v2.4.1.9

VARIABLE INTEREST ENTITIES AND OTHER INVESTMENTS IN SIGNIFICANT AFFILIATES (Details) | 3 Months Ended | 9 Months Ended |  |  | 9 Months Ended | 3 Months Ended | 9 Months Ended |  |  |  |  | 9 Months Ended |  | 9 Months Ended | 1 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended |  |  |
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Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Mar. 31, 2014 USD ($) | Mar. 31, 2013 USD ($) | Dec. 31, 2014 Unrelated Local Nigerian Partners [Member] | Dec. 31, 2014 Nigerian Company owned by 100% Nigerian Employees [Member] | Dec. 31, 2014 Employee Trust Fund [Member] | Dec. 31, 2014 Bristow Aviation Holdings Limited [Member] USD ($) | Dec. 31, 2013 Bristow Aviation Holdings Limited [Member] USD ($) | Dec. 31, 2014 Bristow Aviation Holdings Limited [Member] USD ($) | Dec. 31, 2013 Bristow Aviation Holdings Limited [Member] USD ($) | Dec. 31, 2014 Bristow Aviation Holdings Limited [Member] GBP (£) | Mar. 31, 2014 Bristow Aviation Holdings Limited [Member] USD ($) | May 31, 2004 Bristow Aviation Holdings Limited [Member] USD ($) | May 31, 2004 Bristow Aviation Holdings Limited [Member] GBP (£) | Apr. 30, 2004 Bristow Aviation Holdings Limited [Member] | Dec. 31, 2014 Bristow Aviation Holdings Limited [Member] Caledonia Investments Plc [Member] People voting_rights | Dec. 31, 2014 Bristow Aviation Holdings Limited [Member] Director One [Member] voting_rights | Dec. 31, 2014 Bristow Aviation Holdings Limited [Member] Director Two [Member] voting_rights | Dec. 31, 2014 Bristow Aviation Holdings Limited [Member] Caledonia Investments Plc [Member] | Dec. 31, 2014 Bristow Aviation Holdings Limited [Member] European Union [Member] | Dec. 31, 2014 Bristow Helicopters Nigeria Ltd [Member] | Jul. 31, 2014 Nigerian Company owned by 100% Nigerian Employees [Member] | Dec. 31, 2013 Nigerian Company owned by 100% Nigerian Employees [Member] | Dec. 31, 2014 Pan African Airlines Nigeria Ltd [Member] | Dec. 31, 2014 HCA [Member] USD ($) | Dec. 31, 2014 HCA [Member] USD ($) | Dec. 31, 2014 HCA [Member] GBP (£) | Mar. 31, 2014 HCA [Member] | Dec. 31, 2014 Lider Taxi Aereo S.A. [Member] | Mar. 31, 2014 Lider Taxi Aereo S.A. [Member]
Variable Interest Entities And Other Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of variable interest entities |  |  | 4 brs_NumberOfVariableInterestEntities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage in Variable Interest Entity |  |  |  |  |  |  |  |  |  |  |  | 49.00%us-gaap_VariableInterestEntityOwnershipPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  | 40.00%us-gaap_VariableInterestEntityOwnershipPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowHelicoptersNigeriaLtdMember |  |  | 50.17%us-gaap_VariableInterestEntityOwnershipPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_PanAfricanAirlinesNigeriaLtdMember |  |  |  |  |  |
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage, Third Party |  |  |  |  |  |  | 10.00%brs_VariableInterestEntityQualitativeorQuantitativeInformationOwnershipPercentageThirdParty / brs_ThirdpartyAxis = brs_UnrelatedLocalNigerianPartnersMember | 48.00%brs_VariableInterestEntityQualitativeorQuantitativeInformationOwnershipPercentageThirdParty / brs_ThirdpartyAxis = brs_NigerianCompanyownedby100NigerianEmployeesMember | 2.00%brs_VariableInterestEntityQualitativeorQuantitativeInformationOwnershipPercentageThirdParty / brs_ThirdpartyAxis = brs_EmployeeTrustFundMember |  |  | 51.00%brs_VariableInterestEntityQualitativeorQuantitativeInformationOwnershipPercentageThirdParty / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  | 46.00%brs_VariableInterestEntityQualitativeorQuantitativeInformationOwnershipPercentageThirdParty / brs_ThirdpartyAxis = brs_CaledoniaInvestmentsPlcMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember | 5.00%brs_VariableInterestEntityQualitativeorQuantitativeInformationOwnershipPercentageThirdParty / brs_ThirdpartyAxis = us-gaap_EuropeanUnionMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |
Purchase of deferred stock shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,000,000 brs_VariableInterestEntityDeferredStockPurchase / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember | 8,000,000 brs_VariableInterestEntityDeferredStockPurchase / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition share price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | £ 1 us-gaap_BusinessAcquisitionSharePrice / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Amount Paid For Deferred Shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 14,400,000 brs_TotalAmountPaidForDeferredShares / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of subordinated unsecured loan stock |  |  |  |  |  |  |  |  |  | 141,900,000 us-gaap_UnsecuredDebt / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 141,900,000 us-gaap_UnsecuredDebt / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 91,000,000 us-gaap_UnsecuredDebt / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on unsecured loan |  |  |  |  |  |  |  |  |  |  |  | 13.50%us-gaap_SubordinatedBorrowingInterestRate / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred interest cost |  |  |  |  |  |  |  |  |  |  |  | 1,400,000,000 us-gaap_InterestExpenseDebt / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number Of Voting Rights |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 brs_NumberOfVotingRights / us-gaap_TitleOfIndividualAxis = brs_CaledoniaInvestmentsPlcMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember | 1 brs_NumberOfVotingRights / us-gaap_TitleOfIndividualAxis = us-gaap_DirectorMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember | 1 brs_NumberOfVotingRights / us-gaap_TitleOfIndividualAxis = brs_DirectorTwoMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |
Number of Board Of Directors Nominations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 brs_NumberofBoardOfDirectorsNomination / us-gaap_TitleOfIndividualAxis = brs_CaledoniaInvestmentsPlcMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |
Call option price held by noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000 brs_CallOptionPriceHeldByNoncontrollingInterest / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Call Option Rate Over LIBOR |  |  |  |  |  |  |  |  |  | 3.00%brs_CallOptionRateOverLIBOR / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 3.00%brs_CallOptionRateOverLIBOR / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Call Option Guaranteed Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12.00%brs_CallOptionGuaranteedRate / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember | 12.00%brs_CallOptionGuaranteedRate / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Put Option Guaranteed Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.00%brs_PutOptionGuaranteedRate / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_HelideckCertificationAgencyMember | 41.90%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_LiderTaxiAereoS.A.Member | 42.50%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_LiderTaxiAereoS.A.Member
Variable Interest Entity, Qualitative or Quantitative Information, Purchased Percentage From Third Party |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 29.00%brs_VariableInterestEntityQualitativeorQuantitativeInformationPurchasedPercentageFromThirdParty / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_NigerianCompanyownedby100NigerianEmployeesMember | 19.00%brs_VariableInterestEntityQualitativeorQuantitativeInformationPurchasedPercentageFromThirdParty / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_NigerianCompanyownedby100NigerianEmployeesMember |  |  |  |  |  |  |
Proceeds from sale of unconsolidated affiliate |  |  | 4,185,000 us-gaap_ProceedsFromSaleOfEquityMethodInvestments | 112,210,000 us-gaap_ProceedsFromSaleOfEquityMethodInvestments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,185,000 us-gaap_ProceedsFromSaleOfEquityMethodInvestments / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_HelideckCertificationAgencyMember | 2,700,000 us-gaap_ProceedsFromSaleOfEquityMethodInvestments / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_HelideckCertificationAgencyMember |  |  |
Gain on sale of unconsolidated affiliates | 3,921,000 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal | 3,921,000 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal | 103,924,000 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,921,000 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_HelideckCertificationAgencyMember | 3,921,000 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_HelideckCertificationAgencyMember |  |  |  |
Statement of Financial Position [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 121,366,000 us-gaap_CashAndCashEquivalentsAtCarryingValue | 323,230,000 us-gaap_CashAndCashEquivalentsAtCarryingValue | 121,366,000 us-gaap_CashAndCashEquivalentsAtCarryingValue | 323,230,000 us-gaap_CashAndCashEquivalentsAtCarryingValue | 204,341,000 us-gaap_CashAndCashEquivalentsAtCarryingValue | 215,623,000 us-gaap_CashAndCashEquivalentsAtCarryingValue |  |  |  | 105,290,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 105,290,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 173,490,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts Receivable, Net, Current | 295,571,000 us-gaap_AccountsReceivableNetCurrent |  | 295,571,000 us-gaap_AccountsReceivableNetCurrent |  | 297,443,000 us-gaap_AccountsReceivableNetCurrent |  |  |  |  | 447,351,000 us-gaap_AccountsReceivableNetCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 447,351,000 us-gaap_AccountsReceivableNetCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 311,641,000 us-gaap_AccountsReceivableNetCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventories | 139,027,000 us-gaap_InventoryNet |  | 139,027,000 us-gaap_InventoryNet |  | 137,463,000 us-gaap_InventoryNet |  |  |  |  | 93,352,000 us-gaap_InventoryNet / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 93,352,000 us-gaap_InventoryNet / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 94,288,000 us-gaap_InventoryNet / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prepaid expenses and other current assets | 50,140,000 us-gaap_PrepaidExpenseAndOtherAssetsCurrent |  | 50,140,000 us-gaap_PrepaidExpenseAndOtherAssetsCurrent |  | 53,084,000 us-gaap_PrepaidExpenseAndOtherAssetsCurrent |  |  |  |  | 51,988,000 us-gaap_PrepaidExpenseAndOtherAssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 51,988,000 us-gaap_PrepaidExpenseAndOtherAssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 45,791,000 us-gaap_PrepaidExpenseAndOtherAssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total current assets | 631,941,000 us-gaap_AssetsCurrent |  | 631,941,000 us-gaap_AssetsCurrent |  | 721,607,000 us-gaap_AssetsCurrent |  |  |  |  | 697,981,000 us-gaap_AssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 697,981,000 us-gaap_AssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 625,210,000 us-gaap_AssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in unconsolidated affiliates | 257,073,000 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures |  | 257,073,000 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures |  | 262,615,000 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures |  |  |  |  | 344,000 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 344,000 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 1,414,000 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Net | 2,129,388,000 us-gaap_PropertyPlantAndEquipmentNet |  | 2,129,388,000 us-gaap_PropertyPlantAndEquipmentNet |  | 2,268,751,000 us-gaap_PropertyPlantAndEquipmentNet |  |  |  |  | 223,889,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 223,889,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 217,969,000 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | 53,828,000 us-gaap_Goodwill |  | 53,828,000 us-gaap_Goodwill |  | 56,680,000 us-gaap_Goodwill |  |  |  |  | 38,492,000 us-gaap_Goodwill / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 38,492,000 us-gaap_Goodwill / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 41,218,000 us-gaap_Goodwill / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other assets | 107,512,000 us-gaap_OtherAssetsNoncurrent |  | 107,512,000 us-gaap_OtherAssetsNoncurrent |  | 88,604,000 us-gaap_OtherAssetsNoncurrent |  |  |  |  | 61,705,000 us-gaap_OtherAssetsNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 61,705,000 us-gaap_OtherAssetsNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 45,477,000 us-gaap_OtherAssetsNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total assets | 3,179,742,000 us-gaap_Assets |  | 3,179,742,000 us-gaap_Assets |  | 3,398,257,000 us-gaap_Assets |  |  |  |  | 1,022,411,000 us-gaap_Assets / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 1,022,411,000 us-gaap_Assets / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 931,288,000 us-gaap_Assets / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts payable | 90,047,000 us-gaap_AccountsPayableCurrent |  | 90,047,000 us-gaap_AccountsPayableCurrent |  | 89,818,000 us-gaap_AccountsPayableCurrent |  |  |  |  | 330,967,000 us-gaap_AccountsPayableCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 330,967,000 us-gaap_AccountsPayableCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 182,892,000 us-gaap_AccountsPayableCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued Liabilities | 200,343,000 us-gaap_AccruedLiabilitiesCurrent |  | 200,343,000 us-gaap_AccruedLiabilitiesCurrent |  | 204,498,000 us-gaap_AccruedLiabilitiesCurrent |  |  |  |  | 129,757,000 us-gaap_AccruedLiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 129,757,000 us-gaap_AccruedLiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 113,820,000 us-gaap_AccruedLiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued interest | 5,530,000 us-gaap_InterestPayableCurrent |  | 5,530,000 us-gaap_InterestPayableCurrent |  | 16,157,000 us-gaap_InterestPayableCurrent |  |  |  |  | 1,436,382,000 us-gaap_InterestPayableCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 1,436,382,000 us-gaap_InterestPayableCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 1,291,581,000 us-gaap_InterestPayableCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current deferred taxes | 12,670,000 us-gaap_DeferredTaxLiabilitiesCurrent |  | 12,670,000 us-gaap_DeferredTaxLiabilitiesCurrent |  | 12,372,000 us-gaap_DeferredTaxLiabilitiesCurrent |  |  |  |  | 3,657,000 us-gaap_DeferredTaxLiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 3,657,000 us-gaap_DeferredTaxLiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 3,588,000 us-gaap_DeferredTaxLiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current Maturities of long-term debt | 14,277,000 us-gaap_DebtCurrent |  | 14,277,000 us-gaap_DebtCurrent |  | 14,207,000 us-gaap_DebtCurrent |  |  |  |  | 6,326,000 us-gaap_DebtCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 6,326,000 us-gaap_DebtCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 9,664,000 us-gaap_DebtCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total current liabilities | 373,008,000 us-gaap_LiabilitiesCurrent |  | 373,008,000 us-gaap_LiabilitiesCurrent |  | 457,825,000 us-gaap_LiabilitiesCurrent |  |  |  |  | 1,907,089,000 us-gaap_LiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 1,907,089,000 us-gaap_LiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 1,601,545,000 us-gaap_LiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total long-term debt | 803,911,000 us-gaap_LongTermDebtNoncurrent |  | 803,911,000 us-gaap_LongTermDebtNoncurrent |  | 827,095,000 us-gaap_LongTermDebtNoncurrent |  |  |  |  | 157,407,000 us-gaap_LongTermDebtNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 157,407,000 us-gaap_LongTermDebtNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 172,391,000 us-gaap_LongTermDebtNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued pension liabilities | 62,110,000 us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent |  | 62,110,000 us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent |  | 86,823,000 us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent |  |  |  |  | 62,110,000 us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 62,110,000 us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 86,824,000 us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other liabilities and deferred credits | 59,953,000 us-gaap_OtherLiabilitiesNoncurrent |  | 59,953,000 us-gaap_OtherLiabilitiesNoncurrent |  | 78,126,000 us-gaap_OtherLiabilitiesNoncurrent |  |  |  |  | 7,080,000 us-gaap_OtherLiabilitiesNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 7,080,000 us-gaap_OtherLiabilitiesNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 2,252,000 us-gaap_OtherLiabilitiesNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred taxes | 162,895,000 us-gaap_DeferredTaxLiabilitiesNoncurrent |  | 162,895,000 us-gaap_DeferredTaxLiabilitiesNoncurrent |  | 169,519,000 us-gaap_DeferredTaxLiabilitiesNoncurrent |  |  |  |  | 1,156,000 us-gaap_DeferredTaxLiabilitiesNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 1,156,000 us-gaap_DeferredTaxLiabilitiesNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 13,062,000 us-gaap_DeferredTaxLiabilitiesNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Temporary equity | 23,660,000 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount |  | 23,660,000 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount |  | 22,283,000 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount |  |  |  |  | 23,660,000 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 23,660,000 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 22,283,000 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities |  |  |  |  |  |  |  |  |  | 2,158,502,000 us-gaap_Liabilities / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  | 2,158,502,000 us-gaap_Liabilities / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  | 1,898,357,000 us-gaap_Liabilities / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue | 460,140,000 us-gaap_Revenues | 412,335,000 us-gaap_Revenues | 1,408,314,000 us-gaap_Revenues | 1,228,657,000 us-gaap_Revenues |  |  |  |  |  | 371,974,000 us-gaap_Revenues / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember | 328,231,000 us-gaap_Revenues / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember | 1,147,406,000 us-gaap_Revenues / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember | 970,038,000 us-gaap_Revenues / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Income (Loss) |  |  |  |  |  |  |  |  |  | (13,633,000)us-gaap_OperatingIncomeLoss / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember | 12,782,000 us-gaap_OperatingIncomeLoss / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember | 10,085,000 us-gaap_OperatingIncomeLoss / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember | 40,449,000 us-gaap_OperatingIncomeLoss / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | $ 71,000 us-gaap_ProfitLoss | $ 19,014,000 us-gaap_ProfitLoss | $ 72,899,000 us-gaap_ProfitLoss | $ 155,810,000 us-gaap_ProfitLoss |  |  |  |  |  | $ (58,582,000)us-gaap_ProfitLoss / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember | $ (37,179,000)us-gaap_ProfitLoss / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember | $ (143,930,000)us-gaap_ProfitLoss / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember | $ 11,707,000 us-gaap_ProfitLoss / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = brs_BristowAviationHoldingsLimitedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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