v2.4.1.9

COMMITMENTS AND CONTINGENCIES (Details) (USD $) | 12 Months Ended | 1 Months Ended
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Mar. 31, 2015 aircraft Facility | Mar. 31, 2014 aircraft | Mar. 31, 2013 aircraft | Nov. 30, 2005 Affiliates
Analysis of aircraft orders and options [Roll Forward] |  |  |  |
Number Of Signed Client Contracts | 13 brs_NumberOfSignedClientContracts |  |  |
Number of Aircraft Orders Subject To Successful Development | 17 brs_NumberOfAircraftOrdersSubjectToSuccessfulDevelopment |  |  |
Number Of Aircrafts Purchased Without Orders | 3 brs_NumberOfAircraftsPurchasedWithoutOrders |  |  |
Leases, Operating [Abstract] |  |  |  |
Operating leases rental expense | $ 164,800,000 us-gaap_OperatingLeasesRentExpenseNet | $ 105,800,000 us-gaap_OperatingLeasesRentExpenseNet | $ 67,400,000 us-gaap_OperatingLeasesRentExpenseNet |
Operating Leases, Future Minimum Payments Due, Current | 166,444,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent |  |  |
Operating Leases, Future Minimum Payments, Due in Two Years | 163,248,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears |  |  |
Operating Leases, Future Minimum Payments, Due in Three Years | 146,271,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears |  |  |
Operating Leases, Future Minimum Payments, Due in Four Years | 118,705,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears |  |  |
Operating Leases, Future Minimum Payments, Due in Five Years | 79,792,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears |  |  |
Operating Leases, Future Minimum Payments, Due Thereafter | 78,614,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter |  |  |
Operating Leases, Future Minimum Payments Due | 753,074,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDue |  |  |
Number of aircraft sale leaseback | 14 brs_NumberOfAircraftSaleLeaseback | 14 brs_NumberOfAircraftSaleLeaseback | 11 brs_NumberOfAircraftSaleLeaseback |
Number of agreements to lease back aircraft | 14 brs_Numberofagreementstoleasebackaircraft | 14 brs_Numberofagreementstoleasebackaircraft |  |
Proceeds from assignment of aircraft purchase agreements | 0 brs_ProceedsfromAssignmentofAircraftPurchaseAgreements | 106,113,000 brs_ProceedsfromAssignmentofAircraftPurchaseAgreements | 0 brs_ProceedsfromAssignmentofAircraftPurchaseAgreements |
Number Of Aircraft Assigned Future Payments | 2 brs_NumberOfAircraftAssignedFuturePayments | 7 brs_NumberOfAircraftAssignedFuturePayments |  |
Sale Leaseback Transaction, Gross Proceeds | 380,700,000 us-gaap_SaleLeasebackTransactionGrossProceedsInvestingActivities | 246,400,000 us-gaap_SaleLeasebackTransactionGrossProceedsInvestingActivities | 255,800,000 us-gaap_SaleLeasebackTransactionGrossProceedsInvestingActivities |
Number of operating lease | 82 brs_NumberOfOperatingLease |  |  |
Monthly Rent payment | 13,143,000 us-gaap_SaleLeasebackTransactionMonthlyRentalPayments |  |  |
Collective Bargaining Agreements, Maximum Annual Escalation Per Employee, Percent | 6.00%brs_CollectiveBargainingAgreementsMaximumAnnualEscalationPerEmployeePercent |  |  |
Officer Compensation Expense | 5,500,000 brs_OfficerCompensationExpense | 2,900,000 brs_OfficerCompensationExpense | 2,000,000 brs_OfficerCompensationExpense |
Site Contingency, Number of Locations | 3 brs_SiteContingencyNumberofLocations |  |  |
Loss Contingency, Range of Possible Loss, Minimum | 5,000,000 us-gaap_LossContingencyRangeOfPossibleLossMinimum |  |  |
Loss Contingency, Range of Possible Loss, Maximum | 8,000,000 us-gaap_LossContingencyRangeOfPossibleLossMaximum |  |  |
West Africa [Member] |  |  |  |
Leases, Operating [Abstract] |  |  |  |
Work force reductions costs | 900,000 us-gaap_SeveranceCosts1 / us-gaap_StatementBusinessSegmentsAxis = brs_WestAfricaMember |  |  |
Alaska [Member] |  |  |  |
Leases, Operating [Abstract] |  |  |  |
Work force reductions costs | 900,000 us-gaap_SeveranceCosts1 / us-gaap_StatementGeographicalAxis = stpr_AK | 2,900,000 us-gaap_SeveranceCosts1 / us-gaap_StatementGeographicalAxis = stpr_AK |  |
Southern North Sea [Member] |  |  |  |
Leases, Operating [Abstract] |  |  |  |
Work force reductions costs |  | 2,100,000 us-gaap_SeveranceCosts1 / us-gaap_StatementGeographicalAxis = brs_SouthernNorthSeaMember | 2,200,000 us-gaap_SeveranceCosts1 / us-gaap_StatementGeographicalAxis = brs_SouthernNorthSeaMember |
Unionized Employees Concentration Risk [Member] |  |  |  |
Leases, Operating [Abstract] |  |  |  |
Concentration Risk, Percentage | 45.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_UnionizedEmployeesConcentrationRiskMember |  |  |
Unionized Employees Concentration Risk [Member] | One year [Member] |  |  |  |
Leases, Operating [Abstract] |  |  |  |
Concentration Risk, Percentage | 18.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_UnionizedEmployeesConcentrationRiskMember / brs_PeriodAxis = brs_YearOneMember |  |  |
Aircraft Operating Lease [Member] |  |  |  |
Leases, Operating [Abstract] |  |  |  |
Operating leases rental expense | 138,300,000 us-gaap_OperatingLeasesRentExpenseNet / brs_OperatingLeaseTypeAxis = brs_AircraftOperatingLeaseMember | 83,500,000 us-gaap_OperatingLeasesRentExpenseNet / brs_OperatingLeaseTypeAxis = brs_AircraftOperatingLeaseMember | 46,800,000 us-gaap_OperatingLeasesRentExpenseNet / brs_OperatingLeaseTypeAxis = brs_AircraftOperatingLeaseMember |
Operating Leases, Future Minimum Payments Due, Current | 158,066,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent / brs_OperatingLeaseTypeAxis = brs_AircraftOperatingLeaseMember |  |  |
Operating Leases, Future Minimum Payments, Due in Two Years | 155,450,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears / brs_OperatingLeaseTypeAxis = brs_AircraftOperatingLeaseMember |  |  |
Operating Leases, Future Minimum Payments, Due in Three Years | 137,407,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears / brs_OperatingLeaseTypeAxis = brs_AircraftOperatingLeaseMember |  |  |
Operating Leases, Future Minimum Payments, Due in Four Years | 110,139,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears / brs_OperatingLeaseTypeAxis = brs_AircraftOperatingLeaseMember |  |  |
Operating Leases, Future Minimum Payments, Due in Five Years | 72,232,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears / brs_OperatingLeaseTypeAxis = brs_AircraftOperatingLeaseMember |  |  |
Operating Leases, Future Minimum Payments, Due Thereafter | 26,999,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter / brs_OperatingLeaseTypeAxis = brs_AircraftOperatingLeaseMember |  |  |
Operating Leases, Future Minimum Payments Due | 660,293,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDue / brs_OperatingLeaseTypeAxis = brs_AircraftOperatingLeaseMember |  |  |
Other Operating Lease [Member] |  |  |  |
Leases, Operating [Abstract] |  |  |  |
Operating Leases, Future Minimum Payments Due, Current | 8,378,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent / brs_OperatingLeaseTypeAxis = brs_OtherOperatingLeaseMember |  |  |
Operating Leases, Future Minimum Payments, Due in Two Years | 7,798,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears / brs_OperatingLeaseTypeAxis = brs_OtherOperatingLeaseMember |  |  |
Operating Leases, Future Minimum Payments, Due in Three Years | 8,864,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears / brs_OperatingLeaseTypeAxis = brs_OtherOperatingLeaseMember |  |  |
Operating Leases, Future Minimum Payments, Due in Four Years | 8,566,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears / brs_OperatingLeaseTypeAxis = brs_OtherOperatingLeaseMember |  |  |
Operating Leases, Future Minimum Payments, Due in Five Years | 7,560,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears / brs_OperatingLeaseTypeAxis = brs_OtherOperatingLeaseMember |  |  |
Operating Leases, Future Minimum Payments, Due Thereafter | 51,615,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter / brs_OperatingLeaseTypeAxis = brs_OtherOperatingLeaseMember |  |  |
Operating Leases, Future Minimum Payments Due | 92,781,000 us-gaap_OperatingLeasesFutureMinimumPaymentsDue / brs_OperatingLeaseTypeAxis = brs_OtherOperatingLeaseMember |  |  |
Fiscal Year 2016 To Fiscal Year 2017 [Member] |  |  |  |
Leases, Operating [Abstract] |  |  |  |
Number of operating lease | 11 brs_NumberOfOperatingLease / brs_AircraftOperatingLeaseTermsAxis = brs_FiscalYearOneToFiscalYearTwoMember |  |  |
Monthly Rent payment | 1,627,000 us-gaap_SaleLeasebackTransactionMonthlyRentalPayments / brs_AircraftOperatingLeaseTermsAxis = brs_FiscalYearOneToFiscalYearTwoMember |  |  |
Fiscal Year 2018 To Fiscal Year 2020 [Member] |  |  |  |
Leases, Operating [Abstract] |  |  |  |
Number of operating lease | 49 brs_NumberOfOperatingLease / brs_AircraftOperatingLeaseTermsAxis = brs_FiscalYearThreeToFiscalYearFiveMember |  |  |
Monthly Rent payment | 9,512,000 us-gaap_SaleLeasebackTransactionMonthlyRentalPayments / brs_AircraftOperatingLeaseTermsAxis = brs_FiscalYearThreeToFiscalYearFiveMember |  |  |
Fiscal Year 2021 To Fiscal Year 2024 [Member] |  |  |  |
Leases, Operating [Abstract] |  |  |  |
Number of operating lease | 22 brs_NumberOfOperatingLease / brs_AircraftOperatingLeaseTermsAxis = brs_FiscalYearSixToFiscalYearTenMember |  |  |
Monthly Rent payment | 2,004,000 us-gaap_SaleLeasebackTransactionMonthlyRentalPayments / brs_AircraftOperatingLeaseTermsAxis = brs_FiscalYearSixToFiscalYearTenMember |  |  |
Nigerian Litigation [Member] |  |  |  |
Leases, Operating [Abstract] |  |  |  |
Number Of Affiliates |  |  |  | 2 brs_NumberOfAffiliates / us-gaap_LitigationCaseAxis = brs_NigerianLitigationMember
Loss Contingency, Damages Sought, Value |  |  |  | 16,300,000 us-gaap_LossContingencyDamagesSoughtValue / us-gaap_LitigationCaseAxis = brs_NigerianLitigationMember
Maximum [Member] |  |  |  |
Leases, Operating [Abstract] |  |  |  |
Sale Leaseback Transaction, Lease Terms, Number of Months | 180 brs_SaleLeasebackTransactionLeaseTermsNumberofMonths / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |
Sale Leaseback Transaction, Lease Terms, Number of Months, Renewal Option | 240 brs_SaleLeasebackTransactionLeaseTermsNumberofMonthsRenewalOption / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |
Commitments [Member] |  |  |  |
Analysis of aircraft orders and options [Roll Forward] |  |  |  |
Number of aircraft - beginning balance | 43 brs_NumberOfAircraftBalance / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | 45 brs_NumberOfAircraftBalance / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | 15 brs_NumberOfAircraftBalance / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember |
Number of aircraft delivered | (18)brs_NumberOfAircraftDelivered / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | (21)brs_NumberOfAircraftDelivered / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | (8)brs_NumberOfAircraftDelivered / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember |
Number of aircraft ordered | 8 brs_NumberOfAircraftOrdered / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | 18 brs_NumberOfAircraftOrdered / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | 26 brs_NumberOfAircraftOrdered / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember |
Number of new options | 0 brs_NewOptions / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | 0 brs_NewOptions / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | 0 brs_NewOptions / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember |
Number of exercised options | 12 brs_ExercisedOptions / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | 8 brs_ExercisedOptions / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | 12 brs_ExercisedOptions / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember |
Number of expired options | 0 brs_ExpiredOptions / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | 0 brs_ExpiredOptions / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | 0 brs_ExpiredOptions / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember |
Number of orders assigned subject to leaseback | 0 brs_OrdersTransferred / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | (7)brs_OrdersTransferred / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | 0 brs_OrdersTransferred / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember |
Number of aircraft - ending balance | 45 brs_NumberOfAircraftBalance / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | 43 brs_NumberOfAircraftBalance / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember | 45 brs_NumberOfAircraftBalance / brs_AircraftPurchaseContractsTypeAxis = us-gaap_CommitmentsMember |
Options [Member] |  |  |  |
Analysis of aircraft orders and options [Roll Forward] |  |  |  |
Number of aircraft - beginning balance | 55 brs_NumberOfAircraftBalance / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | 70 brs_NumberOfAircraftBalance / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | 40 brs_NumberOfAircraftBalance / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember |
Number of aircraft delivered | 0 brs_NumberOfAircraftDelivered / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | 0 brs_NumberOfAircraftDelivered / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | 0 brs_NumberOfAircraftDelivered / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember |
Number of aircraft ordered | 0 brs_NumberOfAircraftOrdered / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | 0 brs_NumberOfAircraftOrdered / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | 0 brs_NumberOfAircraftOrdered / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember |
Number of new options | 0 brs_NewOptions / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | 0 brs_NewOptions / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | 42 brs_NewOptions / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember |
Number of exercised options | (12)brs_ExercisedOptions / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | (8)brs_ExercisedOptions / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | (12)brs_ExercisedOptions / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember |
Number of expired options | (13)brs_ExpiredOptions / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | (7)brs_ExpiredOptions / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | 0 brs_ExpiredOptions / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember |
Number of orders assigned subject to leaseback | 0 brs_OrdersTransferred / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | 0 brs_OrdersTransferred / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | 0 brs_OrdersTransferred / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember |
Number of aircraft - ending balance | 30 brs_NumberOfAircraftBalance / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | 55 brs_NumberOfAircraftBalance / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember | 70 brs_NumberOfAircraftBalance / brs_AircraftPurchaseContractsTypeAxis = brs_OptionsMember |
Aircraft [Member] |  |  |  |
Unrecorded Unconditional Purchase Obligation, Fiscal Year Maturity [Abstract] |  |  |  |
Unrecorded Unconditional Purchase Obligation Minimum Quantity Required Due In Year One | 27 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearOne / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required, Due In Year Two | 5 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearTwo / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required, Due In Year Three | 6 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearThree / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation Minimum Quantity Required Due In Year Four And After | 7 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearFourAndAfter / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required | 45 us-gaap_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequired / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation, Due in Next Twelve Months | 416,617,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation, Due within Two Years | 88,547,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation, Due within Three Years | 75,936,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation, Due within Four Years And After | 87,231,000 brs_UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversaryAndAfter / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation | 668,331,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Options [Abstract] |  |  |  |
Unrecorded Conditional Purchase Obligation Maximum Quantity Required Due In Year One | 3 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequiredDueInYearOne / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Conditional Purchase Obligation, Maximum Quantity Required, Due In Year Two | 13 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequiredDueInYearTwo / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Conditional Purchase Obligation, Maximum Quantity Required, Due In Year Three | 14 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequiredDueInYearThree / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Conditional Purchase Obligation Maximum Quantity Required Due In Year Four And After | 0 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequiredDueInYearFourAndAfter / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Conditional Purchase Obligation Maximum Quantity Required | 30 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequired / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Conditional Purchase Obligation Balance On First Anniversary | 124,382,000 brs_UnrecordedConditionalPurchaseObligationBalanceOnFirstAnniversary / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Conditional Purchase Obligation Balance On Second Anniversary | 286,814,000 brs_UnrecordedConditionalPurchaseObligationBalanceOnSecondAnniversary / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Conditional Purchase Obligation Balance On Third Anniversary | 183,060,000 brs_UnrecordedConditionalPurchaseObligationBalanceOnThirdAnniversary / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Conditional Purchase Obligation Balance On Fourth Anniversary And After | 0 brs_UnrecordedConditionalPurchaseObligationBalanceOnFourthAnniversaryAndAfter / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Unrecorded Conditional Purchase Obligation Balance Sheet Amount | 594,256,000 brs_UnrecordedConditionalPurchaseObligationBalanceSheetAmount / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember |  |  |
Aircraft [Member] | Medium Aircraft [Member] |  |  |  |
Unrecorded Unconditional Purchase Obligation, Fiscal Year Maturity [Abstract] |  |  |  |
Unrecorded Unconditional Purchase Obligation Minimum Quantity Required Due In Year One | 8 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearOne / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required, Due In Year Two | 0 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearTwo / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required, Due In Year Three | 0 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearThree / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation Minimum Quantity Required Due In Year Four And After | 0 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearFourAndAfter / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required | 8 us-gaap_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequired / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAircraftMember |  |  |
Options [Abstract] |  |  |  |
Unrecorded Conditional Purchase Obligation Maximum Quantity Required Due In Year One | 3 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequiredDueInYearOne / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAircraftMember |  |  |
Unrecorded Conditional Purchase Obligation, Maximum Quantity Required, Due In Year Two | 4 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequiredDueInYearTwo / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAircraftMember |  |  |
Unrecorded Conditional Purchase Obligation, Maximum Quantity Required, Due In Year Three | 7 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequiredDueInYearThree / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAircraftMember |  |  |
Unrecorded Conditional Purchase Obligation Maximum Quantity Required Due In Year Four And After | 0 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequiredDueInYearFourAndAfter / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAircraftMember |  |  |
Unrecorded Conditional Purchase Obligation Maximum Quantity Required | 14 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequired / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAircraftMember |  |  |
Aircraft [Member] | Large Aircraft [Member] |  |  |  |
Unrecorded Unconditional Purchase Obligation, Fiscal Year Maturity [Abstract] |  |  |  |
Unrecorded Unconditional Purchase Obligation Minimum Quantity Required Due In Year One | 10 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearOne / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_LargeAircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required, Due In Year Two | 5 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearTwo / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_LargeAircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required, Due In Year Three | 6 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearThree / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_LargeAircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation Minimum Quantity Required Due In Year Four And After | 7 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearFourAndAfter / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_LargeAircraftMember |  |  |
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required | 28 us-gaap_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequired / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_LargeAircraftMember |  |  |
Options [Abstract] |  |  |  |
Unrecorded Conditional Purchase Obligation Maximum Quantity Required Due In Year One | 0 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequiredDueInYearOne / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_LargeAircraftMember |  |  |
Unrecorded Conditional Purchase Obligation, Maximum Quantity Required, Due In Year Two | 9 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequiredDueInYearTwo / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_LargeAircraftMember |  |  |
Unrecorded Conditional Purchase Obligation, Maximum Quantity Required, Due In Year Three | 7 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequiredDueInYearThree / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_LargeAircraftMember |  |  |
Unrecorded Conditional Purchase Obligation Maximum Quantity Required Due In Year Four And After | 0 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequiredDueInYearFourAndAfter / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_LargeAircraftMember |  |  |
Unrecorded Conditional Purchase Obligation Maximum Quantity Required | 16 brs_UnrecordedConditionalPurchaseObligationMaximumQuantityRequired / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_LargeAircraftMember |  |  |
Aircraft [Member] | U.K. SAR [Member] |  |  |  |
Unrecorded Unconditional Purchase Obligation, Fiscal Year Maturity [Abstract] |  |  |  |
Unrecorded Unconditional Purchase Obligation Minimum Quantity Required Due In Year One | 9 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearOne / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_U.K.SARMember |  |  |
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required, Due In Year Two | 0 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearTwo / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_U.K.SARMember |  |  |
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required, Due In Year Three | 0 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearThree / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_U.K.SARMember |  |  |
Unrecorded Unconditional Purchase Obligation Minimum Quantity Required Due In Year Four And After | 0 brs_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequiredDueInYearFourAndAfter / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_U.K.SARMember |  |  |
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required | 9 us-gaap_UnrecordedUnconditionalPurchaseObligationMinimumQuantityRequired / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_U.K.SARMember |  |  |
Unrecorded Unconditional Purchase Obligation, Due in Next Twelve Months | 122,796,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_U.K.SARMember |  |  |
Unrecorded Unconditional Purchase Obligation, Due within Two Years | 0 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_U.K.SARMember |  |  |
Unrecorded Unconditional Purchase Obligation, Due within Three Years | 0 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_U.K.SARMember |  |  |
Unrecorded Unconditional Purchase Obligation, Due within Four Years And After | 0 brs_UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversaryAndAfter / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_U.K.SARMember |  |  |
Unrecorded Unconditional Purchase Obligation | 122,796,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_U.K.SARMember |  |  |
Aircraft [Member] | Medium And Large [Member] |  |  |  |
Unrecorded Unconditional Purchase Obligation, Fiscal Year Maturity [Abstract] |  |  |  |
Unrecorded Unconditional Purchase Obligation, Due in Next Twelve Months | 293,821,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAndLargeMember |  |  |
Unrecorded Unconditional Purchase Obligation, Due within Two Years | 88,547,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAndLargeMember |  |  |
Unrecorded Unconditional Purchase Obligation, Due within Three Years | 75,936,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAndLargeMember |  |  |
Unrecorded Unconditional Purchase Obligation, Due within Four Years And After | 87,231,000 brs_UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversaryAndAfter / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAndLargeMember |  |  |
Unrecorded Unconditional Purchase Obligation | 545,535,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount / brs_AircraftPurchaseContractsTypeAxis = brs_AircraftMember / us-gaap_AircraftTypeAxis = brs_MediumAndLargeMember |  |  |
Other Commitments [Member] |  |  |  |
Unrecorded Unconditional Purchase Obligation, Fiscal Year Maturity [Abstract] |  |  |  |
Unrecorded Unconditional Purchase Obligation | $ 308,200,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount / brs_AircraftPurchaseContractsTypeAxis = brs_OtherCommitmentsMember |  |  |

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- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 + Details
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
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