522-62.844-20.44155-175.85-61.129-11.9056517-84.049-11.028975.809-43.598-25.4468737-49.431-13.507120-15.854-40.36-8.7999239-45.134
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.1-26.1-29.6-74.7-726.9-36.8-8.120.713.0-16.8-3.919.95.8-28.9-7.712.6-47.1-32.8-4.413.54.8-38.2-4.119.71.5-20.3-9.617.69.2-23.3-5.022.3-3.9-16.9-3.317.79.2-21.2

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value127-44.884-79.237-131.029-56.5199852-37.02-11.0539522-62.844-20.44155-175.85-61.129-11.9056517-84.049-11.028975.809-43.598-25.4468737-49.431-13.507120-15.854-40.36
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.3100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.1-26.1-74.7-726.9-36.820.713.0-16.8-3.919.95.8-28.9-7.712.6-47.1-32.8-4.413.54.8-38.2-4.119.71.5-20.3-9.617.69.2-23.3-5.022.3-3.9-16.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value127-44.884-45.536-79.237-131.029-56.519-24.1839852-37.02-11.0539522-62.844-20.441
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax29.1-26.1-29.6-74.7-726.9-36.8-8.120.713.0-16.8-3.919.95.8-28.9-7.7

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value5.6344.4734.2643.4843.32-3.6012.6621.1624.0843.1983.5325.25.97.5453.9383.245114.1142.9192.5452.461291.7271.5491.3981.8530.4440.570.5730.7621.3212.4821.9020.320.3040.3250.30.262
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensation us-gaap:IncomeStatementLocation

us-gaap:OperatingExpense


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1.5640.9380.8880.7110.674-1.7511.3890.6540.6761.3571.0372.1192.6671.5631.2190.9763.9180.9360.6620.5050.5269.340.2680.2670.2590.069
Percentage of ShareBasedCompensation27.821.020.820.420.348.652.256.316.642.429.440.845.220.731.030.132.922.822.719.821.431.615.517.218.53.7

us-gaap:SellingGeneralAndAdministrativeExpenses


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value4.073.5353.3762.7732.646-1.851.2730.5083.4081.8412.4953.0643.2255.9822.7192.2697.9883.1782.2572.041.935201.4591.2821.1391.784
Percentage of ShareBasedCompensation72.279.079.279.679.751.447.843.783.457.670.658.954.779.369.069.967.177.277.380.278.668.484.582.881.596.3

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-29.683-15.298-33.46-22.016-4.45-49.249-42.337-40.066-64.903-47.887-38.802-43.378-52.027-45.822-32.75-34.948
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6.7-8.9-21.7-20.7-24.7-32.1-14.2-8.5-16.0-21.7-13.9-9.0-13.3-21.1-12.3-8.0

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value291533224.45494240644738435145323646562532554740334240312847464037553236395857
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-14.993-5.612-8.106174215242-4.061-98.46-72.7928-80.04-4.614-60.401328.59-46.103
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.4-3.3-5.3164.01195.2158.1-1.4-20.8-17.912.7-28.6-1.0-15.414.83.2-10.5

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3.8763.8763.8763.8773.8763.8763.8773.8763.8763.8775475.9265.9275.9275.9265.9278.7210060.04.2124.2134.212344.2132643.5133.512353.5133.5123.5133.5131775.2295.229455.3321.786
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:LongtermDebtType

seas:SecondPrioritySeniorSecuredNotes


Repayments
Period End2021-07-14
Value50
Percentage of RepaymentsOfLongTermDebt0.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302015-12-312015-09-302015-01-312014-12-312014-09-30
Value0.00.00.0120.00.030155.659.350.002
Percentage of PaymentsForRepurchaseOfCommonStock0.00.00.0100.00.00.0100.0100.0100.0100.0100.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateStatedPercentage

seas:SecondPrioritySeniorNotes


Debt
Period End2020-08-05
Value9.5
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations seas:SecondPrioritySeniorNotes0.0

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Debt
Period End2020-08-05
Value0.095
Percentage of DebtInstrumentInterestRateStatedPercentage1.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations us-gaap:SubsequentEvent0.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value10.3-0.0640.2630.04140.2580.2940.29-0.02330.2740.3460.270.00580.380.2740.406-3.93770.5220.2390.373-0.03860.3710.3860.383-0.01360.380.3780.378-0.00170.3490.3470.373-0.06530.4030.3970.398
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value21.5122.4321.621.2221.018.0518.0818.0718.8618.7818.7518.6918.6918.6718.6718.818.8319.21
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value328306268289353332309293260
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value655.2162.7622.7620.5841.4661.507
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsValuationAllowance us-gaap:IncomeTaxAuthority

seas:CharitableContribution


Deferred
Period End2021-06-302020-12-31
Value4.64.0
Percentage of DeferredTaxAssetsValuationAllowance0.06.1

seas:CharitableInstitution


Deferred
Period End2021-03-312020-12-312020-09-302020-06-30
Value4.64.01.01.0
Percentage of DeferredTaxAssetsValuationAllowance0.06.10.00.0

seas:FederalTax


Deferred
Period End2021-03-312020-12-312020-09-302020-06-30
Value7.37.17.07.0
Percentage of DeferredTaxAssetsValuationAllowance0.010.80.00.0

seas:FederalTaxCreditCarryforwards


Deferred
Period End2021-06-302021-03-312020-12-31
Value1.22439
Percentage of DeferredTaxAssetsValuationAllowance0.00.060.2

seas:FederalTaxCredits


Deferred
Period End2021-06-302020-12-31
Value2.97.1
Percentage of DeferredTaxAssetsValuationAllowance0.010.8

seas:StateTaxCreditCarryForwards


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-31
Value1212157.87.86.70.00525.35.35.20.00282.80.60.6
Percentage of DeferredTaxAssetsValuationAllowance0.00.022.90.00.00.00.10.00.00.00.1101.4102.740.9

seas:AggregatePrincipalAmountPartiallyRedeemed us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

seas:AggregatePrincipalAmountPartiallyRedeemed

seas:SecondPrioritySeniorSecuredNotes, us-gaap:SubsequentEvent


Aggregate
Period End2021-07-26
Value50
Percentage of AggregatePrincipalAmountPartiallyRedeemed100.0

seas:AggregatePrincipalAmountRedeemed us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

seas:AggregatePrincipalAmountRedeemed

seas:SecondPrioritySeniorSecuredNotes, us-gaap:SubsequentEvent


Aggregate
Period End2021-07-262021-07-31
Value40050
Percentage of AggregatePrincipalAmountRedeemed100.0100.0

seas:CostOfFoodMerchandiseAndOtherRevenues

seas:CostOfFoodMerchandiseAndOtherRevenues


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3414139.2981.153132137321721363117203129141835281720363115203833162040321919433618
Percentage of CostOfFoodMerchandiseAndOtherRevenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

seas:DiscountInitiallyRecorded us-gaap:LongtermDebtType

seas:DiscountInitiallyRecorded

seas:SecondPrioritySeniorNotes


Discount
Period End2020-09-30
Value13
Percentage of DiscountInitiallyRecorded100.0

us-gaap:SeniorNotes


Discount
Period End2020-09-302020-06-30
Value137.5
Percentage of DiscountInitiallyRecorded100.00.0

seas:IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesExcludingOtherAccruedLiabilities

seas:IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesExcludingOtherAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value22-2.226-5.216-17.7681013-1.042-11.392131.7154.668
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesExcludingOtherAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

seas:IncreaseDecreaseRightOfUseAssetsAndOperatingLeaseObligations

seas:IncreaseDecreaseRightOfUseAssetsAndOperatingLeaseObligations


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value109000.0115000.0143000.0165000.0120000.0133000.0131000.0107000.0135000.0128000.0
Percentage of IncreaseDecreaseRightOfUseAssetsAndOperatingLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

seas:OtherFinancingArrangements

seas:OtherFinancingArrangements


Other
Period End2021-06-302021-03-312020-12-312020-09-30
Value04239000.01053000.00
Percentage of OtherFinancingArrangements0.0100.0100.00.0

seas:PaymentsForRestructuringChargesAndOtherSeparationCosts us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

seas:PaymentsForRestructuringChargesAndOtherSeparationCosts

us-gaap:EmployeeSeverance, seas:TwoThousandTwentyRestructuringPrograms


Payments
Period End2020-09-30
Value1115000.0
Percentage of PaymentsForRestructuringChargesAndOtherSeparationCosts100.0

seas:PercentageOfBonusInCash us-gaap:PlanName

seas:PercentageOfBonusInCash

seas:TwoThousandTwentyOneBonusPlan


Percentage
Period End2021-06-302021-03-31
Value050.0
Percentage of PercentageOfBonusInCash0.0100.0

seas:PercentageOfBonusInUnits us-gaap:AwardType, us-gaap:PlanName

seas:PercentageOfBonusInUnits

seas:BonusPerformanceRestrictedShares, seas:TwoThousandTwentyOneBonusPlan


Percentage
Period End2021-06-302021-03-31
Value050.0
Percentage of PercentageOfBonusInUnits0.0100.0

seas:PercentageOfUnitsEarned us-gaap:PlanName

seas:PercentageOfUnitsEarned

seas:TwoThousandTwentyOneLongTermIncentivePlanBelowThresholdPerformance


Percentage
Period End2021-06-302021-03-31
Value050.0
Percentage of PercentageOfUnitsEarned0.0100.0

seas:PerformanceForTestPeriod us-gaap:PlanName

seas:PerformanceForTestPeriod

seas:TwoThousandTwentyOneLongTermIncentivePlanBelowThresholdPerformance


Performance
Period End2021-06-302021-03-31
Value095.0
Percentage of PerformanceForTestPeriod0.0100.0

seas:RightOfUseAssetsObtainedInExchangeForFinancingLeaseObligations

seas:RightOfUseAssetsObtainedInExchangeForFinancingLeaseObligations


Right
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value00208000.0001230000.0
Percentage of RightOfUseAssetsObtainedInExchangeForFinancingLeaseObligations0.00.0100.00.00.0100.0

seas:SeveranceAndOtherSeparationCostsIncurred

seas:SeveranceAndOtherSeparationCostsIncurred


Severance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.4960.0860.1712.5810.0090.0650.3371.2070.0662.566
Percentage of SeveranceAndOtherSeparationCostsIncurred100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

seas:SeveranceChargesAndOtherSeparationCostsIncurred us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

seas:SeveranceChargesAndOtherSeparationCostsIncurred

us-gaap:EmployeeSeverance, seas:TwoThousandTwentyRestructuringPrograms


Severance
Period End2020-09-30
Value2468000.0
Percentage of SeveranceChargesAndOtherSeparationCostsIncurred100.0

seas:SeveranceChargesAndOtherSeparationCostsIncurred us-gaap:RestructuringPlan

seas:TwoThousandTwentyRestructuringPrograms


Severance
Period End2020-09-30
Value2500000.0
Percentage of SeveranceChargesAndOtherSeparationCostsIncurred101.3

seas:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsVestRangeOnAnnualEligibleAwardVestingRightsPercentage us-gaap:PlanName

seas:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsVestRangeOnAnnualEligibleAwardVestingRightsPercentage

seas:TwoThousandTwentyOneLongTermIncentivePlanAtOrAboveMaximumPerformance


Share
Period End2021-06-302021-03-31
Value0100.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsVestRangeOnAnnualEligibleAwardVestingRightsPercentage0.0100.0

seas:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsVestRangeOnAnnualEligibleAwardVestingRightsPercentage us-gaap:Range, us-gaap:AwardType, us-gaap:PlanName

srt:Maximum, seas:BelowThresholdPerformanceBonusRestrictedShares, seas:TwoThousandTwentyOneBonusPlan


Share
Period End2021-06-302021-03-31
Value0125.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsVestRangeOnAnnualEligibleAwardVestingRightsPercentage0.0125.0

seas:UnrealizedGainLossOnDerivativesRecognizedInAccumulatedOtherComprehensiveIncomeLoss

seas:UnrealizedGainLossOnDerivativesRecognizedInAccumulatedOtherComprehensiveIncomeLoss


Unrealized
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
Value0.00.0-0.026-0.3440.0910.187-3.572-1.953-3.5061.8753.77712
Percentage of UnrealizedGainLossOnDerivativesRecognizedInAccumulatedOtherComprehensiveIncomeLoss0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value101.9710.0360.1543.160.6530.3623.6061.0350.6730.6351.6340.4750.1430.7210.7490.0250.280.990.3340.0060.0020.8310.0050.0790.0040.0520.078
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value101.9710.0360.1543.1590.6520.3623.6051.0360.6720.6351.6330.4740.1430.7210.7480.0250.280.990.3340.0050.0020.8310.0050.0790.0040.0520.078
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.099.8100.0100.0100.199.9100.099.999.8100.0100.099.9100.0100.0100.0100.083.3100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStock


Adjustments
Period End2021-06-302020-03-312019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0030.0010.0010.001-0.0010.0010.00.0010.0010.00.00.001
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation0.00.00.20.0-0.10.10.00.10.20.00.00.1

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1.6061.7171.7461.4031.0540.8220.8240.8490.8740.8991.0011.1491.1541.1571.2011.1441.1431.3241.3261.3311.3331.3351.2391.1571.6852.3282.3311.92.4672.7013.1643.1783.2014.240.04.3494.3216.087
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2.97415-21.381-14.6257.3424113-2.293-21.067497.635-9.59-0.029324.791-13.29720128.208-15.503-15.1924110-0.58-5.4532412-8.599-9.291312.711-6.965-3.13434-5.8-6.289-3.88438
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentRedemptionPricePercentage us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentRedemptionPricePercentage

seas:DebtInstrumentRedemptionPriceOne, seas:SecondPrioritySeniorSecuredNotes


Debt
Period End2020-08-05
Value1.01
Percentage of DebtInstrumentRedemptionPricePercentage100.0

us-gaap:DebtInstrumentRedemptionPricePercentage us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentRedemptionPeriodOne, seas:SecondPrioritySeniorSecuredNotes


Debt
Period End2020-08-05
Value1.0475
Percentage of DebtInstrumentRedemptionPricePercentage103.7

us-gaap:DebtInstrumentRedemptionPeriodThree, seas:SecondPrioritySeniorSecuredNotes


Debt
Period End2020-08-05
Value1.0
Percentage of DebtInstrumentRedemptionPricePercentage99.0

us-gaap:DebtInstrumentRedemptionPeriodTwo, seas:SecondPrioritySeniorSecuredNotes


Debt
Period End2020-08-05
Value1.0237
Percentage of DebtInstrumentRedemptionPricePercentage101.4

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3636363837384040403941414038424239384240407544445043474443414142404144444135
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet

us-gaap:DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet


Derivative
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value0.00.01.1991.3020.8630.324-0.349-0.855-0.162-0.301-0.383-1.85122-2.957-3.305-3.6364.1230.880.8340.8340.8420.8430.7390.73-4.5050.7460.7380.3952.655-0.422-0.382-0.34
Percentage of DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInContractWithCustomerLiability


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value55660.092-11.2611025-14.818-48.5691251-10.975-51.1382562-17.499-52.411
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value4.2184.246-1.3434.554-4.773-3.156-0.9621.711-4.479-1.737-4.1742.4422.0545.729-7.8629.61-4.872-3.3324.0935.226-5.6635.024-3.27-8.0787.958-3.3486.667-6.6252.562-7.5322.696-3.297.519-16.0178.913-4.4413-17.142
Percentage of IncreaseDecreaseInEmployeeRelatedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value12-11.887-4.0812110-28.349573.098-8.4875.498-11.4851.8527.1715.879-3.2414.3497.287-12.0874.513.473.4350.866-8.8573.453-7.05610-14.9259.744-5.61610-15.99210-8.12712-20.921158.698-3.632
Percentage of IncreaseDecreaseInOtherAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1.3632.533-5.952-4.552-4.2929.58632-4.082-1.6040.6285.141-3.424-2.5833.1413.116-3.778-6.724.0468.282-4.858-3.1122.8842.36-2.684-2.7242.2133.166-4.244-1.0633.4175.276-1.847-4.2116.1254.818-5.464-3.5385.511
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPaid us-gaap:LongtermDebtType

us-gaap:InterestPaid

seas:SeniorSecuredCreditFacilities


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-01-052018-03-312017-12-312017-09-302017-06-302017-01-032017-03-312016-12-312016-09-302016-06-302016-03-31
Value223522141818192119202018195.0523111919123112141414
Percentage of InterestPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossContingencyDamagesSoughtValue

us-gaap:LossContingencyDamagesSoughtValue


Loss
Period End2021-03-31
Value30
Percentage of LossContingencyDamagesSoughtValue100.0

us-gaap:LossContingencyDamagesSoughtValue us-gaap:Range

srt:Maximum


Loss
Period End2021-06-302021-03-31
Value0.035
Percentage of LossContingencyDamagesSoughtValue0.0116.7

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

seas:AccumulatedGainLossNetCashFlowHedge


Other
Period End2020-12-31
Value0.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value0.00.00.8550.7040.7130.374-2.866-2.064-2.6621.1492.4767.4914.9142.006-0.7062.404111.489-4.471-9.252.706-10.74-3.747-0.873-0.5011.087-0.872-0.208-0.188-1.1272.2860.294-0.082-1.172
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherCostAndExpenseOperating


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1571071059159132153175170149161198190155160194189157166198191180166196191153169200189167169202194173166191205163
Percentage of OtherCostAndExpenseOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.6250.4875.720.0040.916-0.5940.8463.220.5050.045
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForLegalSettlements

us-gaap:PaymentsForLegalSettlements


Payments
Period End2020-12-312018-09-30
Value0.04.0
Percentage of PaymentsForLegalSettlements0.0100.0

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2020-12-312020-09-302020-06-302020-03-312015-12-312013-12-312013-09-302012-12-312012-09-30
Value5.0631.3780.8550.2340.00.00.0070.00.0
Percentage of PaymentsOfDebtIssuanceCosts100.0100.0100.0100.00.00.0100.00.00.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value101.9710.5650.0360.1543.160.220.6530.3623.6061.0350.6730.6351.6340.4750.1430.7210.7490.0250.280.990.3340.0050.0020.8310.0050.0790.0040.0520.078
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfSeniorLongTermDebt

us-gaap:ProceedsFromIssuanceOfSeniorLongTermDebt


Proceeds
Period End2020-09-30
Value491
Percentage of ProceedsFromIssuanceOfSeniorLongTermDebt100.0

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromLinesOfCredit


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-30
Value0.00.00.0272255016455400.010.045150.02060241510.060150.00.0450.00.00.00.0
Percentage of ProceedsFromLinesOfCredit0.00.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.00.00.00.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
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-2199000.0-2158000.0-1157000.0-1142000.0-511000.0-208000.0-181000.0-174000.0-172000.0-226000.0-101000.0-21000.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromRepaymentsOfLinesOfCredit us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:ProceedsFromRepaymentsOfLinesOfCredit

us-gaap:RevolvingCreditFacility, seas:SecondPrioritySeniorSecuredNotes


Proceeds
Period End2020-08-05
Value0.311
Percentage of ProceedsFromRepaymentsOfLinesOfCredit100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-30
Value1639000.02393000.02555000.0147000.015000.0203000.0217000.01243000.01620000.0715000.01091000.02006000.01178000.07000.00000
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

seas:AccumulatedGainLossNetCashFlowHedge


Reclassification
Period End2020-12-31
Value0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax0.0

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RepaymentsOfLinesOfCredit


Repayments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-302014-12-312014-09-302013-12-312013-09-302013-06-302013-03-31
Value0.03111.510.025145842010.00.0655.00.04045200.0800.00.00.00.00.00.0305.0
Percentage of RepaymentsOfLinesOfCredit0.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.00.0100.00.00.00.00.00.00.0100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage us-gaap:AwardType, us-gaap:Vesting

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage

seas:LongtermIncentiveOptions, us-gaap:ShareBasedCompensationAwardTrancheThree


Sharebased
Period End2021-06-302021-03-31
Value060.0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage0.0100.0

seas:LongtermIncentiveOptions, us-gaap:ShareBasedCompensationAwardTrancheTwo


Sharebased
Period End2021-06-302021-03-31
Value020.0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage0.033.3

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312014-09-30
Value-7000.0-1000.0-1000.0-4000.0-1000.0-1000.0-4000.0-1000.0-1000.0-1000.0-4000.0-1000.0-1000.0-6000.0-1000.00-1000.0-14000.0-1000.0-1000.00-2000.00
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.00.0

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312014-09-30
Value7000.01000.01000.04000.01000.01000.04000.01000.01000.01000.04000.01000.01000.06000.01000.001000.014000.01000.01000.002000.00
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.0-100.00.0-100.0-100.0-100.0-100.00.0-100.00.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-31
Value1639000.02393000.0147000.015000.0203000.01243000.01620000.0715000.01091000.02006000.01178000.07000.0000056000.026000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-31
Value1638000.02392000.0147000.015000.0203000.01242000.01619000.0715000.01091000.02005000.01177000.07000.0000056000.026000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised99.9100.0100.0100.0100.099.999.9100.0100.0100.099.9100.00.00.00.00.0100.0100.0

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value1000.01000.01000.01000.001000.01000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised0.10.00.10.10.00.00.1

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:ShareRepurchaseProgram

us-gaap:StockRepurchasedDuringPeriodValue

seas:ShareRepurchaseProgram


Stock
Period End2020-12-312020-09-302020-06-302020-03-312019-05-27
Value0.00.00.012150
Percentage of StockRepurchasedDuringPeriodValue0.00.00.0100.0100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment


Weighted
Period End2021-06-302019-09-302019-06-302018-09-302018-06-302017-09-302016-09-302016-06-302015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302012-09-30
Value1191000.0640000.0647000.0926000.0486000.0272000.0157000.0132000.094000.0105000.00309000.0312000.00596000.0913000.0
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0

seas:AdditionalCapitalPaymentsRequiredForProjectCompletion

seas:AdditionalCapitalPaymentsRequiredForProjectCompletion


Additional
Period End2020-12-31
Value72
Percentage of AdditionalCapitalPaymentsRequiredForProjectCompletion100.0

seas:AdditionalMinimumRentDeferred

seas:AdditionalMinimumRentDeferred


Additional
Period End2020-12-31
Value8300000.0
Percentage of AdditionalMinimumRentDeferred100.0

seas:AggregatePrincipalAmountOutstanding

seas:AggregatePrincipalAmountOutstanding


Aggregate
Period End2021-06-30
Value50
Percentage of AggregatePrincipalAmountOutstanding100.0

seas:AllowanceForDoubtfulAccountsReceivableOnInstallmentArrangements

seas:AllowanceForDoubtfulAccountsReceivableOnInstallmentArrangements


Allowance
Period End2020-12-312019-12-312018-12-312017-12-31
Value6.712149.5
Percentage of AllowanceForDoubtfulAccountsReceivableOnInstallmentArrangements100.0100.0100.0100.0

seas:DebtInstrumentPeriodicPaymentPercentageOfPrincipalAmount us-gaap:DebtInstrument

seas:DebtInstrumentPeriodicPaymentPercentageOfPrincipalAmount

seas:TermBFiveLoans


Debt
Period End2021-06-302021-03-312020-09-302018-10-312017-03-31
Value1.0151.0151.0151.0150.01
Percentage of DebtInstrumentPeriodicPaymentPercentageOfPrincipalAmount100.0100.0100.0100.0100.0

seas:DebtInstrumentRedeemableAccruedAndUnpaidInterestPricePercentage us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:LongtermDebtType

seas:DebtInstrumentRedeemableAccruedAndUnpaidInterestPricePercentage

us-gaap:DebtInstrumentRedemptionPeriodOne, seas:SecondPrioritySeniorSecuredNotes


Debt
Period End2020-08-05
Value103.0
Percentage of DebtInstrumentRedeemableAccruedAndUnpaidInterestPricePercentage100.0

seas:DeferredPercentageRent

seas:DeferredPercentageRent


Deferred
Period End2020-12-31
Value1600000.0
Percentage of DeferredPercentageRent100.0

seas:DeferredTaxAssetsAcquisitionAndDebtRelatedCosts

seas:DeferredTaxAssetsAcquisitionAndDebtRelatedCosts


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value4.1285.555.8145.557151820
Percentage of DeferredTaxAssetsAcquisitionAndDebtRelatedCosts100.0100.0100.0100.0100.0100.0100.0

seas:DeferredTaxAssetsInterestLimitation

seas:DeferredTaxAssetsInterestLimitation


Deferred
Period End2020-12-31
Value463000.0
Percentage of DeferredTaxAssetsInterestLimitation100.0

seas:DeferredTaxAssetsLeaseObligations

seas:DeferredTaxAssetsLeaseObligations


Deferred
Period End2020-12-312019-12-31
Value2932
Percentage of DeferredTaxAssetsLeaseObligations100.0100.0

seas:DeferredTaxLiabilitiesRightOfUseAssets

seas:DeferredTaxLiabilitiesRightOfUseAssets


Deferred
Period End2020-12-312019-12-31
Value2931
Percentage of DeferredTaxLiabilitiesRightOfUseAssets100.0100.0

seas:DefiniteAndIndefiniteLivedTradeNamesAndTrademarksNet

seas:DefiniteAndIndefiniteLivedTradeNamesAndTrademarksNet


Definite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value157157157157157157157157157157158158159159159160160160161161161162162163163164
Percentage of DefiniteAndIndefiniteLivedTradeNamesAndTrademarksNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

seas:InitialAggregatePrincipalAmountAllowableRedeemablePercentage us-gaap:DebtInstrumentRedemptionPeriod, us-gaap:LongtermDebtType

seas:InitialAggregatePrincipalAmountAllowableRedeemablePercentage

us-gaap:DebtInstrumentRedemptionPeriodOne, seas:SecondPrioritySeniorSecuredNotes


Initial
Period End2020-08-05
Value10.0
Percentage of InitialAggregatePrincipalAmountAllowableRedeemablePercentage100.0

seas:LeaseLiability

seas:LeaseLiability


Lease
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1271311321351362.965
Percentage of LeaseLiability100.0100.0100.0100.0100.0100.0

seas:LeaseRightOfUseAsset

seas:LeaseRightOfUseAsset


Lease
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value14014414614814916
Percentage of LeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0

seas:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFour

seas:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFour


Long
Period End2020-09-30
Value727
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFour100.0

seas:LossesInExcessOfInvestmentInSubsidiary us-gaap:ConsolidatedEntities

seas:LossesInExcessOfInvestmentInSubsidiary

srt:ParentCompany


Losses
Period End2020-12-31
Value105
Percentage of LossesInExcessOfInvestmentInSubsidiary100.0

seas:PercentageOfBeginningOfPeriodDeferredRevenueBalanceRemainingAtEndOfPeriod

seas:PercentageOfBeginningOfPeriodDeferredRevenueBalanceRemainingAtEndOfPeriod


Percentage
Period End2020-12-31
Value5.0
Percentage of PercentageOfBeginningOfPeriodDeferredRevenueBalanceRemainingAtEndOfPeriod100.0

seas:PercentageOfInterestInSubsidiary us-gaap:LongtermDebtType

seas:PercentageOfInterestInSubsidiary

seas:SecondPrioritySeniorSecuredNotes


Percentage
Period End2020-08-05
Value1.0
Percentage of PercentageOfInterestInSubsidiary100.0

seas:PrepaidMarketingAndAdvertisingCosts

seas:PrepaidMarketingAndAdvertisingCosts


Prepaid
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value1175000.02264000.03821000.02800000.03202000.01439000.06965000.06817000.02500000.0
Percentage of PrepaidMarketingAndAdvertisingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsPayableAndOtherAccruedLiabilitiesCurrent

us-gaap:AccountsPayableAndOtherAccruedLiabilitiesCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-31
Value12910210514317415313111912010087
Percentage of AccountsPayableAndOtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent

us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent


Accrual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value9.2726.63310107.1432.7961.189106.9482.8271.28117.7883.5282.193117.3963.2222.25117.3395.1032.039107.0052.3862.113117.0652.5761.974
Percentage of AccrualForTaxesOtherThanIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedComputerSoftwareAccumulatedAmortization

us-gaap:CapitalizedComputerSoftwareAccumulatedAmortization


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value119.59.916129.258.8416.199
Percentage of CapitalizedComputerSoftwareAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedComputerSoftwareNet

us-gaap:CapitalizedComputerSoftwareNet


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value2.44.26.19.1961112107.35
Percentage of CapitalizedComputerSoftwareNet100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-31
Value2522081441401481331141251731611111181689010415689
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-30
Value14141311141310.0101010.0101010101010
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent dei:LegalEntity

seas:MiddleEastProject


Contract
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value10.0101010.010.010.010.010.010.010.010.0
Percentage of ContractWithCustomerLiabilityNoncurrent74.590.771.073.8100.093.796.6100.099.394.095.5

us-gaap:ContractWithCustomerLiabilityNoncurrent dei:LegalEntity, us-gaap:BalanceSheetLocation

seas:MiddleEastProject, us-gaap:OtherLiabilities


Contract
Period End2021-06-30
Value10.0
Percentage of ContractWithCustomerLiabilityNoncurrent71.0

us-gaap:ContractWithCustomerLiabilityNoncurrent us-gaap:BalanceSheetLocation

us-gaap:OtherLiabilities


Contract
Period End2021-03-312020-12-312019-12-312019-09-302019-06-302018-12-31
Value10.01310.010.010.010.0
Percentage of ContractWithCustomerLiabilityNoncurrent67.699.8100.093.796.699.3

us-gaap:ContractWithCustomerLiabilityNoncurrent us-gaap:ProductOrService

seas:PassProductsAdmissionsOrInparkProductsOrServices


Contract
Period End2020-09-302020-06-302020-03-31
Value1.14.23.6
Percentage of ContractWithCustomerLiabilityNoncurrent9.529.026.6

us-gaap:ContractualObligation us-gaap:Range

us-gaap:ContractualObligation

srt:Maximum


Contractual
Period End2021-06-302021-03-312020-12-312020-09-30
Value35404545
Percentage of ContractualObligation100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentCarryingAmount


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value22122216221922232038181615571561166015841553152715331594156015501596163015981573164216571601162016241638161216151650165416571661166518701845
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:CreditFacility

us-gaap:RevolvingCreditFacility


Debt
Period End2021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-312017-12-312017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312015-03-312014-12-312013-12-31
Value312311312505014565305515406524657515300.00.0
Percentage of DebtInstrumentCarryingAmount14.115.317.23.23.28.74.11.93.51.02.54.01.54.04.50.91.80.00.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:DebtInstrument

seas:TermBFiveLoans


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value14841488149214961500150415071511151515191523983985988990993995998
Percentage of DebtInstrumentCarryingAmount67.167.267.267.373.682.896.896.891.395.998.164.464.362.063.564.062.461.2

us-gaap:DebtInstrumentCarryingAmount us-gaap:LongtermDebtType

us-gaap:SeniorNotes


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2272272272272270.0260260260260260260260260400400
Percentage of DebtInstrumentCarryingAmount10.310.310.210.211.20.015.916.116.115.715.715.715.615.621.421.7

us-gaap:DebtInstrumentFaceAmount us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFaceAmount

us-gaap:RevolvingCreditFacility, seas:FirstPrioritySeniorSecuredNotes


Debt
Period End2020-12-31
Value227
Percentage of DebtInstrumentFaceAmount100.0

us-gaap:RevolvingCreditFacility, seas:SecondPrioritySeniorSecuredNotes


Debt
Period End2020-12-31
Value500
Percentage of DebtInstrumentFaceAmount219.8

us-gaap:DebtInstrumentFaceAmount us-gaap:LongtermDebtType

seas:SecondPrioritySeniorNotes


Debt
Period End2020-08-05
Value500
Percentage of DebtInstrumentFaceAmount0.0

seas:SecondPrioritySeniorSecuredNotes


Debt
Period End2020-08-05
Value500
Percentage of DebtInstrumentFaceAmount0.0

us-gaap:DebtInstrumentFaceAmount us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Debt
Period End2020-08-05
Value500
Percentage of DebtInstrumentFaceAmount0.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:DebtInstrument

us-gaap:DebtInstrumentInterestRateEffectivePercentage

seas:TermBFiveLoans


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3.753.753.753.750.03750.03990.0480.05040.0540.0550.05520.05240.05090.0530.04690.04330.03190.0319
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2325272816109.759
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredCosts dei:LegalEntity

us-gaap:DeferredCosts

seas:MiddleEastProject


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value7300000.06600000.05900000.05700000.05500000.05300000.05000000.04600000.04400000.04100000.03800000.03100000.02800000.0
Percentage of DeferredCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxAssetsNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value242422212019
Percentage of DeferredIncomeTaxAssetsNet100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value321329255256401374333294236
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredRentCredit us-gaap:BalanceSheetLocation

us-gaap:DeferredRentCredit

us-gaap:AccountsPayableAndAccruedLiabilities


Deferred
Period End2020-12-31
Value9900000.0
Percentage of DeferredRentCredit100.0

us-gaap:DeferredRevenueCurrent

us-gaap:DeferredRevenueCurrent


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2381931301291331201041141631511011081571387993145133789815213479981461307992135124829915012682
Percentage of DeferredRevenueCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredRevenueNoncurrent dei:LegalEntity, us-gaap:BalanceSheetLocation

us-gaap:DeferredRevenueNoncurrent

seas:MiddleEastProject, us-gaap:OtherLiabilities


Deferred
Period End2021-06-302020-12-31
Value2.31.9
Percentage of DeferredRevenueNoncurrent100.0100.0

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsDeferredIncome


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value5707000.02546000.02718000.02627000.04696000.0942000.01021000.02134000.01077000.0
Percentage of DeferredTaxAssetsDeferredIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value53545354
Percentage of DeferredTaxAssetsGoodwillAndIntangibleAssets100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value394311271292353333310298
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value272180180201294283269270222
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value6.0615.27.7797.263129.652108.1565.736
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value10109.3177.9226.8824.5462.92
Percentage of DeferredTaxAssetsTaxCreditCarryforwards100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2826000.04411000.04472000.04097000.03374000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLegalSettlements

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLegalSettlements


Deferred
Period End2020-12-312019-12-31
Value645000.08590000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLegalSettlements100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value7.417.3086.8476.9929.766109.6668.6867.912
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value514641374942352821
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value262218152017151211
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value3023000.02558000.02992000.03466000.04527000.04961000.04209000.08593000.04146000.0
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value211225192201326309278245199
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value191510127.57121516141920242220142212172116111712152315191219162321241733
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2020-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value161825303429542727303222
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiability


Finance
Period End2020-12-31
Value3719000.0
Percentage of FinanceLeaseLiability100.0

us-gaap:FinanceLeaseLiabilityCurrent us-gaap:BalanceSheetLocation

us-gaap:FinanceLeaseLiabilityCurrent

seas:OtherAccruedLiabilities


Finance
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value820000.0707000.0710000.0700000.0693000.0143000.0
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityNoncurrent us-gaap:BalanceSheetLocation

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:OtherLiabilities


Finance
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2899000.02851000.02974000.03155000.03333000.02822000.0
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDue


Finance
Period End2020-12-31
Value4507000.0
Percentage of FinanceLeaseLiabilityPaymentsDue100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive


Finance
Period End2020-12-31
Value2392000.0
Percentage of FinanceLeaseLiabilityPaymentsDueAfterYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Finance
Period End2020-12-31
Value939000.0
Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive


Finance
Period End2020-12-31
Value201000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour


Finance
Period End2020-12-31
Value206000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree


Finance
Period End2020-12-31
Value226000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearThree100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo


Finance
Period End2020-12-31
Value543000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo100.0

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount


Finance
Period End2020-12-31
Value788000.0
Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount100.0

us-gaap:FinanceLeaseRightOfUseAsset us-gaap:BalanceSheetLocation

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:OtherNoncurrentAssets


Finance
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value3580000.03487000.03622000.03806000.03990000.0
Percentage of FinanceLeaseRightOfUseAsset100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent


Finance
Period End2020-12-312019-12-31
Value3.763.56
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:TrademarksAndTradeNames


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value121211108.6367.1745.7124.492
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:TrademarksAndTradeNames


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1212121212121211
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntangibleAssetsGrossExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:TrademarksAndTradeNames


Intangible
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value169169169169169169169168
Percentage of IntangibleAssetsGrossExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPayableCurrent

us-gaap:InterestPayableCurrent


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value231623164.0931.3870.5730.621.3971.0950.491.0450.5790.8396.0780.5580.3510.197130.4930.6480.550.4410.3620.4649.7762.6049.7562.6219.8042.6369.7912.894153.877
Percentage of InterestPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventorySuppliesNetOfReserves

us-gaap:InventorySuppliesNetOfReserves


Inventory
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value629000.0218000.0217000.0217000.0290000.0290000.0
Percentage of InventorySuppliesNetOfReserves100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-312019-12-31
Value1314
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths us-gaap:LeaseContractualTerm

seas:LandLease


Lessee
Period End2020-12-31
Value10
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths76.7

seas:OtherOperatingLeases


Lessee
Period End2020-12-31
Value3.154
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths23.3

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LettersOfCreditOutstandingAmount


Letters
Period End2021-06-302021-03-312020-12-312020-09-302016-12-312013-09-302012-12-31
Value2020212117180.0
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.00.0

us-gaap:LineOfCredit us-gaap:CreditFacility, us-gaap:SubsequentEventType

us-gaap:LineOfCredit

seas:FiveYearSecuredFirstLienRevolvingCreditFacility, us-gaap:SubsequentEvent


Line
Period End2021-08-05
Value385
Percentage of LineOfCredit100.0

seas:SevenYearSeniorSecuredFirstLienTermLoanFacility, us-gaap:SubsequentEvent


Line
Period End2021-08-05
Value1100
Percentage of LineOfCredit285.7

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity

us-gaap:RevolvingCreditFacility


Line
Period End2021-06-302020-09-30
Value312311
Percentage of LineOfCreditFacilityCurrentBorrowingCapacity100.0100.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:RevolvingCreditFacility


Line
Period End2020-12-31
Value311
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:RevolvingCreditFacility, seas:SecondPrioritySeniorSecuredNotes


Line
Period End2020-08-05
Value311
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity0.0

us-gaap:LongTermDebtFairValue us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:LongTermDebtFairValue

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value784786787758231
Percentage of LongTermDebtFairValue100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value1484148814921496181118161557156116601584155315601598
Percentage of LongTermDebtFairValue189.3189.3189.4197.2783.40.00.00.00.00.00.00.00.0

us-gaap:LongTermDebtFairValue us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value2268227422802255204218161557156116601584155315601598
Percentage of LongTermDebtFairValue289.3289.3289.4297.2883.40.00.00.00.00.00.00.00.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive


Long
Period End2020-12-31
Value727
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value67772714451445
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value144514451515
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear


Long
Period End2021-06-302021-03-312020-09-30
Value57113.876
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear100.0100.0100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2020-12-312019-12-31
Value8.148.12
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent

us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent


Operating
Period End2020-12-312019-12-312019-09-302019-06-302018-12-31
Value1010101016
Percentage of OperatingLeasesFutureMinimumPaymentsDueCurrent100.0100.0100.0100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

seas:FederalTaxCreditCarryforwards


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1000659615693709677650660
Percentage of OperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0

seas:StateTaxCreditCarryForwards


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1200849990107511051100970850
Percentage of OperatingLossCarryforwards120.0128.8161.0155.1155.9162.5149.2128.8

us-gaap:OtherInventoryNetOfReserves

us-gaap:OtherInventoryNetOfReserves


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value4027000.04430000.04365000.04084000.03956000.04740000.04778000.05623000.05152000.0
Percentage of OtherInventoryNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PrepaidInsurance

us-gaap:PrepaidInsurance


Prepaid
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value2757000.02397000.05857000.06711000.08646000.08264000.08047000.08418000.08157000.0
Percentage of PrepaidInsurance100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashAndCashEquivalents

us-gaap:RestrictedCashAndCashEquivalents


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value1926000.02141000.01316000.01455000.01490000.0968000.0979000.01673000.01218000.0954000.0934000.01703000.01268000.01308000.0819000.0420000.0652000.0
Percentage of RestrictedCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringReserve us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:RestructuringReserve

us-gaap:EmployeeSeverance, seas:TwoThousandTwentyRestructuringProgram


Restructuring
Period End2020-12-31
Value145000.0
Percentage of RestructuringReserve100.0

us-gaap:EmployeeSeverance, seas:TwoThousandTwentyRestructuringPrograms


Restructuring
Period End2020-09-30
Value1353000.0
Percentage of RestructuringReserve0.0

us-gaap:RetailRelatedInventoryMerchandise

us-gaap:RetailRelatedInventoryMerchandise


Retail
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value262831262426283031
Percentage of RetailRelatedInventoryMerchandise100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SelfInsuranceReserve

us-gaap:SelfInsuranceReserve


Self
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value313131302827272423
Percentage of SelfInsuranceReserve100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SelfInsuranceReserve us-gaap:BalanceSheetLocation

seas:AccruedSalariesWagesAndBenefits


Self
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value1.82.83.82.6032.6852.7692.9772.9053.09
Percentage of SelfInsuranceReserve5.88.812.28.59.510.011.011.813.1

seas:OtherAccruedLiabilities


Self
Period End2020-12-312019-12-312018-12-312017-12-31
Value7.57.56.97.1
Percentage of SelfInsuranceReserve24.123.722.123.2

us-gaap:SelfInsuranceReserveCurrent

us-gaap:SelfInsuranceReserveCurrent


Self
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value7458000.07540000.07540000.07673000.07673000.07488000.07488000.07203000.07203000.06895000.06895000.07123000.07123000.07084000.07084000.07184000.07184000.07161000.07191000.07280000.08981000.07368000.06973000.07207000.07078000.07022000.07800000.07800000.07800000.07800000.07800000.07800000.07800000.07800000.07800000.0
Percentage of SelfInsuranceReserveCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

seas:BonusPerformanceRestrictedAwards


Share
Period End2020-12-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-31
Value26.1626.125.8325.715.0614.8714.6618.09
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0

seas:LongTermIncentivePerformanceRestrictedAwards


Share
Period End2020-12-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-31
Value23.3822.3421.7621.3815.8215.7915.7818.5
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue89.485.684.283.2105.0106.2107.6102.3

seas:TimeVestingRestrictedAwards


Share
Period End2020-12-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-31
Value14.1821.0819.2818.5717.3416.8316.5617.09
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue54.280.874.672.3115.1113.2113.094.5

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice


Share
Period End2020-12-31
Value19.82
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


Share
Period End2020-12-31
Value6860000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1


Sharebased
Period End2020-12-31
Value4622000.0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.0

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 us-gaap:ConsolidatedEntities, us-gaap:ShareRepurchaseProgram

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

srt:ParentCompany, seas:ShareRepurchaseProgram


Stock
Period End2020-12-31
Value237
Percentage of StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1100.0

Line plots across dimensions of each concept


TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:ShareBasedCompensation
us-gaap:IncomeStatementLocation
(None,)
Share Based Compensationus-gaap: Income Statement Location