OII


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

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesAuthorized

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:CostOfGoodsAndServicesSold

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpense

us-gaap:OperatingIncomeLoss
us-gaap:StatementBusinessSegments

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:Revenues
us-gaap:StatementBusinessSegments
us-gaap:StatementGeographical
us-gaap:TimingOfTransferOfGoodOrService

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets
us-gaap:StatementBusinessSegments

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:Currency
us-gaap:StatementGeographical

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet
us-gaap:PublicUtility

us-gaap:OtherAssetsCurrent

us-gaap:NoncurrentAssets
us-gaap:StatementGeographical

us-gaap:AssetsNoncurrent

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementBusinessSegments

us-gaap:Goodwill
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:TaxesPayableCurrent

us-gaap:LongTermDebt

us-gaap:LongTermDebtNoncurrent

us-gaap:MinorityInterest

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue
us-gaap:StatementEquityComponents
us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:MinorityInterest

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit
us-gaap:StatementBusinessSegments
us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

oii:AccruedRevenueContractAssets

oii:Amortizationdeferredfinancecost

oii:BillingsContractAssets

oii:CustomerPaymentDeferrals

oii:EffectOfExchangeRateOnWorkingCapital

oii:EffectiveIncomeTaxRateReconciliationUncertainTaxPosition

oii:OtheradjustmentstoIncomefromcontinuingoperations
us-gaap:StatementBusinessSegments

oii:RevenueRecognitionforRemainingPerformanceObligationsinnext24months

oii:TotalAdjustmentsToIncomeFromContinuingOperations
us-gaap:StatementBusinessSegments

oii:UnrecognizedTaxBenefitsExpenseProbabilityThresholdofRealizingforTaxBenefitsExpenseRecognitionMinimumPercentage

oii:WriteoffEquipmentandIntangibles

us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities

us-gaap:AvailableForSaleDebtSecuritiesGrossUnrealizedGain

us-gaap:CapitalizedContractCostAmortization

us-gaap:ContractWithCustomerAssetReclassifiedToReceivable

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain

us-gaap:Depreciation

us-gaap:DepreciationAndAmortization
us-gaap:StatementBusinessSegments

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax
us-gaap:Currency
us-gaap:StatementGeographical

us-gaap:GainLossOnSaleOfOtherAssets
us-gaap:StatementBusinessSegments

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GoodwillImpairmentLoss
us-gaap:StatementBusinessSegments

us-gaap:GrossTransactionVolume

us-gaap:ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss
us-gaap:StatementBusinessSegments

us-gaap:ImpairmentOfIntangibleAssetsFinitelived

us-gaap:ImpairmentOfLongLivedAssetsHeldForUse
us-gaap:StatementBusinessSegments

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncreaseDecreaseInDeferredRevenue

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:InventoryWriteDown
us-gaap:StatementBusinessSegments

us-gaap:InvestmentIncomeInterest

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherNoncashIncomeExpense

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
us-gaap:InformationByCategoryOfDebtSecurity

us-gaap:ProceedsFromSaleOfProductiveAssets

us-gaap:RestrictedStockExpense
us-gaap:StatementEquityComponents
us-gaap:AwardType
us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
us-gaap:AwardType, us-gaap:StatementEquityComponents

us-gaap:TaxAdjustmentsSettlementsAndUnusualProvisions

dei:EntityCommonStockSharesOutstanding

oii:AccountsReceivableAndContractAssets

oii:AccountsReceivableAndContractAssetsContingency

oii:AccruedJobCostsCurrent

oii:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestThreholdForConsolidationPercentage
us-gaap:AwardType
oii:DeferredCompensationPlanCashAwardNumberOfUnits

oii:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsInterest

oii:DeferredTaxLiabilitiesInterest

oii:Deferredtaxassetreserveslongtermoperatingleaseliabilities
us-gaap:Range
oii:EquityMethodInvestmentOwnershipInterestThresholdForConsolidationPercentage

oii:ForeignDeferredTaxAsset

oii:LineOfCreditFacilityAvailableAdditionalBorrowingCapacity
oii:AdvanceType, oii:BaseRateType, oii:InterestRateComponent, us-gaap:Range, us-gaap:DebtInstrument
oii:LineOfCreditFacilityBasisSpreadOnVariableRate
oii:AdvanceType, oii:InterestRateComponent, us-gaap:Range, us-gaap:DebtInstrument
us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType
oii:MajorCustomerAboveBenchmarkThresholdNumber

oii:NoncashIncomeTaxBenefit

oii:RevenueRecognitionforRemainingPerformanceObligations

oii:TotalOtherAssets

us-gaap:AccountsAndFinancingReceivableAllowanceForCreditLoss

us-gaap:AccountsPayableOtherCurrent
us-gaap:StatementEquityComponents
us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
us-gaap:MeasurementInputType
us-gaap:AlternativeInvestmentMeasurementInput

us-gaap:AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment

us-gaap:AvailableForSaleSecuritiesCurrent

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue

us-gaap:CapitalizedContractCostNet

us-gaap:ContractWithCustomerAssetGrossCurrent

us-gaap:ContractWithCustomerAssetNetCurrent

us-gaap:ContractWithCustomerLiability

us-gaap:DebtInstrumentRepurchasedFaceAmount

us-gaap:DebtSecuritiesCurrent
us-gaap:InformationByCategoryOfDebtSecurity
us-gaap:StatementGeographical

us-gaap:DeferredGainLossOnDiscontinuationOfFairValueHedge

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses

us-gaap:DeferredTaxLiabilitiesGrossNoncurrent

us-gaap:DeferredTaxLiabilitiesInvestments

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DueToEmployeesNoncurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
us-gaap:Range
us-gaap:EquityMethodInvestmentOwnershipPercentage

us-gaap:EquityMethodInvestments

us-gaap:FairValueConcentrationOfRiskCashSurrenderValue

us-gaap:FinancingReceivableAllowanceForCreditLosses
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:InterestReceivable

us-gaap:InventoryWorkInProcessAndRawMaterials

us-gaap:InvestmentsFairValueDisclosure

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent
us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:LoansPayableToBank

us-gaap:LossContingencyEstimateOfPossibleLoss

us-gaap:LossContingencyReceivableCurrent

us-gaap:NoncontrollingInterestInVariableInterestEntity

us-gaap:NotesPayableFairValueDisclosure

us-gaap:OperatingLossCarryforwards

us-gaap:OperatingLossCarryforwardsValuationAllowance

us-gaap:OtherAccruedLiabilitiesNoncurrent

us-gaap:OtherAssetsMiscellaneousNoncurrent
us-gaap:TitleOfIndividual
us-gaap:OtherDeferredCompensationArrangementsLiabilityClassifiedNoncurrent

us-gaap:OtherInventory

us-gaap:OtherInventoryNetOfReserves

us-gaap:OtherPostretirementBenefitsPayableCurrentAndNoncurrent

us-gaap:PrepaidExpenseCurrent

us-gaap:PrepaidExpenseCurrentAndNoncurrent

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:DebtInstrument
us-gaap:SeniorNotes

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:StatementEquityComponents
us-gaap:TreasuryStockCarryingBasis

us-gaap:TreasuryStockCommonShares

us-gaap:TreasuryStockCommonValue

us-gaap:TreasuryStockShares

us-gaap:UnamortizedDebtIssuanceExpense

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Other Nonoperating Income Expense
Balance Sheet
Intangible Assets Net Excluding Goodwill
Assets
Inventory Net
Current Assets
Available For Sale Securities Current
NonCurrent Assets
Intangible Assets Net Excluding Goodwill
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Minority Interest
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Gain Loss On Sale Of Property Plant Equipment
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Treasury Stock Shares
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄27.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.709NA13.854NANANA
us-gaap:CommonStockSharesIssued 110.834088NA110.834088NA110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088110.834088NA110.834088110.834088110.834088110.834088110.834088110.834088110.834088NA55.417044NANANA
us-gaap:CommonStockSharesAuthorized ██████████████████████████▁██▁▁▁▁360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0360.0180.0360.0360.0180.0180.0180.0180.0NA180.0180.0180.0180.0180.0180.0180.0NA180.0NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁100.84799.461NA99.29799.27399.055NA98.9398.92998.714NA98.53398.53198.383NA98.2798.75198.138NA98.06198.42498.286NA98.18598.89399.912NA107.407108.421108.724NA108.783108.713108.612NA108.5108.663108.761NA108.928109.147109.002NANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁99.76299.461NA99.29799.27399.055NA98.9398.92998.714NA98.53398.53198.383NA98.2798.26398.138NA98.06198.0697.952NA97.84598.52899.473NA106.923108.002108.17NA108.197108.197108.037NA107.905108.097108.155NA108.31108.533108.356NANANANA
us-gaap:EarningsPerShareBasic ▅▅▅▄▅▁▂▅▅▅▅▅▅▅▇▅▅▅▅▅▆▆▆▆▆▆▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆█▆▆▆0.06-0.09-0.25-0.8-0.25-3.71-2.65-0.26-0.36-0.25-0.6600000000000001-0.67-0.34-0.51.76-0.020.02-0.08-0.10999999999999999-0.120.230.260.290000000000000040.70.660.70.98999999999999981.161.020.840.86000000000000030.970.910.690.75000000000000020.780.670.480.54000000000000030.730.520.782.27000000000000050.540.490.71
us-gaap:EarningsPerShareDiluted ▅▅▅▄▅▁▂▅▅▅▅▅▅▅▇▅▅▅▅▅▆▆▆▆▆▆▇▇▇▆▆▆▆▆▆▆▆▆▆▆▆▆█▆▆▆0.06-0.09-0.25-0.8-0.25-3.71-2.65-0.26-0.36-0.25-0.6600000000000001-0.67-0.34-0.51.75-0.020.02-0.08-0.10999999999999999-0.120.230.260.27999999999999980.70.660.70.99000000000000021.161.020.840.85999999999999990.960.910.690.74000000000000020.780.670.470.53000000000000020.720.520.772.260.540.490.71
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 Operating Margin us-gaap:StatementBusinessSegments oii:AerospaceAndDefenseTechnologies█▁105.6888.327NANA79.603NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:StatementBusinessSegments oii:AerospaceAndDefenseTechnologiesMemberNA88.32787.52482.56579.60391.381NA77.221NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:StatementBusinessSegments oii:EnergyServicesAndProducts█▁392.519349.226NANA347.613NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:StatementBusinessSegments oii:EnergyServicesAndProductsMemberNA349.226336.738NANA445.287NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:StatementBusinessSegments oii:IntegrityManagementDigitalSolutions█▁64.0754.048NANA53.969NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:StatementBusinessSegments oii:IntegrityManagementsDigitalSolutionsMemberNA54.04854.30753.93353.96964.729NA65.332NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:StatementBusinessSegments oii:ManufacturedProducts▁█79.12786.825NANA100.57NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:StatementBusinessSegments oii:ManufacturedProductsMemberNA86.82599.899110.416100.57166.534NA114.487NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:StatementBusinessSegments oii:SubseaRobotics█▁141.371119.119NANA119.234NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:StatementBusinessSegments oii:SubseaRoboticsMemberNA119.119114.711119.617119.234139.77NA151.492NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 Operating Margin us-gaap:StatementBusinessSegments us-gaap:OilAndGasNANA336.738357.178333.836427.205448.242399.207395.533379.607378.37409.462374.588330.43NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 TTM Greenblatt ROC _ _▆▆▆▅▆▁▃▆▆▅▅▆▅▅▆▆▆▆▆▆▆▆▆▇▇▇███▇▇██▇▇▇▇▇▇▇▇▆▇22.81913.7830.48-60.62-5.182-380.757-254.17-5.194-9.635-21.714-97.144-1.552-19.637-27.149-9.11510.5319.39-0.15-3.859-11.85638.3848.09945.756113.464107.94106.65152.239181.918161.311132.862136.753153.736146.337108.29118.75123.813110.04775.98782.468109.62281.67461.06773.742NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▆▆▆▅▆▁▃▅▆▆▅▅▅▆█▆▆▆▆▆▆▇▆▆▇▆▆▇▇▇▇█▇▇▇█▇▇▇▇▇▇▇▇▇12.34-11.167-3.717-66.161-14.159-437.923-230.922-58.682-34.979-18.581-90.062-71.667-70.882-26.957163.82714.77912.915-14.595-44.5754.6132.50259.74510.43113.08682.9248.93115.29171.596105.668105.3183.697121.91359.11836.34998.666124.82347.31963.24652.98237.03564.00463.40650.54786.37338.464NA
us-gaap:CostOfGoodsAndServicesSold ▃▂▂▂▂▄▅▃▃▃▃▃▃▂▃▃▃▂▃▄▄▄▆▅▆▆███▇▇▇▆▅▆▅▄▃▃▃▂▂▂▂▁▁429.802380.896379.261410.092384.679489.916581.197448.586453.798466.299462.06471.665448.946397.585442.876421.235461.465401.321437.374513.832530.306510.864615.944575.3642.758623.323709.287731.234709.192650.71696.993647.805618.508558.177608.421563.348511.387471.59443.451449.112419.722371.619383.805390.655340.8335.465
us-gaap:GrossProfit ▃▃▃▂▃▃▁▃▃▂▂▃▂▂▃▃▃▃▃▂▄▄▄▆▆▆▇█▇▇▇▇▇▆▆▆▆▅▅▆▅▄▅▅▅▄68.39756.65745.00129.65142.53746.752-20.38749.06141.98327.58733.03547.63529.72818.82841.29954.88553.57144.85551.07135.44395.23397.48106.122168.313167.545163.449209.64241.855218.215189.491197.805205.492201.864160.375172.528170.869161.158123.303130.746153.096126.11698.801117.493125.619123.50399.705
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest █▁12.1962.976NA-72.161-19.268-397.873NA-17.593-17.979-27.979NA-4.844-29.782-43.245NA2.1673.384-8.617NA-17.17332.47336.54NA99.76595.296101.163NA180.988160.545132.788NA152.419NANANANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▆▇▇▆▆▅▆▇▇▆▅█▆▆▁▆▆▆▆▆▇▇▇▇▇▇███▇▇██▇▇▇▇▇▇▇▇▇▇▇▇▇5.95512.34115.4057.2045.52-30.275-4.3587.9317.203-3.152-43.82361.1353.2945.888-188.3463.9351.252-1.0832.534-5.37510.16411.43712.53231.22629.82831.66446.68556.6550.2541.56342.96648.01245.43934.41937.06538.81433.36423.66226.8829.9326.07119.34625.00729.30629.24721.131
us-gaap:InterestExpense ▆▇▇▆███▇▇▆▆▇▆▆▄▆▅▅▅▅▄▅▅▅▄▄▃▁▁▁▁▁▁▁▂▂▂▁▁▁▁▁▁▁▃▂9.72910.40710.5779.2511.61112.46211.70611.38210.1999.4249.6849.8858.8029.3715.38.657.5996.2686.3946.3256.2076.3926.3546.3966.2126.0883.2220.6770.3980.4110.0270.8510.5530.7631.1351.2821.2560.5450.350.3870.2120.1470.3740.1173.8781.641
us-gaap:OperatingIncomeLoss ▆▆▆▅▆▁▃▆▆▅▅▆▅▅▆▆▆▆▆▆▆▆▆▇▇▇███▇▇██▇▇▇▇▇▇▇▇▆▇▇▇▇22.81913.7830.48-60.62-5.182-380.757-254.17-5.194-9.635-21.714-97.144-1.552-19.637-27.149-9.11510.5319.39-0.15-3.859-11.85638.3848.09945.756113.464107.94106.65152.239181.918161.311132.862136.753153.736146.337108.29118.75123.813110.04775.98782.468109.62281.67461.06773.74288.05585.37462.329
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax NANA21.28313.20410.629-70.32531.99-33.1590.2036.246-25.708-5.688-37.80622.176-9.54616.54710.783-7.061-36.80516.411-19.80734.642-18.605-55.45317.456-62.402-85.382-52.742-4.62714.085-10.59517.506-39.693-38.517.80240.417-25.23511.791NANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▆▆▇▇▆▂█▄▆▆▄▅▄▇▅▇▆▅▄▇▅█▅▃▇▂▁▃▆▇▅▇▄▄▇█▄▆6.099-1.80221.28313.20410.629-70.32531.99-33.1590.2036.246-25.923-5.688-37.80622.176-9.74116.54710.783-7.061-33.54716.411-19.80734.642-17.074-55.45317.456-60.568-87.18-52.742-4.62714.085-9.73617.506-39.693-38.518.06440.417-25.23511.791NANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▁█-1.955-1.453NA-2.836-3.66-7.128-3.687-3.660.0070.719-2.395.632-3.556-8.474-2.154-1.287-0.058-2.5560.5790.57-1.405-5.988-0.453-9.099-6.4840.70.128-0.392-0.4170.294-0.433-0.639-1.5911.39-0.853-0.553-3.186-1.4731.792-1.973-0.217-0.141-1.171-0.281.507-0.982
us-gaap:ProfitLoss ▆▆▅▅▅▁▂▅▅▅▅▅▅▅█▆▆▆▆▆▆▆▆▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▇▇▆▆▆▇▆▆6.241-9.365-25.0-79.365-24.788-367.598-262.912-25.523-35.182-24.827-64.139-65.979-33.076-49.133173.568-1.7682.132-7.534-11.028-11.79822.30925.10327.50568.53965.46869.499102.471124.338110.29591.22593.433104.40798.81174.84980.60284.40672.55451.45558.31778.57856.69342.0747.79459.17754.31739.243
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▂▁▁▁▁▃▃▂▂▂▂▂▂▁▂▂▂▁▂▃▄▃▅▅▆▆▇█▇▆▇▆▆▅▆▅▄▃▃▃▃▂▂▂▂▁498.199437.553424.262439.743427.216536.668560.81497.647495.781493.886495.095519.3478.674416.413484.175476.12515.036446.176488.445549.275625.539608.344722.066743.613810.303786.772918.927973.089927.407840.201894.798853.297820.372718.552780.949734.217672.545594.893574.197602.208545.838470.42501.298516.274464.303435.17
us-gaap:Revenues ▂▁▁▁▁▃▃▂▂▂▂▂▂▁▂▂▂▁▂▃▄▃▅▅▆▆▇█▇▆▇▆▆▅▆▅▄▃▃▃▃▂▂▂▂▁498.199437.553424.262439.743427.216536.668560.81497.647495.781493.886495.095519.3478.674416.413484.175476.12515.036446.176488.445549.275625.539608.344722.066743.613810.303786.772918.927973.089927.407840.201894.798853.297820.372718.552780.949734.217672.545594.893574.197602.208545.838470.42501.298516.274464.303435.17
us-gaap:SellingGeneralAndAdministrativeExpense ▃▃▃▅▄▆█▆▅▅▆▄▅▄▅▃▃▃▆▄▇▅█▆█▇▇█▇▇█▅▆▅▆▄▅▄▄▃▃▁▃▁▁▁45.57842.87442.83949.39647.71955.74159.71754.25551.61849.30153.7349.18749.36545.97750.41444.35444.18145.00554.9347.29956.85349.38160.36654.84959.60556.79957.40159.93756.90456.62961.05251.75655.52752.08553.77847.05651.11147.31648.27843.47444.44237.73443.75137.56438.12937.376
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ▁▁▁▁▂▂▄▅▅▅▅▅▅▅▆▆▆▆▆▇▇▇███▇█▇▇▇▆▆▅▅▅▄▃▃▃▂▂▁▁2061.5492003.5242045.8422037.72128.7842165.0972740.6632885.6922938.6352971.5182824.9982923.6992902.7482928.6813023.953144.6833091.8013090.9963130.3153237.573319.2043364.1733429.5363420.633468.3343353.9433511.7013391.4553383.1843212.6133128.53028.5262862.842771.6212768.1182696.8522524.8642454.5122400.5442142.9622160.4612093.592030.506NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▁▁▁▁▂▂▄▅▅▅▅▅▅▅▆▆▆▆▆▇▇▇███▇█▇▇▇▆▆▅▅▅▄▃▃▃▂▂▁▁2061.5492003.5242045.8422037.72128.7842165.0972740.6632885.6922938.6352971.5182824.9982923.6992902.7482928.6813023.953144.6833091.8013090.9963130.3153237.573319.2043364.1733429.5363420.633468.3343353.9433511.7013391.4553383.1843212.6133128.53028.5262862.842771.6212768.1182696.8522524.8642454.5122400.5442142.9622160.4612093.592030.506NANANA
us-gaap:StockholdersEquity ▁▁▁▁▁▁▃▄▄▅▅▅▅▆▆▅▅▅▅▅▆▆▅▅▆▅▆▇██▇▇▇▇▆▆▆▆▅▅▅▅▅556.669542.282552.094553.356619.346630.5961069.3461297.0161352.971385.4371409.2351496.1191565.181632.8491659.1641494.6041491.1451489.1331516.6431571.781591.6371611.6481578.7341588.9161598.1641583.6721657.622018.8732172.632090.362043.441977.5571874.5371834.0741815.461734.2361624.6481611.9551557.9621516.6821506.3671455.7451390.215NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent ▄▃▃▃▃▃▄▃▃▃▄▃▂▂▃▄▄▄▄▅▅▅▆▆▆▇█▇▆▆▅▅▄▃▃▃▂▁▁▁▁▁▁1228.8761161.5171170.2631125.821131.9081151.9061244.4361167.1971195.1931220.3921244.8891189.8361114.2451105.7451187.4021232.7751261.7051246.731262.5951359.2681415.3561426.4951517.4931510.431520.01609.7111713.551558.3891530.7121456.2391433.2751391.4041291.741191.0251202.991176.8451040.234973.067984.122999.771994.871956.715983.502NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue NANA452.016NANANA373.655NANANA354.259367.15339.541334.91430.316472.381482.339462.516450.193441.625393.19370.853385.235271.155190.63304.512430.71474.592103.33106.33991.43102.349119.31127.99120.549103.63885.588127.492106.142166.108150.918186.861245.219148.25144.699220.039
 us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:Currency currency:AOA█▁▄6.63.34.7NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:StatementGeographical currency:AOANANA4.79.411.0NA6.28.47.17.79.30913.78612.09321.90426.92226.034.021.032.032.033.72222.0NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents █▇█▃▂▁▄▃▃▃▃456.087442.743452.016358.777333.509307.46373.655340.323355.838341.763354.259NA339.541334.91430.316NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▂▁▁▂▂▂▃▂▂▂▂▄▃▃▃▃▃▃▃▃▄▄▅▆▇▆▆█▇▆▆▆▅▅▅▅▄▄▄▃▃▃▃334.122284.48296.214331.617353.247372.966421.36376.027374.173381.455368.885579.205504.322471.345476.903464.547466.456429.752489.749510.424547.125577.213612.785702.793795.891774.905778.372922.382843.161785.089768.842747.667672.055618.738666.93669.843593.619519.099549.812508.287500.432455.963424.014NANANA
us-gaap:InventoryNet ▁▁▁▁▂▂▂▃▃▃▂▂▂▂▃▄▄▅▄▅▆▆▅▆▆▇▆█████▇▆▅▅▅▄▄▄▄▃▃129.133130.612141.241148.527160.447166.36174.744198.749206.671203.01194.507189.119185.926185.009215.282245.783266.636297.645280.13297.195343.023352.122328.453373.234376.95379.836375.588434.379441.497437.873441.789446.017394.874355.008331.28326.83290.141257.052255.095259.324264.488238.332236.517NANANA
us-gaap:OtherAssetsCurrent ▃▂▂▄▃▄▁▁▃▅▅▁█62.37258.33558.79566.13961.368.01353.38954.66761.5172.71371.03754.36284.456NA64.90150.06446.27456.81742.523110.024132.018126.307191.02163.248156.529150.458128.876127.036142.724126.938131.21495.371105.50189.28984.23176.53470.88669.42473.07366.05279.03375.55977.752NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NoncurrentAssets NANA732.313NANANA939.77NANANA964.67NANANA1064.204NANANA1814.301NANANA1861.938NANANA1744.498NANANA1642.363NANANA1522.287NANANA1378.104NANANA1010.666NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:BRNANA68.314NANANA86.254NANANA51.282NANANA50.842NANANA61.418NANANA57.896NANANA99.269NANANA112.84NANANA113.829NANANA99.709NANANA79.484NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:GBNANA68.874NANANA100.807NANANA106.33NANANA87.601NANANA102.14NANANA138.327NANANA113.191NANANA99.25NANANA85.434NANANA65.83NANANA70.73NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:NONANA85.844NANANA90.956NANANA58.042NANANA78.279NANANA277.949NANANA274.868NANANA332.503NANANA429.603NANANA474.408NANANA436.043NANANA165.942NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:USNANA385.659NANANA463.792NANANA560.928NANANA636.734NANANA1027.428NANANA1070.841NANANA838.273NANANA691.404NANANA607.572NANANA552.639NANANA483.078NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical oii:SegmentGeographicalGroupsOfCountriesForeignNANA346.654NANANA475.978NANANA403.742NANANA427.47NANANA786.873NANANA791.097NANANA906.225NANANA950.959NANANA914.715NANANA825.465NANANA527.588NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical oii:SegmentGeographicalGroupsOfCountriesGroupThreeNANA23.9NANANA18.646NANANA21.374NANANA25.346NANANA44.166NANANA43.128NANANA56.079NANANA38.516NANANA34.105NANANA30.633NANANA28.569NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical srt:AfricaNANA58.976NANANA124.4NANANA117.877NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical srt:AsiaPacificNANA40.746NANANA54.915NANANA48.837NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AssetsNoncurrent NA280.357284.472302.454349.012341.363719.695NANANA615.439NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentGross ▆▅▆▅▅▆▆█████▇██▇▇▇▇▇█▇▇▇▇▇▇▇▆▆▅▅▄▄▃▃▃▂▂▁▂▁▁2454.6782448.7262456.6022418.5232424.9212450.1162622.1852904.8792879.1972857.6882837.5872831.7282812.3742821.8262815.5792790.0562744.4412711.9982728.1252770.5692820.0642791.7112772.582748.7342758.1452653.252660.7882647.2512608.8852489.8052380.8882277.7722158.52136.0252069.1191973.9571916.311870.0381772.0171695.0481776.7551712.8051631.109NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ██▇▇▇▇▇███▇▇▇▇▇▆▆▆▆▆▆▅▅▅▅▄▄▄▄▄▃▃▃▂▂▂▂▁▁▁▁▁▁1916.7691887.0761865.4951809.0971777.0571778.2881845.6531958.4981931.411901.9491872.9171838.2141798.371767.5031751.3751706.7031644.2511588.5671574.8671603.5981610.0441553.5721505.8491476.11447.9341380.841354.9661332.4871296.31244.3071191.7891150.2781092.7581075.8351043.987984.601953.907921.416878.709853.948912.641876.966844.736NANANA
us-gaap:AmortizationOfIntangibleAssets ▁▂▁▇▁▅▆▆▃█0.81.31.03.50.82.63.03.21.83.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentNet ▁▁▁▂▂▂▃▅▅▅▅▅▅▆▆▆▆▆▇▇▇▇███████▇▇▆▆▆▅▅▅▅▄▄▄▄▃537.909561.65591.107609.426647.864671.828776.532946.381947.787955.739964.67993.5141014.0041054.3231064.2041083.3531100.191123.4311153.2581166.9711210.021238.1391266.7311272.6341310.2111272.411305.8221314.7641312.5851245.4981189.0991127.4941065.7421060.191025.132989.356962.403948.622893.308841.1864.114835.839786.373NANANA
us-gaap:Goodwill ▁▁▁▁▂▂▆▇▇▇▇███▇▇▇▇▇▇▇▇▇▇▇▅▅▆▆▆▆▆▅▆▆▆▅▅▅▃▃▃▃35.04235.06535.01634.55974.94673.987405.079410.449422.312421.572413.121500.164501.348512.164455.599464.772450.801445.512443.551448.289438.906443.121426.872421.603435.61314.799331.474360.212370.514347.909344.018347.127331.577343.483363.193356.728331.987339.876333.471157.239170.149178.679143.234NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill NANA14.317NANANA25.774NANANA79.995NANANA85.293NANANA87.801NANANA93.701NANANA60.895NANANA68.522NANANA78.252NANANA70.611NANANA22.208NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▄▁▂▂▃▁▆█152.008137.463141.206139.715144.933135.113163.238171.952NA182.311NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent 107.714NA108.25NA129.133132.263151.378189.713192.698191.504202.318240.185273.151NA316.745363.783279.105275.323270.911263.042254.922256.418218.44215.963170.349125.713128.231124.185134.235126.564124.646123.832134.28135.851134.184130.088145.319146.308140.03695.53980.5671.58765.577NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AccountsPayableCurrent ▃▂▂▂▂▄▆▃▃▃▃▃▂▁▂▂▁▂▁▂▃▁▄▂▅▄▄▆█▆▅▆▅▅▅▆▅▄▃▃▄▃▂106.77892.51594.20796.48189.411124.898145.933101.634105.171111.741102.636111.75691.1582.99585.53989.43881.67686.89577.59395.303100.00676.857118.27792.937135.779121.087123.688143.148176.209143.323129.632152.297140.378138.439130.489154.891136.841125.589111.381106.569116.409100.71385.572NANANA
us-gaap:AccruedIncomeTaxesCurrent NANA35.929NANANA36.996NANANA34.954NANANA30.589NANANA35.12623.4811.15710.8820.39548.59658.11949.62465.18971.77296.06682.26280.82879.29255.24785.34478.39362.45759.16346.7354.83349.65942.27234.4739.874NANANA
us-gaap:AccruedLiabilitiesCurrent ▂▁▂▂▂▂▃▂▂▂▅▄▃▂▃▄▅▄▆▄▅▆▇▇▇▆▇█▇▇█▇▅▄▅▅▄▃▃▁▁▂▂310.757276.322292.863289.128311.27298.906337.681313.819312.347309.902392.105364.558336.226289.527350.258372.018401.23390.633430.771382.289396.432435.475477.284482.294469.088431.131490.26510.622494.832469.856516.628471.666406.895374.456408.303398.005366.222353.675335.161265.333279.899294.518314.41NANANA
us-gaap:ContractWithCustomerLiabilityCurrent ▃▁▁▁▂▃█▆▄▄▅61.98847.90650.04645.56651.76361.929117.34294.96173.52678.66885.172NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent ▃▂▂▂▂▃▅▃▃▃▃▃▂▁▂▃▃▃▃▃▃▄▅▅▆▅▆▇█▇▇▇▅▅▅▅▄▄▃▂▂▂▂479.523416.743437.116431.175452.444485.733600.956510.414491.044500.311494.741476.314427.376372.522435.797461.456482.906477.528508.364501.073497.595523.212615.956623.827662.986601.842679.137725.542767.107695.441727.088703.255602.52598.239617.185615.353562.226525.994501.375421.561438.58429.701439.856NANANA
us-gaap:OperatingLeaseLiabilityCurrent █▇▇█▇▇████▁20.69518.97518.79820.48118.0118.79319.86319.62619.73320.0010.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent ▁▁▁▄▆▅▇▆▇██55.91757.02855.37373.88285.68581.15189.43485.64890.03597.54795.022NANANA95.817NANANA72.606NANANA79.157NANANA83.949NANANA75.499NANANA41.192NANANA40.303NANANA27.48NANANA
us-gaap:TaxesPayableCurrent ██▅▄▄▅▅▇▂▁▅42.98344.01535.92933.98632.96136.02436.99641.55528.02924.43534.954NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:LongTermDebt 773.423NA805.251NANANA796.516NANANA786.58NANANA792.312NANANANANANANANANANANANANANA90.00.0NA75.090.094.0120.0125.0100.0120.0NANANA0.0NANANA
us-gaap:LongTermDebtNoncurrent ███████████████████████████▃▂▂▁▁▂▂▂▂▂▂▂▁▁773.423804.888805.251805.631806.006806.396796.516799.855795.639790.969786.58782.19782.228785.068792.312795.805794.099793.908793.058802.256802.338800.56795.836797.495792.917750.0750.0250.080.090.00.040.075.090.094.0120.0125.0100.0120.00.00.0NA0.0NANANA
us-gaap:MinorityInterest ███████████▁▁▁▁▁6.0636.0636.0636.0636.0636.0636.0636.0636.0636.0636.0635.3545.3545.3545.3545.354NANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▁▁▁▁▁▁▁▂▂▂▂▃▂▂▂▇▆▆▆▆███▇███▇▇▆▆▅▅▄▄▄▄▄▄▃▄▃▃82.84483.31989.24487.1284.58485.47106.794109.463120.829122.285128.379163.722122.61132.888131.323387.464323.651330.427312.25362.461427.634428.753439.01410.392414.267418.429424.944397.04363.447336.812357.972307.714310.783249.308241.473227.263212.99216.563221.207204.719215.514208.144200.435NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▅▁▃▂▄▁▄▅█▆163.027150.229156.074154.355160.341150.839160.988162.881172.09166.453NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA26.74NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA22.342NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA19.424NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA19.11NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA122.593NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ▁▁▁▁▁▁▃▄▄▅▅▅▅▆▆▅▅▅▅▅▆▆▅▅▆▅▆▇██▇▇▇▇▆▆▆▆▅▅▅▅▅556.669542.282552.094553.356619.346630.5961069.3461297.0161352.971385.4371409.2351496.1191565.181632.8491659.1641494.6041491.1451489.1331516.6431571.781591.6371611.6481578.7341588.9161598.1641583.6721657.622018.8732172.632090.362043.441977.5571874.5371834.0741815.461734.2361624.6481611.9551557.9621516.6821506.3671455.7451390.215NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▁▁▁▁▁▂▄▆▆▆▆▇▇██▇562.732548.345558.157559.419625.409636.6591075.4091303.0791359.0331391.51415.2981501.4731570.5341638.2031664.5181499.958NANA1516.643NANANA1578.734NANANA1657.471NANANANANANANANANANANANANANANANANANANA
us-gaap:CommonStockValue ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄27.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.70927.709NA13.854NANANA
 us-gaap:AdditionalPaidInCapital us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapitalNANA192.492NANANA207.13NANANA220.421NANANA225.125NANANA227.566NANANA230.18NANANA229.64NANANA222.402NANANA212.94NANANA202.619NANANANANANANA
us-gaap:AdditionalPaidInCapitalCommonStock ▁▁▄▄▄▃▅▅▅▄▇▇▆▆▇▇▇▇█▇▇▇█▇▇▆█▇▇▆▇▆▆▅▆▆▅▅▅168.002168.411192.492190.25191.112189.322207.13203.955201.227198.784220.421217.613215.073211.988225.125224.542221.731218.307227.566223.665221.466217.859230.179224.621220.565216.258229.64224.625220.119214.376222.402216.413211.502206.411212.94210.959206.885202.744202.619NANANA207.132NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▁▁▁▁▂▂▄▆▆▆▇▇▇██▇▇▇▇▇████▇▇▇▆▆▅▅▄▄▃▃▃▂▂▂▁▁1348.0961341.8551351.221376.221455.5851480.3731850.2442113.1562138.6792173.8612204.5482268.6872334.6662367.7422417.4122243.8442260.3532272.9612295.2342320.9712359.2462363.4132364.7862363.6992321.5792282.7712240.2292165.7412070.161989.0261921.6421852.0121771.4091696.4011641.0271579.8481514.8661461.7351426.5251384.4131322.057NA1239.574NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▂▂▂▁▁▁▂▂▂▂▂▃▃▃▃▃▃▃▃▃▃▃▃▃▄▄▅▆▇▇▇▇▇▇██▇▇▇▇█-355.009-361.108-359.306-380.589-393.793-404.422-334.097-366.087-332.928-333.131-339.377-313.454-307.766-269.96-292.136-282.395-298.942-309.725-302.664-269.117-285.528-265.721-300.363-283.29-227.837-243.609-183.041-95.861-43.119-38.492-52.577-42.841-60.347-20.65417.846-0.218-40.635-15.4-27.191-21.85619.687NA-8.96NANANA
us-gaap:TreasuryStockValue 632.129NA660.021NA661.267662.386681.64681.717681.717681.786704.066704.436704.502704.63718.946719.096719.706720.119731.202731.448731.256731.612743.577743.823743.852699.457656.917303.341102.239102.25975.73675.73675.73675.79384.06284.06284.17764.83371.771.754.254NA61.385NANANA
us-gaap:MinorityInterest ███████████▁▁▁▁▁6.0636.0636.0636.0636.0636.0636.0636.0636.0636.0636.0635.3545.3545.3545.3545.354NANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▂▄▂▂▁▂▂▃▂▂▂▂▂▁▂▂▃▃▄▃▃▅▅▅▂█▄▅▃▅▄▄▄▄▄▂▄▄▃▂▃▄▄▄▃50.546-1.723104.28426.99537.518-32.1545.40239.45853.58519.1240.91119.97110.0675.618-7.53641.4143.59959.00577.772117.0992.03653.624187.348172.596192.378.094337.616109.665192.12782.354163.947134.487109.676120.761148.424104.06939.962146.439142.3860.70336.60448.885139.855106.819102.96392.213
us-gaap:NetCashProvidedByUsedInInvestingActivities ██▇██▇▇▇▇▇▇██▆▇▇█▇▇▇▇▇▇▆▂▇▆▆▄▆▅▆▆▆▆▆▆▆▁▇▆▅▇▆▇▇-7.15-5.007-13.876-3.397-8.611-26.706-14.741-51.927-38.205-29.914-16.39812.329-2.424-92.349-33.271-38.504-9.524-30.736-52.089-40.182-39.723-37.477-52.103-62.496-274.335-48.246-83.848-78.228-155.975-101.421-112.283-92.84-79.553-92.969-84.042-61.595-68.085-92.322-307.206-11.8-56.267-107.498-42.886-58.984-53.843-36.183
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄▄▂█▃▄▆▃▃▄▄▃▄▄▄█▄▄▅▅▃▁▅-30.478-1.8060.0260.222-0.279-1.6680.0210.362-0.344-2.3380.1210.029-0.022-5.7560.07-14.464-14.895-16.633-14.709-26.477-26.476-29.48-25.725-26.418-21.316-83.542110.72-60.175-39.16133.976-62.583-58.608-38.803-20.351-47.471-24.424-13.781-32.767104.86-33.713-16.280.2550.0-44.284-124.461.658
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect █▁13.344-9.273NA25.26826.049-66.195NA-15.51514.075-12.496NA27.6094.631-95.406NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▇▇▇▇▇▆▇▇▇▇▆█▆▇▁▇▇▆▇▆▇▇▇▇▆▇▇▇▇▇▇▇█▇▇▇▇▇▇▇▇▇▇▇▇▇-3.136-1.1364.0530.317-0.123-8.405-4.097-4.485-0.779-2.907-15.10950.055-25.8532.819-209.948-1.294-3.828-19.9436.802-7.4651.15-0.38913.3115.241-16.36516.90424.72528.28910.6017.10210.2761.55938.0541.91111.1814.7110.257-5.4947.219-3.541-0.4754.29925.7265.186-2.0682.34
 us-gaap:DepreciationDepletionAndAmortization us-gaap:StatementBusinessSegments oii:UnallocatedExpenses▁█0.1840.767NANA0.361NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncreaseDecreaseInAccountsReceivable NA11.616213.54-24.275-33.421-30.30369.192.284-31.732-22.1811.44673.11732.976-20.81512.357-2.20836.704-59.997-20.675-36.701-30.088-35.572-80.439-93.098-1.792-3.467-144.0179.2257.02516.24721.17686.99941.929-48.192-2.91354.56674.519-31.935-2.12437.19346.21518.253-34.24421.609-3.2643.795
us-gaap:IncreaseDecreaseInInventories ▅▄█▄▄▄▅▄▅▆▅▅▅▅▃▃▃▆▄▄▄▆▁▅▄▅▁▄▅▄▄█▇▆▅▇▇▅▄▄▆▅▄▅-1.479-10.62845.645-4.882-5.913-8.3841.012-7.9223.66115.0265.3913.1930.9162.985-30.502-21.506-31.00917.515-17.065-15.338-9.09923.669-54.047-3.716-5.6674.248-58.791-7.1183.498-3.916-4.22851.14339.86623.7274.45136.68933.091.956-6.494-5.23121.4021.815-5.978-0.312NANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▂▄▂▂▁▂▂▃▂▂▂▂▂▁▂▂▃▃▄▃▃▅▅▅▂█▄▅▃▅▄▄▄▄▄▂▄▄▃▂▃▄▄▄▃50.546-1.723104.28426.99537.518-32.1545.40239.45853.58519.1240.91119.97110.0675.618-7.53641.4143.59959.00577.772117.0992.03653.624187.348172.596192.378.094337.616109.665192.12782.354163.947134.487109.676120.761148.424104.06939.962146.439142.3860.70336.60448.885139.855106.819102.96392.213
us-gaap:ProfitLoss ▆▆▅▅▅▁▂▅▅▅▅▅▅▅█▆▆▆▆▆▆▆▆▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▇▇▆▆▆▇▆▆6.241-9.365-25.0-79.365-24.788-367.598-262.912-25.523-35.182-24.827-64.139-65.979-33.076-49.133173.568-1.7682.132-7.534-11.028-11.79822.30925.10327.50568.53965.46869.499102.471124.338110.29591.22593.433104.40798.81174.84980.60284.40672.55451.45558.31778.57856.69342.0747.79459.17754.31739.243
us-gaap:ShareBasedCompensation ▄▅▄▁▅▅▅▄▅▅▅▄▅▄▂▅▆▆▆▃▆▇▇▆▇▆▆▇█▇▇▇▇▇▆▆▆▆▅▅▅▄▄▄▄▄2.0263.1612.429-0.0513.1873.1163.232.3672.8552.983.0582.5773.1732.8120.6643.1443.9923.7184.1411.9883.8914.6674.6014.0624.5424.0844.1375.0775.7245.0964.8344.9115.1484.4874.0284.1894.1364.0893.4373.3852.8972.812.1332.1352.1482.074
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ██▇██▇▇▇▇▇▇██▆▇▇█▇▇▇▇▇▇▆▂▇▆▆▄▆▅▆▆▆▆▆▆▆▁▇▆▅▇▆▇▇-7.15-5.007-13.876-3.397-8.611-26.706-14.741-51.927-38.205-29.914-16.39812.329-2.424-92.349-33.271-38.504-9.524-30.736-52.089-40.182-39.723-37.477-52.103-62.496-274.335-48.246-83.848-78.228-155.975-101.421-112.283-92.84-79.553-92.969-84.042-61.595-68.085-92.322-307.206-11.8-56.267-107.498-42.886-58.984-53.843-36.183
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▁▁▁▁▁▂▂▄▃▂▂▂▂▂▃▂▂▂▂▂▃▂▄▃▃▄▆▆█▇█▆▆▇▆▅▅▆▅▄▄▄▂▅▄▃12.62910.69914.8477.9810.63127.22918.83757.98540.89829.96425.54830.38927.79825.73233.7818.623.49317.80729.00330.44531.73821.20660.76244.42845.36849.41285.39579.788117.662104.038113.95293.26481.13894.17784.0564.95768.17483.41771.60255.22254.34553.85921.01169.37758.67536.199
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▅▅▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄▄▂█▃▄▆▃▃▄▄▃▄▄▄█▄▄▅▅▃▁▅-30.478-1.8060.0260.222-0.279-1.6680.0210.362-0.344-2.3380.1210.029-0.022-5.7560.07-14.464-14.895-16.633-14.709-26.477-26.476-29.48-25.725-26.418-21.316-83.542110.72-60.175-39.16133.976-62.583-58.608-38.803-20.351-47.471-24.424-13.781-32.767104.86-33.713-16.280.2550.0-44.284-124.461.658
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value27272727272727272727272727272727272727272727272727272727272727272727272727272727271313
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.41.41.41.31.31.01.00.90.91.00.91.00.90.90.90.90.90.90.90.80.80.80.80.80.80.80.80.80.90.90.91.01.01.01.01.11.11.21.31.30.70.7

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2021-06-302020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value1101101101101101101101101101101101101101101101101101101101101101101101101101101101101101101101101101101101101101105555
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Authorized

us-gaap:CommonStockSharesAuthorized

us-gaap:CommonStockSharesAuthorized


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value360360360360360360360360360360360360360360360360360360360360360360360360360360180360360180180180180180180180180180180180180180
Percentage of CommonStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value10099999999989898989898989898989898989899107108108108108108108108108108109109
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value9999999999989898989898989898989897979899106108108108108108107108108108108108
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.06-0.09-0.25-0.8-0.25-3.71-2.65-0.26-0.36-0.25-0.66-0.67-0.34-0.51.76-0.020.02-0.08-0.11-0.120.230.260.290.70.660.70.991.161.020.840.860.970.910.690.750.780.670.480.540.730.520.782.270.540.490.71
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.06-0.09-0.25-0.8-0.25-3.71-2.65-0.26-0.36-0.25-0.66-0.67-0.34-0.51.75-0.020.02-0.08-0.11-0.120.230.260.280.70.660.70.991.161.020.840.860.960.910.690.740.780.670.470.530.720.520.772.260.540.490.71
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value12-11.167-3.717-66.161-14.159-437.923-230.922-58.682-34.979-18.581-90.062-71.667-70.882-26.9571631412-14.595-44.5754.6132.502591013828.931157110510583121593698124476352376463508638
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.5-2.6-0.9-15.0-3.3-81.6-41.2-11.8-7.1-3.8-18.2-13.8-14.8-6.533.83.12.5-3.3-9.10.80.49.81.41.810.21.11.77.411.412.59.414.37.25.10.017.07.010.60.06.111.713.50.016.78.3

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value429380379410384489581448453466462471448397442421461401437513530510615575642623709731709650696647618558608563511471443449419371383390340335
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax86.387.189.493.390.091.3103.690.191.594.493.390.893.895.591.588.589.689.989.593.584.884.085.377.479.379.277.275.176.577.477.975.975.477.70.076.776.079.30.074.676.979.00.075.773.477.1

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value685645294246-20.3874941273347291841545344513595971061681671632092412181891972052011601721701611231301531269811712512399
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.712.910.66.710.08.7-3.69.98.55.66.79.26.24.58.511.510.410.110.56.515.216.014.722.620.720.822.824.923.522.622.124.124.622.30.023.324.020.70.025.423.121.00.024.326.622.9

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-30
Value122.976-72.161-19.268-397.873-17.593-17.979-27.979-4.844-29.782-43.2452.1673.384-8.617-17.17332369995101180160132152
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.40.7-16.4-4.5-74.1-3.5-3.6-5.7-0.9-6.2-10.40.50.7-1.9-3.15.26.013.411.812.918.617.315.817.9

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5.95512157.2045.52-30.275-4.3587.9317-3.152-43.823613.2945.888-188.3463.9351.252-1.0832.534-5.3751011123129314656504142484534373833232629261925292921
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.22.83.61.61.3-5.6-0.81.63.5-0.6-8.911.80.71.4-38.90.80.2-0.20.5-1.01.61.91.74.23.74.05.15.85.44.94.85.65.54.80.05.35.04.00.05.04.84.10.05.76.34.9

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value9.72910109.2511121111109.4249.6849.8858.8029.3715.38.657.5996.2686.3946.3256.2076.3926.3546.3966.2126.0883.2220.6770.3980.4110.0270.8510.5530.7631.1351.2821.2560.5450.350.3870.2120.1470.3740.1173.8781.641
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.02.42.52.12.72.32.12.32.11.92.01.91.82.31.11.81.51.41.31.21.01.10.90.90.80.80.40.10.00.00.00.10.10.10.00.20.20.10.00.10.00.00.00.00.80.4

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value22130.48-60.62-5.182-380.757-254.17-5.194-9.635-21.714-97.144-1.552-19.637-27.149-9.115109.39-0.15-3.859-11.8563848451131071061521811611321361531461081181231107582109816173888562
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.63.20.1-13.8-1.2-70.9-45.3-1.0-1.9-4.4-19.6-0.3-4.1-6.5-1.92.21.8-0.0-0.8-2.26.17.96.315.313.313.616.618.717.415.815.318.017.815.10.016.916.412.80.018.215.013.00.017.118.414.3

us-gaap:OperatingIncomeLoss us-gaap:StatementBusinessSegments

oii:AerospaceAndDefenseTechnologies


Operating
Period End2021-06-302021-03-312020-06-30
Value191613
Percentage of OperatingIncomeLoss84.8122.2-259.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.93.83.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:AerospaceAndDefenseTechnologies0.00.00.0

oii:AerospaceAndDefenseTechnologiesMember


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-30
Value161613131211
Percentage of OperatingIncomeLoss122.23442.7-21.6-259.2-3.4-225.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.83.93.03.12.42.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:AerospaceAndDefenseTechnologiesMember0.00.00.00.00.00.0

oii:EnergyServicesAndProducts


Operating
Period End2021-06-302021-03-312020-06-30
Value35289.567
Percentage of OperatingIncomeLoss154.3207.9-184.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.16.52.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:EnergyServicesAndProducts0.00.00.0

oii:EnergyServicesAndProductsMember


Operating
Period End2021-03-312020-12-312020-03-31
Value2817-361.079
Percentage of OperatingIncomeLoss207.93676.594.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.54.2-67.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:EnergyServicesAndProductsMember0.00.00.0

oii:IntegrityManagementDigitalSolutions


Operating
Period End2021-06-302021-03-312020-06-30
Value4.7212.474-1.825
Percentage of OperatingIncomeLoss20.717.935.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.90.6-0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:IntegrityManagementDigitalSolutions0.00.00.0

oii:IntegrityManagementsDigitalSolutionsMember


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-30
Value2.4740.8920.793-1.825-121.535-1.721
Percentage of OperatingIncomeLoss17.9185.8-1.335.231.933.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.20.2-0.4-22.6-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:IntegrityManagementsDigitalSolutionsMember0.00.00.00.00.00.0

oii:ManufacturedProducts


Operating
Period End2021-06-302021-03-312020-06-30
Value0.792.7533.865
Percentage of OperatingIncomeLoss3.520.0-74.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.60.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:ManufacturedProducts0.00.00.0

oii:ManufacturedProductsMember


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-30
Value2.75312-38.1983.865-66.138-2.158
Percentage of OperatingIncomeLoss20.02545.463.0-74.617.441.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.62.9-8.70.9-12.3-0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:ManufacturedProductsMember0.00.00.00.00.00.0

oii:OffshoreProjectsGroup


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value7.9968.813-9.94-12.282-4.135-79.323-167.221-0.034
Percentage of OperatingIncomeLoss35.063.9-2070.820.379.820.865.80.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.62.0-2.3-2.8-1.0-14.8-29.8-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:OffshoreProjectsGroup0.00.00.00.00.00.00.00.0

oii:SubseaRobotics


Operating
Period End2021-06-302021-03-312020-06-30
Value211411
Percentage of OperatingIncomeLoss95.1106.1-225.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.43.32.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:SubseaRobotics0.00.00.0

oii:SubseaRoboticsMember


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-30
Value14142.12711-94.08315
Percentage of OperatingIncomeLoss106.13016.0-3.5-225.024.7-297.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.33.40.52.7-17.53.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:SubseaRoboticsMember0.00.00.00.00.00.0

oii:UnallocatedExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-31.738-31.715-33.692-26.157-28.179-32.649-33.461-28.447-31.762-34.434-29.442-25.014-27.359-27.494-26.81-23.025-25.925-25.038-18.907-18.231-19.721-27.344-15.233-24.057-37.09-37.867-38.405-39.647-35.987-35.971-37.09-36.184-35.736-32.959-31.716-31.466-29.921-28.07-31.832-27.531-27.123-25.455-27.687-26.169-23.524
Percentage of OperatingIncomeLoss-139.1-230.1-7019.243.1543.88.613.2547.7329.7158.630.31611.7139.3101.3294.1-218.6-276.116692.0489.9153.8-51.4-56.8-33.3-21.2-34.4-35.5-25.2-21.8-22.3-27.1-27.1-23.5-24.4-30.4-26.7-25.4-27.2-36.9-38.6-25.1-33.2-41.7-37.5-29.7-27.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6.4-7.2-7.9-5.9-6.6-6.1-6.0-5.7-6.4-7.0-5.9-4.8-5.7-6.6-5.5-4.8-5.0-5.6-3.9-3.3-3.2-4.5-2.1-3.2-4.6-4.8-4.2-4.1-3.9-4.3-4.1-4.2-4.4-4.60.0-4.3-4.4-4.70.0-4.6-5.0-5.40.0-5.1-5.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:UnallocatedExpenses0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OilAndGas


Operating
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
Value17-47.5613-337.523-225.97920143.121-83.10814-0.164-1.323
Percentage of OperatingIncomeLoss3676.578.5-256.588.688.9-390.7-154.5-14.485.6-934.40.84.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.2-10.83.1-62.9-40.34.13.00.6-16.82.8-0.0-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OilAndGas0.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value211310-70.32531-33.1590.2036.246-25.708-5.688-37.80622-9.5461610-7.061-36.80516-19.80734-18.605-55.45317-62.402-85.382-52.742-4.62714-10.59517-39.693-38.51740-25.23511
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.03.02.5-13.15.7-6.70.01.3-5.2-1.1-7.95.3-2.03.52.1-1.6-7.53.0-3.25.7-2.6-7.52.2-7.9-9.3-5.4-0.51.7-1.22.1-4.8-5.40.05.5-3.82.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value6.099-1.802211310-70.32531-33.1590.2036.246-25.923-5.688-37.80622-9.7411610-7.061-33.54716-19.80734-17.074-55.45317-60.568-87.18-52.742-4.62714-9.73617-39.693-38.51840-25.23511
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.2-0.45.03.02.5-13.15.7-6.70.01.3-5.2-1.1-7.95.3-2.03.52.1-1.6-6.93.0-3.25.7-2.4-7.52.2-7.7-9.5-5.4-0.51.7-1.12.1-4.8-5.40.05.5-3.82.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1310-70.325-33.1590.2036.246
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.02.5-13.1-6.70.01.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.0

us-gaap:Parent


Other
Period End2021-03-312020-03-312019-03-31
Value-1.802-70.3256.246
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.4-13.11.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1.955-1.453-2.836-3.66-7.128-3.687-3.660.0070.719-2.395.632-3.556-8.474-2.154-1.287-0.058-2.5560.5790.57-1.405-5.988-0.453-9.099-6.4840.70.128-0.392-0.4170.294-0.433-0.639-1.5911.39-0.853-0.553-3.186-1.4731.792-1.973-0.217-0.141-1.171-0.281.507-0.982
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.4-0.3-0.6-0.9-1.3-0.7-0.70.00.1-0.51.1-0.7-2.0-0.4-0.3-0.0-0.60.10.1-0.2-1.0-0.1-1.2-0.80.10.0-0.0-0.00.0-0.0-0.1-0.20.20.0-0.1-0.5-0.20.0-0.3-0.0-0.00.0-0.10.3-0.2

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.241-9.365-25.0-79.365-24.788-367.598-262.912-25.523-35.182-24.827-64.139-65.979-33.076-49.133173-1.7682.132-7.534-11.028-11.79822252768656910212411091931049874808472515878564247595439
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.3-2.1-5.9-18.0-5.8-68.5-46.9-5.1-7.1-5.0-13.0-12.7-6.9-11.835.8-0.40.4-1.7-2.3-2.13.64.13.89.28.18.811.212.811.910.910.412.212.010.40.011.510.88.60.013.010.48.90.011.511.79.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:Parent


Profit
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-03-31
Value6.241-9.365-24.788-367.598-24.827-49.133
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.3-2.1-5.8-68.5-5.0-11.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value6.241-9.365-79.365-24.788-367.598-25.523-35.182-24.827-65.979-33.076-49.133
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.3-2.1-18.0-5.8-68.5-5.1-7.1-5.0-12.7-6.9-11.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value498437424439427536560497495493495519478416484476515446488549625608722743810786918973927840894853820718780734672594574602545470501516464435
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value498437424439427536560497495493495519478416484476515446488549625608722743810786918973927840894853820718780734672594574602545470501516464435
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:StatementBusinessSegments

oii:AerospaceAndDefenseTechnologies


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-30
Value1058879
Percentage of Revenues21.220.218.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.220.218.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:AerospaceAndDefenseTechnologies0.00.00.0

oii:AerospaceAndDefenseTechnologiesMember


Revenuesus-gaap:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-30
Value888782799177
Percentage of Revenues20.220.618.818.617.015.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.220.618.818.617.015.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:AerospaceAndDefenseTechnologiesMember0.00.00.00.00.00.0

oii:EnergyServicesAndProducts


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-30
Value392349347
Percentage of Revenues78.879.881.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.879.881.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:EnergyServicesAndProducts0.00.00.0

oii:EnergyServicesAndProductsMember


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-03-31
Value392349336445
Percentage of Revenues78.879.879.483.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.879.879.483.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:EnergyServicesAndProductsMember0.00.00.00.0

oii:IntegrityManagementDigitalSolutions


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-30
Value645453
Percentage of Revenues12.912.412.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.912.412.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:IntegrityManagementDigitalSolutions0.00.00.0

oii:IntegrityManagementsDigitalSolutionsMember


Revenuesus-gaap:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-30
Value545453536465
Percentage of Revenues12.412.812.312.612.113.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.412.812.312.612.113.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:IntegrityManagementsDigitalSolutionsMember0.00.00.00.00.00.0

oii:ManufacturedProducts


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-30
Value7986100
Percentage of Revenues15.919.823.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.919.823.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:ManufacturedProducts0.00.00.0

oii:ManufacturedProductsMember


Revenuesus-gaap:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-30
Value8699110100166114
Percentage of Revenues19.823.525.123.531.023.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.823.525.123.531.023.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:ManufacturedProductsMember0.00.00.00.00.00.0

oii:OffshoreProjectsGroup


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value10789677373749189
Percentage of Revenues21.720.416.016.617.313.816.417.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.720.416.016.617.313.816.417.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:OffshoreProjectsGroup0.00.00.00.00.00.00.00.0

oii:SubseaRobotics


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-30
Value141119119
Percentage of Revenues28.427.227.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.427.227.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:SubseaRobotics0.00.00.0

oii:SubseaRoboticsMember


Revenuesus-gaap:
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-30
Value119114119119139151
Percentage of Revenues27.227.027.227.926.030.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.227.027.227.926.030.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:SubseaRoboticsMember0.00.00.00.00.00.0

us-gaap:OilAndGas


Revenuesus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value336357333427448399395379378409374330
Percentage of Revenues79.481.278.179.679.980.279.876.976.478.878.379.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax79.481.278.179.679.980.279.876.976.478.878.379.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OilAndGas0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:StatementGeographical

country:BR


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2720191919262625231717141318167.8627.253
Percentage of Revenues5.54.74.74.44.54.94.85.14.83.63.52.82.84.53.51.71.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.54.74.74.44.54.94.85.14.83.63.52.82.84.53.51.71.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:BR0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

country:GB


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value4543496862607661655350565045464874
Percentage of Revenues9.29.911.615.614.611.313.612.413.110.810.210.910.710.99.610.114.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.29.911.615.614.611.313.612.413.110.810.210.910.710.99.610.114.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:GB0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

country:NO


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value5752475745525559604242515139495444
Percentage of Revenues11.512.011.213.010.69.79.812.012.28.68.610.010.89.410.311.48.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.512.011.213.010.69.79.812.012.28.68.610.010.89.410.311.48.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:NO0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

country:US


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value227200209198188263257219213230248258242199254234245197
Percentage of Revenues45.845.949.445.244.249.145.844.243.246.750.249.850.647.952.649.247.744.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax45.845.949.445.244.249.145.844.243.246.750.249.850.647.952.649.247.744.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

oii:OtherGeographical


Revenuesus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value25202222242714282123451419
Percentage of Revenues5.24.75.05.34.65.02.85.74.34.78.83.14.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.24.75.05.34.65.02.85.74.34.78.83.14.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax oii:OtherGeographical0.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:Africa


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value7162404351637073618771516155
Percentage of Revenues14.314.49.59.812.111.812.614.912.417.614.49.912.913.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.314.49.59.812.111.812.614.912.417.614.49.912.913.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Africa0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:AsiaPacific


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4237363037454742434141394338
Percentage of Revenues8.58.68.67.08.78.58.58.68.78.48.47.79.19.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.58.68.67.08.78.58.58.68.78.48.47.79.19.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:AsiaPacific0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NonUs


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value270236-661.902240238273303277281263246260236216
Percentage of Revenues54.254.1-156.054.855.850.954.255.856.853.349.850.249.452.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax54.254.1-156.054.855.850.954.255.856.853.349.850.249.452.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NonUs0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:TimingOfTransferOfGoodOrService

us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value2629282730383737
Percentage of Revenues5.46.76.86.47.17.16.67.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.46.76.86.47.17.16.67.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TransferredAtPointInTime0.00.00.00.00.00.00.00.0

us-gaap:TransferredOverTime


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value471408395411396498523460
Percentage of Revenues94.693.393.293.692.992.993.492.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax94.693.393.293.692.992.993.492.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TransferredOverTime0.00.00.00.00.00.00.00.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value45424249475559545149534949455044444554475649605459565759565661515552534751474843443743373837
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.19.810.111.211.210.410.610.910.410.010.99.510.311.010.49.38.610.111.28.69.18.18.47.47.47.26.26.26.16.76.86.16.87.26.96.47.68.08.47.28.18.08.77.38.28.6

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value20612003204520372128216527402885293829712824292329022928302331443091309031303237331933643429342034683353351133913383321231283028286227712768269625242454240021422160209320301880
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:StatementBusinessSegments

oii:AerospaceAndDefenseTechnologies


Assetsus-gaap:
Period End2020-12-312019-12-31
Value112138
Percentage of Assets5.55.1
Percentage of Assets5.55.1
Percentage of Assets oii:AerospaceAndDefenseTechnologies100.0100.0

oii:AerospaceAndDefenseTechnologiesMember


Assetsus-gaap:
Period End2020-09-302019-12-31
Value119138
Percentage of Assets5.85.1
Percentage of Assets5.85.1
Percentage of Assets oii:AerospaceAndDefenseTechnologiesMember100.0100.0

oii:IntegrityManagementDigitalSolutions


Assetsus-gaap:
Period End2020-12-312019-12-31
Value80236
Percentage of Assets3.98.6
Percentage of Assets3.98.6
Percentage of Assets oii:IntegrityManagementDigitalSolutions100.0100.0

oii:IntegrityManagementsDigitalSolutionsMember


Assetsus-gaap:
Period End2020-09-302019-12-31
Value84236
Percentage of Assets4.28.6
Percentage of Assets4.28.6
Percentage of Assets oii:IntegrityManagementsDigitalSolutionsMember100.0100.0

oii:ManufacturedProducts


Assetsus-gaap:
Period End2020-12-312019-12-31
Value436607
Percentage of Assets21.422.2
Percentage of Assets21.422.2
Percentage of Assets oii:ManufacturedProducts100.0100.0

oii:ManufacturedProductsMember


Assetsus-gaap:
Period End2020-09-302019-12-31
Value450607
Percentage of Assets22.122.2
Percentage of Assets22.122.2
Percentage of Assets oii:ManufacturedProductsMember100.0100.0

oii:OffshoreProjectsGroup


Assetsus-gaap:
Period End2020-12-312020-09-302019-12-31
Value359363504
Percentage of Assets17.617.818.4
Percentage of Assets17.617.818.4
Percentage of Assets oii:OffshoreProjectsGroup100.0100.0100.0

oii:SubseaRobotics


Assetsus-gaap:
Period End2020-12-312019-12-31
Value487765
Percentage of Assets23.827.9
Percentage of Assets23.827.9
Percentage of Assets oii:SubseaRobotics100.0100.0

oii:SubseaRoboticsMember


Assetsus-gaap:
Period End2020-09-302019-12-31
Value513765
Percentage of Assets25.227.9
Percentage of Assets25.227.9
Percentage of Assets oii:SubseaRoboticsMember100.0100.0

us-gaap:AllOtherSegments


Assetsus-gaap:
Period End2020-12-312020-09-302019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value569507488466560568523576236228195351
Percentage of Assets27.824.917.816.518.518.215.316.47.68.28.117.3
Percentage of Assets27.824.917.816.518.518.215.316.47.68.28.117.3
Percentage of Assets us-gaap:AllOtherSegments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OilAndGas


Assetsus-gaap:
Period End2020-12-312020-09-302019-12-312018-12-31
Value1364141120212189
Percentage of Assets66.769.373.877.5
Percentage of Assets66.769.373.877.5
Percentage of Assets us-gaap:OilAndGas100.0100.0100.0100.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value20612003204520372128216527402885293829712824292329022928302331443091309031303237331933643429342034683353351133913383321231283028286227712768269625242454240021422160209320301880
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value55654255255361963010691297135213851409149615651632165914941491148915161571159116111578158815981583165720182172209020431977187418341815173416241611155715161506145513901224967915
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.027.127.027.229.129.139.044.946.046.649.951.253.955.854.947.548.248.248.548.548.047.946.046.546.147.247.259.564.265.165.365.365.566.265.664.364.365.764.970.869.769.568.565.10.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1228116111701125113111511244116711951220124411891114110511871232126112461262135914151426151715101520160917131558153014561433139112911191120211761040973984999994956983874
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets59.658.057.255.253.253.245.440.440.741.144.140.738.437.839.339.240.840.340.342.042.642.444.244.243.848.048.846.045.245.345.845.945.143.043.543.641.239.641.046.746.045.748.446.5

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value4523733543673393344304724824624504413933703852711903044307410310691102119127120103851271061661501862451481442201621127
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets22.113.612.512.611.711.414.215.015.615.014.413.611.811.011.27.95.59.112.32.23.13.32.93.44.24.64.43.83.45.24.47.87.08.912.10.00.00.08.60.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:Currency

currency:AOA


Cash
Period End2021-06-302021-03-312020-12-31
Value6.63.34.7
Percentage of CashAndCashEquivalentsAtCarryingValue0.00.01.0
Percentage of Assets0.30.20.2
Percentage of Assets currency:AOA0.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:StatementGeographical

currency:AOA


Cash
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value4.79.4116.28.47.17.79.3091312212626342132323322
Percentage of CashAndCashEquivalentsAtCarryingValue1.00.00.01.70.00.00.02.63.83.66.56.35.57.04.57.17.28.65.9
Percentage of Assets0.20.50.50.20.30.20.30.30.50.40.70.90.81.10.71.01.01.00.7
Percentage of Assets currency:AOA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-31
Value456442452358333307373340355341354339334430
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets22.122.122.117.615.714.213.611.812.111.512.511.711.414.2

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value334284296331353372421376374381368579504471476464466429489510547577612702795774778922843785768747672618666669593519549508500455424435
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.214.214.516.316.617.215.413.012.712.813.119.817.416.115.814.815.113.915.615.816.517.217.920.522.923.122.227.224.924.424.624.723.522.324.124.823.521.122.923.723.221.820.923.1

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value129130141148160166174198206203194189185185215245266297280297343352328373376379375434441437441446394355331326290257255259264238236232
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.36.56.97.37.57.76.46.97.06.86.96.56.46.37.17.88.69.68.99.210.310.59.610.910.911.310.712.813.013.614.114.713.812.812.012.111.510.510.612.112.211.411.612.4

us-gaap:InventoryNet us-gaap:PublicUtility

oii:Rovs


Inventory
Period End2020-12-312019-12-31
Value6276
Percentage of InventoryNet44.543.6
Percentage of Assets3.12.8
Percentage of Assets oii:Rovs0.00.0

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value625858666168535461727154846450465642110132126191163156150128127142126131951058984767069736679757744
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.02.92.93.22.93.11.91.92.12.42.51.92.92.11.61.51.81.43.44.03.85.64.84.54.53.73.74.24.04.23.13.73.23.02.82.82.83.03.13.73.63.82.4

Noncurrent Assets

us-gaap:NoncurrentAssets

us-gaap:NoncurrentAssets


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value73293996410641814186117441642152213781010977
Percentage of NoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets35.834.334.135.258.054.349.752.555.057.449.852.0

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

country:BR


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value68865150615799112113997963
Percentage of NoncurrentAssets9.39.25.34.83.43.15.76.97.57.27.96.5
Percentage of Assets3.33.11.81.72.01.72.83.64.14.23.93.4
Percentage of Assets country:BR0.00.00.00.00.00.00.00.00.00.00.00.0

country:GB


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value68100106871021381139985657063
Percentage of NoncurrentAssets9.410.711.08.25.67.46.56.05.64.87.06.5
Percentage of Assets3.43.73.82.93.34.03.23.23.12.73.53.4
Percentage of Assets country:GB0.00.00.00.00.00.00.00.00.00.00.00.0

country:NO


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value85905878277274332429474436165170
Percentage of NoncurrentAssets11.79.76.07.415.314.819.126.231.231.616.417.5
Percentage of Assets4.23.32.12.68.98.09.513.717.118.28.29.1
Percentage of Assets country:NO0.00.00.00.00.00.00.00.00.00.00.00.0

country:US


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value38546356063610271070838691607552483487
Percentage of NoncurrentAssets52.749.458.159.856.657.548.142.139.940.147.849.9
Percentage of Assets18.916.919.921.132.831.223.922.121.923.023.825.9
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.00.00.0

oii:SegmentGeographicalGroupsOfCountriesForeign


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value346475403427786791906950914825527490
Percentage of NoncurrentAssets47.350.641.940.243.442.551.957.960.159.952.250.1
Percentage of Assets16.917.414.314.125.123.125.830.433.034.426.026.1
Percentage of Assets oii:SegmentGeographicalGroupsOfCountriesForeign0.00.00.00.00.00.00.00.00.00.00.00.0

oii:SegmentGeographicalGroupsOfCountriesGroupThree


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value231821254443563834302820
Percentage of NoncurrentAssets3.32.02.22.42.42.33.22.32.22.22.82.1
Percentage of Assets1.20.70.80.81.41.31.61.21.21.31.41.1
Percentage of Assets oii:SegmentGeographicalGroupsOfCountriesGroupThree0.00.00.00.00.00.00.00.00.00.00.00.0

srt:Africa


Noncurrent
Period End2020-12-312019-12-312018-12-31
Value58124117
Percentage of NoncurrentAssets8.113.212.2
Percentage of Assets2.94.54.2
Percentage of Assets srt:Africa0.00.00.0

srt:AsiaPacific


Noncurrent
Period End2020-12-312019-12-312018-12-31
Value405448
Percentage of NoncurrentAssets5.65.85.1
Percentage of Assets2.02.01.7
Percentage of Assets srt:AsiaPacific0.00.00.0

Assets Noncurrent

us-gaap:AssetsNoncurrent

us-gaap:AssetsNoncurrent


Assets
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value280284302349341719615
Percentage of AssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets14.013.914.816.415.826.321.8

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value24542448245624182424245026222904287928572837283128122821281527902744271127282770282027912772274827582653266026472608248923802277215821362069197319161870177216951776171216311501
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets119.1122.2120.1118.7113.9113.295.7100.798.096.2100.496.996.996.493.188.788.887.787.285.685.083.080.880.479.579.175.878.177.177.576.175.275.477.174.773.275.976.273.879.182.281.880.379.8

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value19161887186518091777177818451958193119011872183817981767175117061644158815741603161015531505147614471380135413321296124411911150109210751043984953921878853912876844734
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets93.094.291.288.883.582.167.367.965.764.066.362.962.060.457.954.353.251.450.349.548.546.243.943.241.741.238.639.338.338.738.138.038.238.837.736.537.837.536.639.842.241.941.639.1

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.81.31.03.50.82.63.03.21.83.9
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value53756159160964767177694694795596499310141054106410831100112311531166121012381266127213101272130513141312124511891127106510601025989962948893841864835786766
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets26.128.028.929.930.431.028.332.832.332.234.134.034.936.035.234.535.636.336.836.036.536.836.937.237.837.937.238.838.838.838.037.237.238.337.036.738.138.637.239.240.039.938.740.8

us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementBusinessSegments

oii:AerospaceAndDefenseTechnologies


Property
Period End2020-12-312019-12-31
Value7.8929.574
Percentage of PropertyPlantAndEquipmentNet1.31.2
Percentage of Assets0.40.3
Percentage of Assets oii:AerospaceAndDefenseTechnologies7.06.9

oii:AerospaceAndDefenseTechnologiesMember


Property
Period End2020-09-302019-12-31
Value8.0839.574
Percentage of PropertyPlantAndEquipmentNet1.31.2
Percentage of Assets0.40.3
Percentage of Assets oii:AerospaceAndDefenseTechnologiesMember6.86.9

oii:IntegrityManagementDigitalSolutions


Property
Period End2020-12-312019-12-31
Value1213
Percentage of PropertyPlantAndEquipmentNet2.01.7
Percentage of Assets0.60.5
Percentage of Assets oii:IntegrityManagementDigitalSolutions15.05.7

oii:IntegrityManagementsDigitalSolutionsMember


Property
Period End2020-09-302019-12-31
Value1113
Percentage of PropertyPlantAndEquipmentNet2.01.7
Percentage of Assets0.60.5
Percentage of Assets oii:IntegrityManagementsDigitalSolutionsMember14.15.7

oii:ManufacturedProducts


Property
Period End2020-12-312019-12-31
Value94151
Percentage of PropertyPlantAndEquipmentNet16.019.5
Percentage of Assets4.65.5
Percentage of Assets oii:ManufacturedProducts21.724.9

oii:ManufacturedProductsMember


Property
Period End2020-09-302019-12-31
Value95151
Percentage of PropertyPlantAndEquipmentNet15.619.5
Percentage of Assets4.75.5
Percentage of Assets oii:ManufacturedProductsMember21.124.9

oii:OffshoreProjectsGroup


Property
Period End2020-12-312020-09-302019-12-31
Value212218255
Percentage of PropertyPlantAndEquipmentNet36.035.932.9
Percentage of Assets10.410.79.3
Percentage of Assets oii:OffshoreProjectsGroup59.260.250.7

oii:SubseaRobotics


Property
Period End2020-12-312019-12-31
Value252336
Percentage of PropertyPlantAndEquipmentNet42.743.3
Percentage of Assets12.312.3
Percentage of Assets oii:SubseaRobotics51.743.9

oii:SubseaRoboticsMember


Property
Period End2020-09-302019-12-31
Value262336
Percentage of PropertyPlantAndEquipmentNet43.143.3
Percentage of Assets12.912.3
Percentage of Assets oii:SubseaRoboticsMember51.243.9

us-gaap:AllOtherSegments


Property
Period End2020-12-312020-09-302019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1112109.931111312119.29213107.145
Percentage of PropertyPlantAndEquipmentNet1.92.11.41.01.11.11.00.90.81.31.20.9
Percentage of Assets0.60.60.40.40.40.40.40.30.30.50.40.4
Percentage of Assets us-gaap:AllOtherSegments2.02.52.22.12.12.32.42.03.95.95.42.0

us-gaap:OilAndGas


Property
Period End2020-12-312020-09-302019-12-312018-12-31
Value571588754943
Percentage of PropertyPlantAndEquipmentNet96.796.697.197.8
Percentage of Assets28.028.927.533.4
Percentage of Assets us-gaap:OilAndGas41.941.737.343.1

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value353535347473405410422421413500501512455464450445443448438443426421435314331360370347344347331343363356331339333157170178143130
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.71.81.71.73.53.414.814.214.414.214.617.117.317.515.114.814.614.414.213.813.213.212.412.312.69.49.410.611.010.811.011.511.612.413.113.213.113.813.97.37.98.57.17.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

oii:SubseaRobotics


Goodwillus-gaap:
Period End2020-12-312019-12-31
Value24129
Percentage of Goodwill70.131.9
Percentage of Assets1.24.7
Percentage of Assets oii:SubseaRobotics5.016.9

oii:SubseaRoboticsMember


Goodwillus-gaap:
Period End2020-09-302019-12-31
Value24129
Percentage of Goodwill69.831.9
Percentage of Assets1.24.7
Percentage of Assets oii:SubseaRoboticsMember4.716.9

us-gaap:OilAndGas


Goodwillus-gaap:
Period End2020-12-312020-09-302019-12-312018-12-31
Value2424383391
Percentage of Goodwill70.169.894.694.7
Percentage of Assets1.21.214.013.9
Percentage of Assets us-gaap:OilAndGas1.81.719.017.9

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1425798587936068787022
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.92.82.82.82.71.72.22.82.91.1

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-03-312019-01-01
Value152137141139144135163171182184
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.46.96.96.96.86.26.06.06.10.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1071081291321511891921912022402733163632792752702632542562182151701251281241341261241231341351341301451461409580716550
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.25.36.16.15.56.66.66.47.28.29.410.511.69.08.98.78.17.77.66.46.34.93.73.73.74.03.94.04.14.74.94.84.85.86.05.84.53.73.43.22.7

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value10692949689124145101105111102111918285898186779510076118921351211231431761431291521401381301541361251111061161008586
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.24.64.64.74.25.85.33.53.63.83.63.83.12.82.82.82.62.82.52.93.02.33.42.73.93.63.54.25.24.54.15.04.95.04.75.75.45.14.65.05.44.84.24.6

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


Accrued
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3536343035231.1571020485849657196828079558578625946544942343946
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.81.31.21.01.10.70.00.30.61.41.71.51.92.12.82.62.62.61.93.12.82.32.31.92.32.32.01.62.02.5

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value310276292289311298337313312309392364336289350372401390430382396435477482469431490510494469516471406374408398366353335265279294314255
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.113.814.314.214.613.812.310.910.610.413.912.511.69.911.611.813.012.613.811.811.912.913.914.113.512.914.015.114.614.616.515.614.213.514.814.814.514.414.012.413.014.115.513.6

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value61475045516111794737885
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.02.42.42.22.42.94.33.32.52.63.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value479416437431452485600510491500494476427372435461482477508501497523615623662601679725767695727703602598617615562525501421438429439388
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.320.821.421.221.322.421.917.716.716.817.516.314.712.714.414.715.615.416.215.515.015.618.018.219.117.919.321.422.721.623.223.221.021.622.322.822.321.420.919.720.320.521.720.7

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value201818201818191919200.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.00.90.91.00.80.90.70.70.70.70.0

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value55575573858189859097959572798375414027
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.72.82.73.64.03.73.33.03.13.33.43.22.32.32.42.41.51.71.4

Taxes Payable Current

us-gaap:TaxesPayableCurrent

us-gaap:TaxesPayableCurrent


Taxes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value4244353332363641282434
Percentage of TaxesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.12.21.81.71.51.71.31.41.00.81.2

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302020-12-312019-12-312018-12-312017-12-312014-03-312013-12-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value773805796786792900.07590941201251001200.0
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets37.539.429.127.826.22.80.02.63.23.44.45.04.15.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value77380480580580680679679979579078678278278579279579479379380280280079579779275075025080900.0407590941201251001200.00.00.0
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0
Percentage of Assets37.540.239.439.537.937.229.127.727.126.627.826.826.926.826.225.325.725.725.324.824.223.823.223.322.922.421.47.42.42.80.01.32.63.23.44.45.04.15.00.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value6063000.06063000.06063000.06063000.06063000.06063000.06063000.06063000.06063000.06063000.06063000.05354000.05354000.05354000.05354000.05354000.00
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.30.30.30.30.30.30.20.20.20.20.20.20.20.20.20.20.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value828389878485106109120122128163122132131387323330312362427428439410414418424397363336357307310249241227212216221204215208200147
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.04.24.44.34.03.93.93.84.14.14.55.64.24.54.312.310.510.710.011.212.912.712.812.011.912.512.111.710.710.511.410.210.99.08.78.48.48.89.29.610.09.99.97.8

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value163150156154160150160162172166170
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.97.57.67.67.57.05.95.65.95.60.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value26
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets1.3

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value22
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets1.1

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value19
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.9

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value19
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.9

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value122
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets6.0

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-302019-01-01
Value174180182191
Percentage of OperatingLeaseLiability100.0100.0100.0100.0
Percentage of Assets8.56.66.30.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-312019-12-312019-01-01
Value239251190
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0
Percentage of Assets11.79.20.0

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value64
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets3.1

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value55654255255361963010691297135213851409149615651632165914941491148915161571159116111578158815981583165720182172209020431977187418341815173416241611155715161506145513901224967915
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.027.127.027.229.129.139.044.946.046.649.951.253.955.854.947.548.248.248.548.548.047.946.046.546.147.247.259.564.265.165.365.365.566.265.664.364.365.764.970.869.769.568.565.10.00.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312015-12-312014-12-31
Value5625485585596256361075130313591391141515011570163816641499151615781657
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.327.427.327.529.429.439.245.246.246.850.151.454.155.955.047.748.546.047.2

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-355.009-361.108-359.306-380.589-393.793-404.422-334.097-366.087-332.928-333.131-339.377-313.669-307.981-270.175-292.351
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-63.1-65.9-64.4-68.0-63.0-63.5-31.1-28.1-24.5-23.9-24.0-20.9-19.6-16.5-17.6
Percentage of Assets-17.2-18.0-17.6-18.7-18.5-18.7-12.2-12.7-11.3-11.2-12.0-10.7-10.6-9.2-9.7
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value168168192190191189207203201198220217215211225
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest29.930.734.534.030.629.719.315.714.814.315.614.513.712.913.5
Percentage of Assets8.18.49.49.39.08.77.67.16.86.77.87.47.47.27.4
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value6.0636.0636.0636.0636.0636.0636.0636.0636.0636.0636.0635.3545.3545.3545.354
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest1.11.11.11.11.01.00.60.50.40.40.40.40.30.30.3
Percentage of Assets0.30.30.30.30.30.30.20.20.20.20.20.20.20.20.2
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value556542552553619630106912971352138514091496156516321659
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest98.998.998.998.999.099.099.499.599.699.699.699.699.799.799.7
Percentage of Assets27.027.127.027.229.129.139.044.946.046.649.951.253.955.854.9
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value134813411351137614551480185021132138217322042268233423672417
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest239.6244.7242.1246.0232.7232.5172.1162.2157.4156.2155.8151.1148.7144.5145.2
Percentage of Assets65.467.066.067.568.468.467.573.272.873.278.077.680.480.879.9
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-632.129-634.585-660.021-660.234-661.267-662.386-681.64-681.717-681.717-681.786-704.066-704.436-704.502-704.63-718.946
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-112.3-115.7-118.3-118.0-105.7-104.0-63.4-52.3-50.2-49.0-49.7-46.9-44.9-43.0-43.2
Percentage of Assets-30.7-31.7-32.3-32.4-31.1-30.6-24.9-23.6-23.2-22.9-24.9-24.1-24.3-24.1-23.8
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value27272727272727272727272727272727272727272727272727272727272727272727272727272727271313
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.41.41.41.31.31.01.00.90.91.00.91.00.90.90.90.90.90.90.90.80.80.80.80.80.80.80.80.80.90.90.91.01.01.01.01.11.11.21.31.30.70.7

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value192207220225227230229222212202
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.47.67.87.47.36.76.57.17.78.4
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-312009-12-31
Value168168192190191189207203201198220217215211225224221218227223221217230224220216229224220214222216211206212210206202202207212
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.18.49.49.39.08.77.67.16.86.77.87.47.47.27.47.17.27.17.36.96.76.56.76.66.46.46.56.66.56.77.17.17.47.47.77.88.28.38.410.211.3

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value1348134113511376145514801850211321382173220422682334236724172243226022722295232023592363236423632321228222402165207019891921185217711696164115791514146114261384132212391039
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets65.467.066.067.568.468.467.573.272.873.278.077.680.480.879.971.473.173.573.371.771.170.369.069.166.968.163.863.961.261.961.461.261.961.259.358.660.059.659.464.661.261.055.3

us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Retained
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value1351185022042417229523642240192116411426
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets66.067.578.079.973.369.063.861.459.359.4
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value-355.009-361.108-359.306-380.589-393.793-404.422-334.097-366.087-332.928-333.131-339.377-313.454-307.766-269.96-292.136-282.395-298.942-309.725-302.664-269.117-285.528-265.721-300.363-283.29-227.837-243.609-183.041-95.861-43.119-38.492-52.577-42.841-60.347-20.65417-0.218-40.635-15.4-27.191-21.85619-8.96-13.566
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-17.2-18.0-17.6-18.7-18.5-18.7-12.2-12.7-11.3-11.2-12.0-10.7-10.6-9.2-9.7-9.0-9.7-10.0-9.7-8.3-8.6-7.9-8.8-8.3-6.6-7.3-5.2-2.8-1.3-1.2-1.7-1.4-2.1-0.70.6-0.0-1.6-0.6-1.1-1.00.9-0.4-0.7

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value63266066166268168168168170470470470471871971972073173173173174374374369965630310210275757575848484647171546127
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.732.331.130.624.923.623.222.924.924.124.324.123.822.923.323.323.422.622.021.721.721.721.420.918.78.93.03.22.42.52.62.73.03.13.32.63.03.32.53.01.5

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value6063000.06063000.06063000.06063000.06063000.06063000.06063000.06063000.06063000.06063000.06063000.05354000.05354000.05354000.05354000.05354000.00
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.30.30.30.30.30.30.20.20.20.20.20.20.20.20.20.20.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value50-1.7231042637-32.15453953190.91119105.618-7.5364143597711792531871721928.094337109192821631341091201481043914614260364813910610292
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.1-0.424.66.18.8-6.08.17.910.83.90.23.82.11.3-1.68.78.513.215.921.314.78.825.923.223.71.036.711.320.79.818.315.813.416.819.014.25.924.624.810.16.710.427.920.722.221.2

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-7.15-5.007-13.876-3.397-8.611-26.706-14.741-51.927-38.205-29.914-16.39812-2.424-92.349-33.271-38.504-9.524-30.736-52.089-40.182-39.723-37.477-52.103-62.496-274.335-48.246-83.848-78.228-155.975-101.421-112.283-92.84-79.553-92.969-84.042-61.595-68.085-92.322-307.206-11.8-56.267-107.498-42.886-58.984-53.843-36.183
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.4-1.1-3.3-0.8-2.0-5.0-2.6-10.4-7.7-6.1-3.32.4-0.5-22.2-6.9-8.1-1.8-6.9-10.7-7.3-6.4-6.2-7.2-8.4-33.9-6.1-9.1-8.0-16.8-12.1-12.5-10.9-9.7-12.9-10.8-8.4-10.1-15.5-53.5-2.0-10.3-22.9-8.6-11.4-11.6-8.3

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-30.478-1.8060.0260.222-0.279-1.6680.0210.362-0.344-2.3380.1210.029-0.022-5.7560.07-14.464-14.895-16.633-14.709-26.477-26.476-29.48-25.725-26.418-21.316-83.542110-60.175-39.16133-62.583-58.608-38.803-20.351-47.471-24.424-13.781-32.767104-33.713-16.280.2550.0-44.284-124.461.658
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6.1-0.40.00.1-0.1-0.30.00.1-0.1-0.50.00.0-0.0-1.40.0-3.0-2.9-3.7-3.0-4.8-4.2-4.8-3.6-3.6-2.6-10.612.0-6.2-4.24.0-7.0-6.9-4.7-2.8-6.1-3.3-2.0-5.518.3-5.6-3.00.10.0-8.6-26.80.4

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value13344000.0-9273000.025268000.026049000.0-66195000.0-15515000.014075000.0-12496000.027609000.04631000.0-95406000.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.7-2.15.76.1-12.3-3.12.8-2.55.31.0-22.9

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-3.136-1.1364.0530.317-0.123-8.405-4.097-4.485-0.779-2.907-15.10950-25.8532.819-209.948-1.294-3.828-19.9436.802-7.4651.15-0.3891315-16.365162428107.102101.559381.91111140.257-5.4947.219-3.541-0.4754.299255.186-2.0682.34
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization us-gaap:StatementBusinessSegments

us-gaap:DepreciationDepletionAndAmortization

oii:UnallocatedExpenses


Depreciation
Period End2021-06-302021-03-312020-06-30
Value0.1840.7670.361
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value11213-24.275-33.421-30.303692.284-31.732-22.1811.4467332-20.81512-2.20836-59.997-20.675-36.701-30.088-35.572-80.439-93.098-1.792-3.467-144.01795716218641-48.192-2.9135474-31.935-2.124374618-34.24421-3.2643.795
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-1.479-10.62845-4.882-5.913-8.3841.012-7.9223.661155.3913.1930.9162.985-30.502-21.506-31.00917-17.065-15.338-9.09923-54.047-3.716-5.6674.248-58.791-7.1183.498-3.916-4.2285139234.45136331.956-6.494-5.231211.815-5.978-0.312
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value50-1.7231042637-32.15453953190.91119105.618-7.5364143597711792531871721928.094337109192821631341091201481043914614260364813910610292
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.1-0.424.66.18.8-6.08.17.910.83.90.23.82.11.3-1.68.78.513.215.921.314.78.825.923.223.71.036.711.320.79.818.315.813.416.819.014.25.924.624.810.16.710.427.920.722.221.2

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.241-9.365-25.0-79.365-24.788-367.598-262.912-25.523-35.182-24.827-64.139-65.979-33.076-49.133173-1.7682.132-7.534-11.028-11.79822252768656910212411091931049874808472515878564247595439
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.3-2.1-5.9-18.0-5.8-68.5-46.9-5.1-7.1-5.0-13.0-12.7-6.9-11.835.8-0.40.4-1.7-2.3-2.13.64.13.89.28.18.811.212.811.910.910.412.212.010.410.311.510.88.610.213.010.48.99.511.511.79.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:Parent


Profit
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-03-31
Value6.241-9.365-24.788-367.598-24.827-49.133
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.3-2.1-5.8-68.5-5.0-11.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value6.241-9.365-79.365-24.788-367.598-25.523-35.182-24.827-65.979-33.076-49.133
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.3-2.1-18.0-5.8-68.5-5.1-7.1-5.0-12.7-6.9-11.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.0263.1612.429-0.0513.1873.1163.232.3672.8552.983.0582.5773.1732.8120.6643.1443.9923.7184.1411.9883.8914.6674.6014.0624.5424.0844.1375.0775.7245.0964.8344.9115.1484.4874.0284.1894.1364.0893.4373.3852.8972.812.1332.1352.1482.074
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-7.15-5.007-13.876-3.397-8.611-26.706-14.741-51.927-38.205-29.914-16.39812-2.424-92.349-33.271-38.504-9.524-30.736-52.089-40.182-39.723-37.477-52.103-62.496-274.335-48.246-83.848-78.228-155.975-101.421-112.283-92.84-79.553-92.969-84.042-61.595-68.085-92.322-307.206-11.8-56.267-107.498-42.886-58.984-53.843-36.183
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.4-1.1-3.3-0.8-2.0-5.0-2.6-10.4-7.7-6.1-3.32.4-0.5-22.2-6.9-8.1-1.8-6.9-10.7-7.3-6.4-6.2-7.2-8.4-33.9-6.1-9.1-8.0-16.8-12.1-12.5-10.9-9.7-12.9-10.8-8.4-10.1-15.5-53.5-2.0-10.3-22.9-8.6-11.4-11.6-8.3

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1210147.98102718574029253027253318231729303121604445498579117104113938194846468837155545321695836
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-30.478-1.8060.0260.222-0.279-1.6680.0210.362-0.344-2.3380.1210.029-0.022-5.7560.07-14.464-14.895-16.633-14.709-26.477-26.476-29.48-25.725-26.418-21.316-83.542110-60.175-39.16133-62.583-58.608-38.803-20.351-47.471-24.424-13.781-32.767104-33.713-16.280.2550.0-44.284-124.461.658
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6.1-0.40.00.1-0.1-0.30.00.1-0.1-0.50.00.0-0.0-1.40.0-3.0-2.9-3.7-3.0-4.8-4.2-4.8-3.6-3.6-2.6-10.612.0-6.2-4.24.0-7.0-6.9-4.7-2.8-6.1-3.3-2.0-5.518.3-5.6-3.00.10.0-8.6-26.80.4

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2.9931.1261817223295272298228188167
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value7754205312913310498725256
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-31
Value2016145.3396.335.2455.5757.1685.14105.75.75.69.4888.402
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value592277203206-4.20.00.00.00.00.00.0
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.00.00.00.00.00.00.0

oii:AccruedRevenueContractAssets

oii:AccruedRevenueContractAssets


Accrued
Period End2021-06-302021-03-312020-06-302020-03-31
Value487411412455
Percentage of AccruedRevenueContractAssets100.0100.0100.0100.0

oii:Amortizationdeferredfinancecost

oii:Amortizationdeferredfinancecost


Amortizationdeferredfinancecost
Period End2021-06-302021-03-312020-09-30
Value1300000.0600000.0600000.0
Percentage of Amortizationdeferredfinancecost100.0100.0100.0

oii:BillingsContractAssets

oii:BillingsContractAssets


Billings
Period End2021-06-302021-03-312020-06-302020-03-31
Value-485380000.0-388300000.0-426300000.0-439200000.0
Percentage of BillingsContractAssets100.0100.0100.0100.0

oii:CustomerPaymentDeferrals

oii:CustomerPaymentDeferrals


Customer
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value222416-61.3174.69210
Percentage of CustomerPaymentDeferrals100.0100.0100.0100.0100.0100.0

oii:EffectOfExchangeRateOnWorkingCapital

oii:EffectOfExchangeRateOnWorkingCapital


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.438-0.670.3825.7646.794-9.3029.908-6.381.6340.371-6.8645.266-8.335.5597.7646.214-7.4331.472-24.77511-6.65510-10.862-14.88311-16.087-7.455-20.8570.4186.291-3.6397.099-7.696-10.4318.3616.028-3.7270.656-3.204-10.0050.3722.2481.7137.787-1.76-1.221
Percentage of EffectOfExchangeRateOnWorkingCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

oii:EffectiveIncomeTaxRateReconciliationUncertainTaxPosition

oii:EffectiveIncomeTaxRateReconciliationUncertainTaxPosition


Effective
Period End2020-12-31
Value3.961
Percentage of EffectiveIncomeTaxRateReconciliationUncertainTaxPosition100.0

oii:OtheradjustmentstoIncomefromcontinuingoperations

oii:OtheradjustmentstoIncomefromcontinuingoperations


Otheradjustmentsto
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value0.01.308-2.176115.708386252
Percentage of OtheradjustmentstoIncomefromcontinuingoperations0.0100.0100.0100.0100.0100.0100.0

oii:OtheradjustmentstoIncomefromcontinuingoperations us-gaap:StatementBusinessSegments

oii:AerospaceAndDefenseTechnologies


Otheradjustmentsto
Period End2021-06-302021-03-31
Value0.00.01
Percentage of OtheradjustmentstoIncomefromcontinuingoperations0.00.8

oii:AerospaceAndDefenseTechnologiesMember


Otheradjustmentsto
Period End2021-03-312020-12-312020-09-30
Value0.010.0270.545
Percentage of OtheradjustmentstoIncomefromcontinuingoperations0.8-1.24.9

oii:IntegrityManagementDigitalSolutions


Otheradjustmentsto
Period End2021-06-302021-03-312020-06-30
Value0.00.2171.536
Percentage of OtheradjustmentstoIncomefromcontinuingoperations0.016.626.9

oii:IntegrityManagementsDigitalSolutionsMember


Otheradjustmentsto
Period End2021-03-312020-12-312020-09-302020-03-31
Value0.2170.4220.0832.231
Percentage of OtheradjustmentstoIncomefromcontinuingoperations16.6-19.40.80.6

oii:ManufacturedProductsMember


Otheradjustmentsto
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.00.537-3.4892.5591.2121.984
Percentage of OtheradjustmentstoIncomefromcontinuingoperations0.041.1160.323.221.20.5

oii:OffshoreProjectsGroup


Otheradjustmentsto
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.00.1490.6435.3261.4051.216
Percentage of OtheradjustmentstoIncomefromcontinuingoperations0.011.4-29.548.224.60.3

oii:SubseaRoboticsMember


Otheradjustmentsto
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.00.3950.2212.5351.380.919
Percentage of OtheradjustmentstoIncomefromcontinuingoperations0.030.2-10.222.924.20.2

oii:RevenueRecognitionforRemainingPerformanceObligationsinnext24months

oii:RevenueRecognitionforRemainingPerformanceObligationsinnext24months


Revenue
Period End2021-06-302021-03-312020-12-31
Value2944-4.0
Percentage of RevenueRecognitionforRemainingPerformanceObligationsinnext24months100.0100.0100.0

oii:TotalAdjustmentsToIncomeFromContinuingOperations

oii:TotalAdjustmentsToIncomeFromContinuingOperations


Total
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.4151.3089.077665.708385
Percentage of TotalAdjustmentsToIncomeFromContinuingOperations100.0100.0100.0100.0100.0100.0

oii:TotalAdjustmentsToIncomeFromContinuingOperations us-gaap:StatementBusinessSegments

oii:AerospaceAndDefenseTechnologies


Total
Period End2021-06-302021-03-31
Value0.00.01
Percentage of TotalAdjustmentsToIncomeFromContinuingOperations0.00.8

oii:AerospaceAndDefenseTechnologiesMember


Total
Period End2021-03-312020-12-312020-09-30
Value0.010.0270.545
Percentage of TotalAdjustmentsToIncomeFromContinuingOperations0.80.30.8

oii:IntegrityManagementDigitalSolutions


Total
Period End2021-06-302021-03-312020-06-30
Value0.00.2171.536
Percentage of TotalAdjustmentsToIncomeFromContinuingOperations0.016.626.9

oii:IntegrityManagementsDigitalSolutionsMember


Total
Period End2021-03-312020-12-312020-09-302020-03-31
Value0.2170.970.083125
Percentage of TotalAdjustmentsToIncomeFromContinuingOperations16.610.70.132.6

oii:ManufacturedProducts


Total
Period End2021-06-302021-03-312020-06-30
Value0.00.5371.212
Percentage of TotalAdjustmentsToIncomeFromContinuingOperations0.041.121.2

oii:ManufacturedProductsMember


Total
Period End2021-03-312020-12-312020-09-302020-03-31
Value0.537-3.4894374
Percentage of TotalAdjustmentsToIncomeFromContinuingOperations41.1-38.465.619.3

oii:OffshoreProjectsGroup


Total
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.00.14911121.40575
Percentage of TotalAdjustmentsToIncomeFromContinuingOperations0.011.4125.019.024.619.4

oii:SubseaRoboticsMember


Total
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.00.3950.2219.5731.38110
Percentage of TotalAdjustmentsToIncomeFromContinuingOperations0.030.22.414.524.228.6

oii:UnallocatedExpenseMember


Total
Period End2021-06-302020-06-302020-03-31
Value1.4150.1750.28
Percentage of TotalAdjustmentsToIncomeFromContinuingOperations100.03.10.1

oii:UnrecognizedTaxBenefitsExpenseProbabilityThresholdofRealizingforTaxBenefitsExpenseRecognitionMinimumPercentage

oii:UnrecognizedTaxBenefitsExpenseProbabilityThresholdofRealizingforTaxBenefitsExpenseRecognitionMinimumPercentage


Unrecognized
Period End2021-03-31
Value50.0
Percentage of UnrecognizedTaxBenefitsExpenseProbabilityThresholdofRealizingforTaxBenefitsExpenseRecognitionMinimumPercentage100.0

oii:WriteoffEquipmentandIntangibles

oii:WriteoffEquipmentandIntangibles


Writeoff
Period End2020-12-312020-06-302020-03-312019-12-31
Value9.60.07.345
Percentage of WriteoffEquipmentandIntangibles100.00.0100.0100.0

us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities

us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value447.6421291066233530864884365854354-181.104434166881286928159104126-61.405235-14.67381-8.871703010456719-32.5929484-17.875-20.0896.81592474852
Percentage of AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesGrossUnrealizedGain

us-gaap:AvailableForSaleDebtSecuritiesGrossUnrealizedGain


Available
Period End2021-06-302021-03-31
Value-400000.01100000.0
Percentage of AvailableForSaleDebtSecuritiesGrossUnrealizedGain100.0100.0

us-gaap:CapitalizedContractCostAmortization

us-gaap:CapitalizedContractCostAmortization


Capitalized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1300000.0-1000000.0-1300000.0-1500000.03800000.01900000.02300000.01900000.01700000.02600000.0
Percentage of CapitalizedContractCostAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetReclassifiedToReceivable

us-gaap:ContractWithCustomerAssetReclassifiedToReceivable


Contract
Period End2020-12-31
Value1200000.0
Percentage of ContractWithCustomerAssetReclassifiedToReceivable100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-8.711-26.777-21.0198-14.858-66.038
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain


Debt
Period End2021-06-302021-03-31
Value200000.0300000.0
Percentage of DebtSecuritiesAvailableForSaleRealizedGain100.0100.0

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value35354636384348474949
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value35364687383561105050521285059545353535356745959576263586059565351505049494441403839373539413439
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization us-gaap:StatementBusinessSegments

oii:AerospaceAndDefenseTechnologies


Depreciation
Period End2021-06-302021-03-312020-06-30
Value1.4041.2760.658
Percentage of DepreciationAndAmortization4.03.51.7

oii:AerospaceAndDefenseTechnologiesMember


Depreciation
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-30
Value1.2760.6670.6540.6580.6870.64
Percentage of DepreciationAndAmortization3.51.40.71.70.21.3

oii:EnergyServicesAndProducts


Depreciation
Period End2021-06-302021-03-312020-06-30
Value333437
Percentage of DepreciationAndAmortization95.594.497.4

oii:EnergyServicesAndProductsMember


Depreciation
Period End2021-03-312020-12-312020-03-31
Value3444354
Percentage of DepreciationAndAmortization94.496.199.5

oii:IntegrityManagementDigitalSolutions


Depreciation
Period End2021-06-302021-03-312020-06-30
Value1.0911.1240.757
Percentage of DepreciationAndAmortization3.13.12.0

oii:IntegrityManagementsDigitalSolutionsMember


Depreciation
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-30
Value1.1241.2550.8660.7571242.087
Percentage of DepreciationAndAmortization3.12.71.02.034.94.1

oii:ManufacturedProducts


Depreciation
Period End2021-06-302021-03-312020-06-30
Value3.2483.2273.587
Percentage of DepreciationAndAmortization9.28.89.3

oii:ManufacturedProductsMember


Depreciation
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-30
Value3.2273.193443.587154.92
Percentage of DepreciationAndAmortization8.86.950.39.34.59.7

oii:OffshoreProjectsGroup


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-30
Value6.8627.12516158.2557410
Percentage of DepreciationAndAmortization19.519.536.617.321.321.021.0

oii:SubseaRoboticsMember


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-30
Value222223252513931
Percentage of DepreciationAndAmortization63.762.950.028.764.839.161.5

oii:UnallocatedExpenses


Depreciation
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.7671.1461.7120.3611.1081.1991.221.1821.1591.1251.0351.0341.5340.91.0881.1381.0980.9540.9460.9991.1241.1731.1841.3021.298
Percentage of DepreciationAndAmortization2.12.52.00.90.31.12.42.32.20.92.01.72.81.72.02.12.01.71.31.71.92.01.92.12.2

us-gaap:OilAndGas


Depreciation
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
Value448537342108484850127485851
Percentage of DepreciationAndAmortization96.197.397.496.398.296.196.196.298.596.497.095.8

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents


Effect
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
Value426000.0-737000.02805000.01448000.0-2579000.0-5671000.02650000.0-3408000.0-961000.0632000.02475000.0-4720000.0-2990000.0-2919000.0-1328000.01600000.0643000.0687000.0-2406000.0-1996000.0-3500000.0-1049000.04560000.0-3157000.0-10601000.0-2508000.0-7026000.0-1531000.027000.0164000.0
Percentage of EffectOfExchangeRateOnCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs


Financing
Period End2021-06-30
Value0.7
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:AccountsReceivable


Financing
Period End2021-03-31
Value2.4
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs0.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax


Foreign
Period End2021-06-302021-03-312020-06-302020-03-312018-12-312018-09-302018-06-30
Value-1.8-1.9-3.9-7.1-1.1-4.54.8
Percentage of ForeignCurrencyTransactionGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax us-gaap:Currency

currency:AOA


Foreign
Period End2021-06-302021-03-312020-06-302020-03-31
Value-0.5-1.4-0.21.9
Percentage of ForeignCurrencyTransactionGainLossBeforeTax27.873.75.1-26.8

currency:BRL


Foreign
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.1-0.1-3.7-4.0
Percentage of ForeignCurrencyTransactionGainLossBeforeTax-5.65.394.956.3

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax us-gaap:StatementGeographical

currency:AOA


Foreign
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value0.1-0.2-1.92.00.60.14.5
Percentage of ForeignCurrencyTransactionGainLossBeforeTax0.05.126.80.00.00.0-100.0

currency:BRL


Foreign
Period End2020-09-302019-09-30
Value0.71.3
Percentage of ForeignCurrencyTransactionGainLossBeforeTax0.00.0

us-gaap:GainLossOnSaleOfOtherAssets

us-gaap:GainLossOnSaleOfOtherAssets


Gain
Period End2021-06-30
Value1415000.0
Percentage of GainLossOnSaleOfOtherAssets100.0

us-gaap:GainLossOnSaleOfOtherAssets us-gaap:StatementBusinessSegments

oii:UnallocatedExpenseMember


Gain
Period End2021-06-30
Value1415000.0
Percentage of GainLossOnSaleOfOtherAssets100.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GainLossOnSaleOfPropertyPlantEquipment


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1.709-0.1523.118-0.976-0.605-0.0162.7293.3431.5810.011-0.2989.373-0.823-0.0370.213-0.1090.231-0.5510.129-0.508-0.0170.009-4.806-0.187-0.0310.107-0.0760.897-0.9611.305-0.344-0.1470.040.001-0.0130.4340.0690.0945.46517-0.141.10.288-0.232.774-0.074
Percentage of GainLossOnSaleOfPropertyPlantEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillImpairmentLoss

us-gaap:GoodwillImpairmentLoss


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value0.0400.0303150.00.076
Percentage of GoodwillImpairmentLoss0.0100.00.0100.0100.00.00.0100.0

us-gaap:GoodwillImpairmentLoss us-gaap:StatementBusinessSegments

oii:IntegrityManagementDigitalSolutions


Goodwill
Period End2020-09-302020-03-31
Value7.531123
Percentage of GoodwillImpairmentLoss18.440.7

oii:IntegrityManagementsDigitalSolutionsMember


Goodwill
Period End2020-09-302020-06-302020-03-31
Value0.00.0123
Percentage of GoodwillImpairmentLoss0.00.040.7

oii:ManufacturedProducts


Goodwill
Period End2020-09-302020-03-31
Value4.1e-0511
Percentage of GoodwillImpairmentLoss0.03.8

oii:ManufacturedProductsMember


Goodwill
Period End2020-09-302020-06-302020-03-31
Value400.011
Percentage of GoodwillImpairmentLoss100.00.03.8

oii:OffshoreProjectsGroup


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.0170.066
Percentage of GoodwillImpairmentLoss0.043.40.021.9

oii:SubseaProjects


Goodwill
Period End2020-09-302020-06-302020-03-312019-12-31
Value760.01306.1
Percentage of GoodwillImpairmentLoss187.00.042.940.7

oii:SubseaRobotics


Goodwill
Period End2020-09-302020-03-31
Value51102
Percentage of GoodwillImpairmentLoss125.233.7

oii:SubseaRoboticsMember


Goodwill
Period End2020-09-302020-06-302020-03-31
Value0.00.0102
Percentage of GoodwillImpairmentLoss0.00.033.7

us-gaap:GrossTransactionVolume

us-gaap:GrossTransactionVolume


Gross
Period End2020-12-31
Value428
Percentage of GrossTransactionVolume100.0

us-gaap:ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss

us-gaap:ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss


Impaired
Period End2020-12-312020-09-302020-06-302020-03-31
Value9.5717.2430.07.328
Percentage of ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss100.0100.00.0100.0

us-gaap:ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss us-gaap:StatementBusinessSegments

oii:IntegrityManagementsDigitalSolutionsMember


Impaired
Period End2020-12-31
Value0.17
Percentage of ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss1.8

oii:OffshoreProjectsGroup


Impaired
Period End2020-12-312020-09-30
Value9.4017.243
Percentage of ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss98.2100.0

oii:SubseaRoboticsMember


Impaired
Period End2020-09-302020-06-302020-03-31
Value0.00.07.328
Percentage of ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss0.00.0100.0

us-gaap:ImpairmentOfIntangibleAssetsFinitelived

us-gaap:ImpairmentOfIntangibleAssetsFinitelived


Impairment
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value-58.7630.00.0680.00.0
Percentage of ImpairmentOfIntangibleAssetsFinitelived100.00.00.0100.00.00.0

us-gaap:ImpairmentOfLongLivedAssetsHeldForUse

us-gaap:ImpairmentOfLongLivedAssetsHeldForUse


Impairment
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value1.6820.00.06817
Percentage of ImpairmentOfLongLivedAssetsHeldForUse100.00.00.0100.0100.0

us-gaap:ImpairmentOfLongLivedAssetsHeldForUse us-gaap:StatementBusinessSegments

oii:IntegrityManagementsDigitalSolutionsMember


Impairment
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.3780.00.00.167
Percentage of ImpairmentOfLongLivedAssetsHeldForUse22.50.00.00.2

oii:ManufacturedProductsMember


Impairment
Period End2020-09-302020-06-302020-03-31
Value0.00.061
Percentage of ImpairmentOfLongLivedAssetsHeldForUse0.00.088.8

oii:OffshoreProjectsGroup


Impairment
Period End2020-12-312020-09-302020-06-302020-03-31
Value1.3040.00.07.522
Percentage of ImpairmentOfLongLivedAssetsHeldForUse77.50.00.010.9

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value378000.0534000.0266000.0131000.0674000.01197000.0941000.0554000.00-164000.0-519000.0-1684000.0-737000.0-843000.0-185000.0-424000.0-394000.0-980000.0-299000.0-246000.0263000.0526000.0917000.01567000.01000.0-255000.0-32000.09000.08000.0-36000.024000.0134000.0-186000.0161000.0332000.0418000.0119000.0804000.0859000.01042000.01430000.0470000.0361000.0702000.0450000.0565000.0
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeferredRevenue

us-gaap:IncreaseDecreaseInDeferredRevenue


Increase
Period End2020-12-31
Value-5.0
Percentage of IncreaseDecreaseInDeferredRevenue100.0

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-31
Value62-20.37319-23.477-32.235-102.7847618-3.611-15.058-35.035745-41.194-30.895.378-30.636-42.288-25.544-95.583-39.13739-80.716-42.03469-40.20110719-24.817533619-14.20711-25.69
Percentage of IncreaseDecreaseInOtherCurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7.6911.6728.2013.578-10.443110.256-4.634-10.858-1.01-7.21-5.9046.062-6.535189.3074.4836.3723.933-9.346-2.986-45.5471622-2.042913-24.7149.669124.05.81712-0.0926.328102.9280.07219-20.223-0.771.3552.2790.4495.7580.759
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-03-31
Value-4.761-1.3981.52-0.769-12.8221.209-2.3461.016-2.075-10.5920.0718.3066.225-6.894-2.0250.463215.37-1.929-5.284-7.644-7.9141.855.316-13.6249.8693.5168.921-14.137-0.3731.5660.186-0.009-0.352-1.678-2.2672.5622.628-5.0621.0373.2070.324
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryWriteDown

us-gaap:InventoryWriteDown


Inventory
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312016-12-312016-09-302015-12-312015-09-302014-12-312014-09-30
Value0.07.0380.00.0210.00.00.030160.00.00.0
Percentage of InventoryWriteDown0.0100.00.00.0100.00.00.00.0100.0100.00.00.00.0

us-gaap:InventoryWriteDown us-gaap:StatementBusinessSegments

oii:SubseaRoboticsMember


Inventory
Period End2020-09-30
Value7.038
Percentage of InventoryWriteDown100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value683000.0519000.0881000.0414000.0511000.01277000.01352000.02089000.01848000.02604000.01775000.02645000.02950000.02592000.01976000.01997000.02045000.01337000.01479000.0684000.01442000.0295000.0171000.0229000.051000.0156000.043000.0130000.041000.079000.082000.039000.0243000.0190000.0573000.0824000.0194000.0344000.0428000.0204000.089000.0167000.0243000.0123000.0111000.0103000.0
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value6.468-2.85610-70.325
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-03-31
Value6.099-1.80210-70.3256.24622
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:Parent


Other
Period End2021-06-302021-03-312020-06-302020-03-312019-03-312018-03-31
Value6.099-1.80210-70.3256.24622
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-31
Value-369000.01054000.0
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value-6977000.02542000.0-1143000.03628000.0-647000.000
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.00.00.0

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital

us-gaap:ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value417000.01195000.0833000.04168000.0801000.0405000.0993000.01331000.01064000.0000793000.01579000.001132000.0717000.0707000.01362000.01182000.01828000.02098000.02698000.01264000.0947000.01054000.01238000.01239000.01271000.01024000.0677000.0850000.01568000.01184000.00000
Percentage of ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value22000.0-1806000.026000.0-1725000.01668000.0-1668000.021000.0362000.0-344000.0-2338000.0121000.029000.041000.0-1635000.070000.0277000.0-155000.0-1894000.06000.018000.073000.0-2018000.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt


Proceeds
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312018-12-312018-09-302017-12-312017-09-30
Value2.1252.3610.00.012-131.81280.00.0
Percentage of ProceedsFromSaleOfAvailableForSaleSecuritiesDebt100.0100.00.00.0100.0100.0100.00.00.0

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt us-gaap:InformationByCategoryOfDebtSecurity

us-gaap:Bonds


Proceeds
Period End2021-06-302021-03-31
Value1.92.4
Percentage of ProceedsFromSaleOfAvailableForSaleSecuritiesDebt89.4101.7

us-gaap:ProceedsFromSaleOfProductiveAssets

us-gaap:ProceedsFromSaleOfProductiveAssets


Proceeds
Period End2021-03-312020-03-31
Value2136000.0118000.0
Percentage of ProceedsFromSaleOfProductiveAssets100.0100.0

us-gaap:RestrictedStockExpense

us-gaap:RestrictedStockExpense


Restricted
Period End2021-03-312020-03-31
Value1.3551.446
Percentage of RestrictedStockExpense100.0100.0

us-gaap:RestrictedStockExpense us-gaap:StatementEquityComponents

us-gaap:Parent


Restricted
Period End2021-06-302021-03-312020-06-302020-03-31
Value2.0471.3552.9091.446
Percentage of RestrictedStockExpense0.0100.00.0100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures us-gaap:AwardType

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures

us-gaap:RestrictedStockUnitsRSU


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2.0471.3550.1712.9091.4462.7282.5120.6432.6063.2131.179
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures us-gaap:AwardType, us-gaap:StatementEquityComponents

us-gaap:RestrictedStock, us-gaap:AdditionalPaidInCapital


Stock
Period End2021-03-312020-06-302020-03-312019-06-302019-03-312018-03-31
Value-10.4391.79-5.992-5.143-5.143-3.951
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures-770.461.5-414.4-204.7-799.8-335.1

us-gaap:RestrictedStock, us-gaap:TreasuryStock


Stock
Period End2021-03-312020-06-302020-03-312019-03-312018-03-31
Value101.1195.9925.1433.951
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures770.438.5414.4799.8335.1

us-gaap:RestrictedStockUnitsRSU, us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-0.409-13.642-0.8621.79-11.8162.7282.443-16.4942.543.085-9.186
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures-20.0-1006.8-504.161.5-817.2100.097.3-2565.297.596.0-779.1

us-gaap:RestrictedStockUnitsRSU, us-gaap:Parent


Stock
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.1712.9091.4462.7282.5120.6432.6063.2131.179
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU, us-gaap:TreasuryStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-06-302019-03-312018-09-302018-06-302018-03-31
Value2.456141.0331.119130.069170.0660.12810
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures120.01106.8604.138.5917.22.72665.22.54.0879.1

us-gaap:TaxAdjustmentsSettlementsAndUnusualProvisions

us-gaap:TaxAdjustmentsSettlementsAndUnusualProvisions


Tax
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.00.2-42.2-3.23.71.4561.22.4
Percentage of TaxAdjustmentsSettlementsAndUnusualProvisions0.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:EntityCommonStockSharesOutstanding

dei:EntityCommonStockSharesOutstanding


Entity
Period End2021-07-232021-04-232021-02-192020-10-30
Value99999999
Percentage of EntityCommonStockSharesOutstanding100.0100.0100.0100.0

oii:AccountsReceivableAndContractAssets

oii:AccountsReceivableAndContractAssets


Accounts
Period End2020-12-31
Value51
Percentage of AccountsReceivableAndContractAssets100.0

oii:AccountsReceivableAndContractAssetsContingency

oii:AccountsReceivableAndContractAssetsContingency


Accounts
Period End2021-03-31
Value51
Percentage of AccountsReceivableAndContractAssetsContingency100.0

oii:AccruedJobCostsCurrent

oii:AccruedJobCostsCurrent


Accrued
Period End2021-06-302020-12-312019-09-302019-06-302019-03-312018-12-31
Value594755587162
Percentage of AccruedJobCostsCurrent100.0100.0100.0100.0100.0100.0

oii:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestThreholdForConsolidationPercentage

oii:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestThreholdForConsolidationPercentage


Consolidation
Period End2020-12-31
Value50.0
Percentage of ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestThreholdForConsolidationPercentage100.0

oii:DeferredCompensationPlanCashAwardNumberOfUnits us-gaap:AwardType

oii:DeferredCompensationPlanCashAwardNumberOfUnits

us-gaap:DeferredBonus


Deferred
Period End2020-12-31
Value280980.0
Percentage of DeferredCompensationPlanCashAwardNumberOfUnits100.0

oii:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsInterest

oii:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsInterest


Deferred
Period End2020-12-312019-12-31
Value2720
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsInterest100.0100.0

oii:DeferredTaxLiabilitiesInterest

oii:DeferredTaxLiabilitiesInterest


Deferred
Period End2020-12-31
Value47
Percentage of DeferredTaxLiabilitiesInterest100.0

oii:Deferredtaxassetreserveslongtermoperatingleaseliabilities

oii:Deferredtaxassetreserveslongtermoperatingleaseliabilities


Deferredtaxassetreserveslongtermoperatingleaseliabilities
Period End2020-12-312019-12-31
Value4050
Percentage of Deferredtaxassetreserveslongtermoperatingleaseliabilities100.0100.0

oii:EquityMethodInvestmentOwnershipInterestThresholdForConsolidationPercentage us-gaap:Range

oii:EquityMethodInvestmentOwnershipInterestThresholdForConsolidationPercentage

srt:Maximum


Equity
Period End2021-06-302019-09-302019-06-302019-03-31
Value50.00.50.50.5
Percentage of EquityMethodInvestmentOwnershipInterestThresholdForConsolidationPercentage100.0100.0100.0100.0

srt:Minimum


Equity
Period End2021-06-302019-09-302019-06-302019-03-31
Value20.00.20.20.2
Percentage of EquityMethodInvestmentOwnershipInterestThresholdForConsolidationPercentage40.040.040.040.0

oii:ForeignDeferredTaxAsset

oii:ForeignDeferredTaxAsset


Foreign
Period End2020-12-31
Value269
Percentage of ForeignDeferredTaxAsset100.0

oii:LineOfCreditFacilityAvailableAdditionalBorrowingCapacity

oii:LineOfCreditFacilityAvailableAdditionalBorrowingCapacity


Line
Period End2020-12-31
Value300
Percentage of LineOfCreditFacilityAvailableAdditionalBorrowingCapacity100.0

oii:LineOfCreditFacilityBasisSpreadOnVariableRate oii:AdvanceType, oii:BaseRateType, oii:InterestRateComponent, us-gaap:Range, us-gaap:DebtInstrument

oii:LineOfCreditFacilityBasisSpreadOnVariableRate

oii:AdjustedBaseRateAdvances, oii:EurodollarRate, oii:AdjustedBaseRate, srt:Minimum, oii:CreditAgreement


Line
Period End2020-12-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-31
Value1.00.010.010.010.010.010.01
Percentage of LineOfCreditFacilityBasisSpreadOnVariableRate100.0100.0100.0100.0100.0100.0100.0

oii:AdjustedBaseRateAdvances, oii:FederalFundsRate, oii:AdjustedBaseRate, srt:Minimum, oii:CreditAgreement


Line
Period End2020-12-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-31
Value0.50.0050.0050.0050.0050.0050.005
Percentage of LineOfCreditFacilityBasisSpreadOnVariableRate50.050.050.050.050.050.050.0

oii:LineOfCreditFacilityBasisSpreadOnVariableRate oii:AdvanceType, oii:InterestRateComponent, us-gaap:Range, us-gaap:DebtInstrument

oii:AdjustedBaseRateAdvances, oii:ApplicableMargin, srt:Maximum, oii:CreditAgreement


Line
Period End2020-12-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-31
Value0.750.00750.00750.00750.00750.00750.0075
Percentage of LineOfCreditFacilityBasisSpreadOnVariableRate75.075.075.075.075.075.075.0

oii:AdjustedBaseRateAdvances, oii:ApplicableMargin, srt:Minimum, oii:CreditAgreement


Line
Period End2020-12-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-31
Value0.1250.001250.001250.001250.001250.001250.00125
Percentage of LineOfCreditFacilityBasisSpreadOnVariableRate12.512.512.512.512.512.512.5

oii:EurodollarAdvances, oii:ApplicableMargin, srt:Maximum, us-gaap:LetterOfCredit


Line
Period End2020-12-312018-12-31
Value1.750.0175
Percentage of LineOfCreditFacilityBasisSpreadOnVariableRate175.0175.0

oii:EurodollarAdvances, oii:ApplicableMargin, srt:Minimum, oii:CreditAgreement


Line
Period End2020-12-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-31
Value1.1250.011250.011250.011250.011250.011250.01125
Percentage of LineOfCreditFacilityBasisSpreadOnVariableRate112.5112.5112.5112.5112.5112.5112.5

oii:MajorCustomerAboveBenchmarkThresholdNumber us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType

oii:MajorCustomerAboveBenchmarkThresholdNumber

us-gaap:Sales, us-gaap:CustomerConcentrationRisk


Major
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value1.01.01.01.01.01.01.01.01.001.00
Percentage of MajorCustomerAboveBenchmarkThresholdNumber100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0

oii:NoncashIncomeTaxBenefit

oii:NoncashIncomeTaxBenefit


Noncash
Period End2021-06-30
Value8.4
Percentage of NoncashIncomeTaxBenefit100.0

oii:RevenueRecognitionforRemainingPerformanceObligations

oii:RevenueRecognitionforRemainingPerformanceObligations


Revenue
Period End2021-12-312021-06-302021-03-312020-09-30
Value173132144177
Percentage of RevenueRecognitionforRemainingPerformanceObligations100.0100.0100.0100.0

oii:TotalOtherAssets

oii:TotalOtherAssets


Total
Period End2021-06-302020-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value294284795795615740774768772828729720714711693699645637638471492518539510506509505520539530522532523302301301260239
Percentage of TotalOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsAndFinancingReceivableAllowanceForCreditLoss

us-gaap:AccountsAndFinancingReceivableAllowanceForCreditLoss


Accounts
Period End2021-06-302021-03-31
Value1600000.01500000.0
Percentage of AccountsAndFinancingReceivableAllowanceForCreditLoss100.0100.0

us-gaap:AccountsPayableOtherCurrent

us-gaap:AccountsPayableOtherCurrent


Accounts
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value504740525654625859797972755150
Percentage of AccountsPayableOtherCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax

us-gaap:AccumulatedTranslationAdjustment


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value-359.306-334.097-339.377-292.351-303.074-297.515-178.81-50.14421-23.637
Percentage of AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivable


Allowance
Period End2020-12-312020-01-012019-12-31
Value3900000.02300000.07500000.0
Percentage of AllowanceForDoubtfulAccountsReceivable100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2020-12-312020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312014-03-312013-12-312013-09-302013-06-302012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value7499000.04613000.07499000.06593000.05676000.06698000.07116000.06430000.06782000.06151000.06217000.06151000.05543000.04746000.08288000.07982000.06189000.05089000.05893000.01043000.0287000.0137000.04453000.04168000.0894000.0389000.02298000.02069000.0563000.0577000.0594000.0511000.06093000.05938000.05655000.0274000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AlternativeInvestmentMeasurementInput us-gaap:MeasurementInputType

us-gaap:AlternativeInvestmentMeasurementInput

oii:WeightedAverageMemberHighRange


Alternative
Period End2020-12-31
Value15.0
Percentage of AlternativeInvestmentMeasurementInput100.0

oii:WeightedAverageMemberLowRange


Alternative
Period End2020-12-31
Value12.0
Percentage of AlternativeInvestmentMeasurementInput80.0

us-gaap:MeasurementInputLongTermRevenueGrowthRate


Alternative
Period End2020-12-312020-03-31
Value2.00.02
Percentage of AlternativeInvestmentMeasurementInput13.30.0

us-gaap:AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment

us-gaap:AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment


Assets
Period End2021-03-312020-12-312020-09-302019-12-31
Value107108128151
Percentage of AssetsNoncurrentOtherThanNoncurrentInvestmentsAndPropertyPlantAndEquipment100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesCurrent

us-gaap:AvailableForSaleSecuritiesCurrent


Available
Period End2020-12-312019-12-312018-12-312017-12-31
Value101010.00.0
Percentage of AvailableForSaleSecuritiesCurrent100.0100.0100.00.0

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue


Available
Period End2020-12-31
Value10000000.0
Percentage of AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue100.0

us-gaap:CapitalizedContractCostNet

us-gaap:CapitalizedContractCostNet


Capitalized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value8.68.18.39.612131513
Percentage of CapitalizedContractCostNet100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetGrossCurrent

us-gaap:ContractWithCustomerAssetGrossCurrent


Contract
Period End2021-06-302020-12-312020-06-302019-12-31
Value247221223221
Percentage of ContractWithCustomerAssetGrossCurrent100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetNetCurrent

us-gaap:ContractWithCustomerAssetNetCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-01-01
Value247245221220223237221197197221256171
Percentage of ContractWithCustomerAssetNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2020-12-312019-12-312018-12-312018-01-012017-12-31
Value5011785370.0
Percentage of ContractWithCustomerLiability100.0100.0100.0100.00.0

us-gaap:DebtInstrumentRepurchasedFaceAmount

us-gaap:DebtInstrumentRepurchasedFaceAmount


Debt
Period End2021-06-30
Value31
Percentage of DebtInstrumentRepurchasedFaceAmount100.0

us-gaap:DebtSecuritiesCurrent

us-gaap:DebtSecuritiesCurrent


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value6.9149.164101010101010101010
Percentage of DebtSecuritiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesCurrent us-gaap:InformationByCategoryOfDebtSecurity

us-gaap:Bonds


Debt
Period End2020-12-31
Value10.0
Percentage of DebtSecuritiesCurrent98.2

us-gaap:DebtSecuritiesCurrent us-gaap:StatementGeographical

country:AO


Debt
Period End2021-06-302020-12-31
Value6.910.0
Percentage of DebtSecuritiesCurrent99.898.2

us-gaap:DeferredGainLossOnDiscontinuationOfFairValueHedge

us-gaap:DeferredGainLossOnDiscontinuationOfFairValueHedge


Deferred
Period End2021-06-302021-03-312020-12-312020-09-30
Value8.982101011
Percentage of DeferredGainLossOnDiscontinuationOfFairValueHedge100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value79553971353429377298
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsDeferredIncome


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1.9584.8352.3812.0159.83181630101119
Percentage of DeferredTaxAssetsDeferredIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value66933222326013313310498725256
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value52119918922214
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration


Deferred
Period End2020-12-31
Value163
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration


Deferred
Period End2020-12-31
Value317
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value14164.6012.20360552711124.8755.36
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1615132238465048422624
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2745131124129.2358.4417.6768.6476.675
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses


Deferred
Period End2020-12-31
Value19
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses100.0

us-gaap:DeferredTaxLiabilitiesGrossNoncurrent

us-gaap:DeferredTaxLiabilitiesGrossNoncurrent


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value2.9931.1261842
Percentage of DeferredTaxLiabilitiesGrossNoncurrent100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesInvestments

us-gaap:DeferredTaxLiabilitiesInvestments


Deferred
Period End2020-12-312019-12-312018-12-31
Value2348000.02156000.02346000.0
Percentage of DeferredTaxLiabilitiesInvestments100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesLeasingArrangements


Deferred
Period End2020-12-312019-12-31
Value2843
Percentage of DeferredTaxLiabilitiesLeasingArrangements100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1.3436.2373665861261281291068874
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DueToEmployeesNoncurrent

us-gaap:DueToEmployeesNoncurrent


Due
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value12108.0764.3480.0152926
Percentage of DueToEmployeesNoncurrent100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value13110613512012210513711111696114101141161209218218191168
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:RestrictedStockUnitsRSU


Employee
Period End2020-12-31
Value8.6
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

us-gaap:RestrictedStockUnitsRSU


Employee
Period End2021-06-302021-03-312020-09-30
Value172011
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions100.0100.0100.0

us-gaap:EquityMethodInvestmentOwnershipPercentage us-gaap:Range

us-gaap:EquityMethodInvestmentOwnershipPercentage

srt:Maximum


Equity
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value50.050.050.00.50.50.5
Percentage of EquityMethodInvestmentOwnershipPercentage100.0100.0100.0100.0100.0100.0

srt:Minimum


Equity
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value20.020.020.00.20.20.2
Percentage of EquityMethodInvestmentOwnershipPercentage40.040.040.040.040.040.0

us-gaap:EquityMethodInvestments

us-gaap:EquityMethodInvestments


Equity
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3437394939493231323335363738394149434446494950505158
Percentage of EquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueConcentrationOfRiskCashSurrenderValue

us-gaap:FairValueConcentrationOfRiskCashSurrenderValue


Fair
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value3950515460555352423836
Percentage of FairValueConcentrationOfRiskCashSurrenderValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLosses

us-gaap:FinancingReceivableAllowanceForCreditLosses


Financing
Period End2021-06-302021-03-312020-12-31
Value900000.0600000.0600000.0
Percentage of FinancingReceivableAllowanceForCreditLosses100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLosses us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:AccountsReceivable


Financing
Period End2020-09-302020-06-302020-03-31
Value9200000.04100000.08500000.0
Percentage of FinancingReceivableAllowanceForCreditLosses0.00.00.0

us-gaap:InterestReceivable

us-gaap:InterestReceivable


Interest
Period End2021-06-302021-03-312020-12-312020-09-30
Value1300000.01300000.01500000.01600000.0
Percentage of InterestReceivable100.0100.0100.0100.0

us-gaap:InventoryWorkInProcessAndRawMaterials

us-gaap:InventoryWorkInProcessAndRawMaterials


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value62646268727276951008885838184117125149177161178194191164192185185167223247241251257208178156170155134119120129117
Percentage of InventoryWorkInProcessAndRawMaterials100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentsFairValueDisclosure

us-gaap:InvestmentsFairValueDisclosure


Investments
Period End2021-06-302021-03-312020-12-312020-09-30
Value6900000.09200000.010000000.010000000.0
Percentage of InvestmentsFairValueDisclosure100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths


Lessee
Period End2020-12-31
Value28
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths100.0

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LettersOfCreditOutstandingAmount


Letters
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5149556754587045423830
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent

us-gaap:LiabilitiesOtherThanLongtermDebtNoncurrent


Liabilities
Period End2020-12-312019-12-312018-12-31
Value89106128
Percentage of LiabilitiesOtherThanLongtermDebtNoncurrent100.0100.0100.0

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent

us-gaap:LiabilityForUncertainTaxPositionsNoncurrent


Liability
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value121415121211202018
Percentage of LiabilityForUncertainTaxPositionsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:DebtInstrument

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

oii:CreditAgreement


Line
Period End2023-01-252021-10-252018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312014-10-272011-12-31
Value450500300300300300300300300300300300300
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LoansPayableToBank

us-gaap:LoansPayableToBank


Loans
Period End2020-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value3000.00.00.00.03003003003003003003003003003003002502500.0
Percentage of LoansPayableToBank100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:LossContingencyEstimateOfPossibleLoss

us-gaap:LossContingencyEstimateOfPossibleLoss


Loss
Period End2021-06-30
Value51
Percentage of LossContingencyEstimateOfPossibleLoss100.0

us-gaap:LossContingencyReceivableCurrent

us-gaap:LossContingencyReceivableCurrent


Loss
Period End2021-06-30
Value73
Percentage of LossContingencyReceivableCurrent100.0

us-gaap:NoncontrollingInterestInVariableInterestEntity

us-gaap:NoncontrollingInterestInVariableInterestEntity


Noncontrolling
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value6063000.06063000.06063000.05354000.0000
Percentage of NoncontrollingInterestInVariableInterestEntity100.0100.0100.0100.00.00.00.0

us-gaap:NotesPayableFairValueDisclosure

us-gaap:NotesPayableFairValueDisclosure


Notes
Period End2021-06-302021-03-312020-12-312020-09-30
Value777779723571
Percentage of NotesPayableFairValueDisclosure100.0100.0100.0100.0

us-gaap:OperatingLossCarryforwards

us-gaap:OperatingLossCarryforwards


Operating
Period End2020-12-312018-12-312017-12-31
Value4800.00.0
Percentage of OperatingLossCarryforwards100.00.00.0

us-gaap:OperatingLossCarryforwardsValuationAllowance

us-gaap:OperatingLossCarryforwardsValuationAllowance


Operating
Period End2020-12-31
Value592
Percentage of OperatingLossCarryforwardsValuationAllowance100.0

us-gaap:OtherAccruedLiabilitiesNoncurrent

us-gaap:OtherAccruedLiabilitiesNoncurrent


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value2427304022151541141414
Percentage of OtherAccruedLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherAssetsMiscellaneousNoncurrent

us-gaap:OtherAssetsMiscellaneousNoncurrent


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value203731341119133.262139.4497.03
Percentage of OtherAssetsMiscellaneousNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherDeferredCompensationArrangementsLiabilityClassifiedNoncurrent us-gaap:TitleOfIndividual

us-gaap:OtherDeferredCompensationArrangementsLiabilityClassifiedNoncurrent

srt:BoardOfDirectorsChairman


Other
Period End2020-12-312019-12-31
Value1800000.02500000.0
Percentage of OtherDeferredCompensationArrangementsLiabilityClassifiedNoncurrent100.0100.0

us-gaap:OtherInventory

us-gaap:OtherInventory


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value65787987939810310511410810510410097119117119118118148160163180191194207210193196190188186176174156135122135138134119
Percentage of OtherInventory100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherInventoryNetOfReserves

us-gaap:OtherInventoryNetOfReserves


Other
Period End2021-06-302020-12-312019-12-312018-12-31
Value66789885
Percentage of OtherInventoryNetOfReserves100.0100.0100.0100.0

us-gaap:OtherPostretirementBenefitsPayableCurrentAndNoncurrent

us-gaap:OtherPostretirementBenefitsPayableCurrentAndNoncurrent


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value3346424549464545353432
Percentage of OtherPostretirementBenefitsPayableCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PrepaidExpenseCurrent

us-gaap:PrepaidExpenseCurrent


Prepaid
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value48436064421337969615249
Percentage of PrepaidExpenseCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PrepaidExpenseCurrentAndNoncurrent

us-gaap:PrepaidExpenseCurrentAndNoncurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value5549485551574344516260
Percentage of PrepaidExpenseCurrentAndNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligation


Revenue
Period End2021-06-302021-03-312020-12-312020-09-30
Value205188217226
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0

us-gaap:SeniorNotes us-gaap:DebtInstrument

us-gaap:SeniorNotes

oii:SeniorNotesdue2024


Senior
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312014-11-30
Value469500500500500500500500500500500500
Percentage of SeniorNotes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber


Share
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-312009-12-312008-12-31
Value1955300.02024200.02195300.01741300.01810600.01862500.01773100.01443900.01474600.01489900.01501600.01181800.01212400.01259000.01244300.01052000.01079600.01091100.01108900.0831290.0858720.0849010.0861530.0814400.0827370.0960290.0969000.0979160.0988430.01031600.01043000.01041900.01034300.01090800.01044200.01243000.01649500.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value16.222.6223.2732.8443.4860.4963.352.5342.2730.4925.7419.8617.37
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockCarryingBasis us-gaap:StatementEquityComponents

us-gaap:TreasuryStockCarryingBasis

us-gaap:TreasuryStock


Treasury
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value-660020000.0-681640000.0-704070000.0-718950000.0-731200000.0-743580000.0-656920000.0-75736000.0-84062000.0-71700000.0
Percentage of TreasuryStockCarryingBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockCommonShares

us-gaap:TreasuryStockCommonShares


Treasury
Period End2020-12-31
Value12
Percentage of TreasuryStockCommonShares100.0

us-gaap:TreasuryStockCommonValue

us-gaap:TreasuryStockCommonValue


Treasury
Period End2021-03-312020-12-312020-09-302019-12-31
Value634660660681
Percentage of TreasuryStockCommonValue100.0100.0100.0100.0

us-gaap:TreasuryStockShares

us-gaap:TreasuryStockShares


Treasury
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312014-03-312013-12-312013-09-302013-06-302012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312009-12-31
Value11111111111111121212121212121212121212121212112.8323552.6366442.6366442.6366442.9265142.9265142.9305142.5310392.7991182.7991182.3009181.3016620.499292
Percentage of TreasuryStockShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnamortizedDebtIssuanceExpense

us-gaap:UnamortizedDebtIssuanceExpense


Unamortized
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
Value5059000.05336000.05619000.05894000.06169000.06444000.06719000.06995000.07272000.07548000.07820000.08093000.08367000.08579000.04698000.04870000.05042000.05214000.05385000.05558000.05730000.05901000.06073000.06245000.06417000.06761000.0
Percentage of UnamortizedDebtIssuanceExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4500000.05700000.04300000.02600000.03200000.02000000.02900000.03300000.01700000.04400000.04000000.0
Percentage of UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Line plots across dimensions of each concept


Operating Margin
us-gaap:StatementBusinessSegments
(None,)
Operating  Marginus-gaap: Statement Business Segments
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:OperatingIncomeLoss
us-gaap:StatementBusinessSegments
(None,)
Operating Income Lossus-gaap: Statement Business Segments
us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents
(None,)
Other Comprehensive Income Loss Net Of Taxus-gaap: Statement Equity Components
us-gaap:ProfitLoss
us-gaap:StatementEquityComponents
(None,)
Profit Lossus-gaap: Statement Equity Components
us-gaap:Revenues
us-gaap:StatementBusinessSegments
(None,)
Revenuesus-gaap: Statement Business Segments
us-gaap:Revenues
us-gaap:StatementGeographical
(None,)
Revenuesus-gaap: Statement Geographical
us-gaap:Revenues
us-gaap:TimingOfTransferOfGoodOrService
(None,)
Revenuesus-gaap: Timing Of Transfer Of Good Or Service
us-gaap:Assets
us-gaap:StatementBusinessSegments
(None,)
Assetsus-gaap: Statement Business Segments
us-gaap:NoncurrentAssets
us-gaap:StatementGeographical
(None,)
Noncurrent Assetsus-gaap: Statement Geographical
us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementBusinessSegments
(None,)
Property Plant And Equipment Netus-gaap: Statement Business Segments
us-gaap:Goodwill
us-gaap:StatementBusinessSegments
(None,)
Goodwillus-gaap: Statement Business Segments
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents
(None,)
Stockholders Equity Including Portion Attributable To Noncontrolling Interestus-gaap: Statement Equity Components
us-gaap:ProfitLoss
us-gaap:StatementEquityComponents
(None,)
Profit Lossus-gaap: Statement Equity Components