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OPERATIONS, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)
3 Months Ended 12 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2015
aircraft
Mar. 31, 2014
aircraft
Mar. 31, 2013
aircraft
Valuation and Qualifying Accounts Disclosure [Line Items]                      
Dormant, obsolete and excess inventory $ 19,100,000us-gaap_InventoryValuationReserves       $ 50,500,000us-gaap_InventoryValuationReserves       $ 19,100,000us-gaap_InventoryValuationReserves $ 50,500,000us-gaap_InventoryValuationReserves  
Aircraft Exit Plan, Period                   2 years  
Gain (loss) on disposal of assets (10,300,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment (26,300,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment 100,000us-gaap_GainLossOnSaleOfPropertyPlantEquipment 600,000us-gaap_GainLossOnSaleOfPropertyPlantEquipment 100,000us-gaap_GainLossOnSaleOfPropertyPlantEquipment 4,000,000us-gaap_GainLossOnSaleOfPropertyPlantEquipment (3,100,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment (1,700,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment (35,849,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment (722,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment 8,068,000us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Insurance Recoveries                     4,700,000us-gaap_InsuranceRecoveries
Movement in Valuation Allowances and Reserves [Roll Forward]                      
Impairment of inventories                 7,167,000us-gaap_InventoryWriteDown 12,669,000us-gaap_InventoryWriteDown 0us-gaap_InventoryWriteDown
Property, Plant and Equipment [Line Items]                      
Construction in progress within property and equipment 306,000,000us-gaap_ConstructionInProgressGross       477,900,000us-gaap_ConstructionInProgressGross       306,000,000us-gaap_ConstructionInProgressGross 477,900,000us-gaap_ConstructionInProgressGross  
Impairment charges on assets held for sale                 36,057,000us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf 6,814,000us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf  
Number of aircraft reclassed held for sale to property and equipment                     4brs_NumberOfAircraftReclassedHeldForSaleToPropertyAndEquipment
Gain from aircraft reclassed from held for sale to property and eqiupment                     8,700,000brs_GainFromAircraftReclassedFromHeldForSaleToPropertyAndEqiupment
Goodwill [Roll Forward]                      
Goodwill, beginning balance       56,680,000us-gaap_Goodwill       28,897,000us-gaap_Goodwill 56,680,000us-gaap_Goodwill 28,897,000us-gaap_Goodwill  
Goodwill, translation adjustments                 (5,304,000)us-gaap_GoodwillTranslationAdjustments 1,880,000us-gaap_GoodwillTranslationAdjustments  
Goodwill, acquired during period                 24,252,000us-gaap_GoodwillAcquiredDuringPeriod 26,479,000us-gaap_GoodwillAcquiredDuringPeriod  
Goodwill, impairment loss                   (576,000)us-gaap_GoodwillImpairmentLoss  
Goodwill, ending balance 75,628,000us-gaap_Goodwill       56,680,000us-gaap_Goodwill       75,628,000us-gaap_Goodwill 56,680,000us-gaap_Goodwill 28,897,000us-gaap_Goodwill
Business acquisition, purchase price allocation, goodwill, expected tax deductible amount 4,800,000us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount               4,800,000us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount    
Finite-lived Intangible Assets [Roll Forward]                      
Intangible Assets, Gross Beginning Balance       26,628,000us-gaap_IntangibleAssetsGrossExcludingGoodwill       9,750,000us-gaap_IntangibleAssetsGrossExcludingGoodwill 26,628,000us-gaap_IntangibleAssetsGrossExcludingGoodwill 9,750,000us-gaap_IntangibleAssetsGrossExcludingGoodwill  
Finite-Lived Intangible Assets, Translation Adjustments                 (2,085,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments (78,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments  
Finite-lived Intangible Assets Acquired                 3,763,000us-gaap_FinitelivedIntangibleAssetsAcquired1 16,956,000us-gaap_FinitelivedIntangibleAssetsAcquired1  
Intangible Assets, Gross Ending Balance 28,306,000us-gaap_IntangibleAssetsGrossExcludingGoodwill       26,628,000us-gaap_IntangibleAssetsGrossExcludingGoodwill       28,306,000us-gaap_IntangibleAssetsGrossExcludingGoodwill 26,628,000us-gaap_IntangibleAssetsGrossExcludingGoodwill 9,750,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
Accumulated Amortization of Intangible Assets- Beginning Balance       (8,329,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization       (6,808,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization (8,329,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization (6,808,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization  
Amortization of Intangible Assets                 (1,762,000)us-gaap_AmortizationOfIntangibleAssets (1,521,000)us-gaap_AmortizationOfIntangibleAssets  
Accumulated Amortization of Intangible Assets- Ending Balance (10,091,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization       (8,329,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization       (10,091,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization (8,329,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization (6,808,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Weighted Average Remaining Contractual Life, in Years                 10 years 3 months 16 days    
Future Amortization Expense, Year One 2,114,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths               2,114,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths    
Future Amortization Expense, Year Two 1,553,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo               1,553,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo    
Future Amortization Expense, Year Three 1,472,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree               1,472,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree    
Future Amortization Expense, Year Four 1,200,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour               1,200,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour    
Future Amortization Expense, Year Five 996,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive               996,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive    
Future Amortization Expense, After Year Five 10,880,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive               10,880,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive    
Future Amortization Expense, Total 18,215,000us-gaap_FiniteLivedIntangibleAssetsNet               18,215,000us-gaap_FiniteLivedIntangibleAssetsNet    
Other [Line Items]                      
Number of aircraft operated                 501us-gaap_NumberOfAircraftOperated    
Unamortized debt issuance expense 10,000,000us-gaap_UnamortizedDebtIssuanceExpense       12,300,000us-gaap_UnamortizedDebtIssuanceExpense       10,000,000us-gaap_UnamortizedDebtIssuanceExpense 12,300,000us-gaap_UnamortizedDebtIssuanceExpense  
Deferred Tax Assets, Net, Noncurrent 50,700,000us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent       17,600,000us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent       50,700,000us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent 17,600,000us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent  
Deferred Contract Acquisition Cost, Non Current 42,400,000us-gaap_DeferredSetUpCostsNoncurrent       15,200,000us-gaap_DeferredSetUpCostsNoncurrent       42,400,000us-gaap_DeferredSetUpCostsNoncurrent 15,200,000us-gaap_DeferredSetUpCostsNoncurrent  
Foreign currency transaction gain/loss                 (6,500,000)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax (3,700,000)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax (1,100,000)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax
Impact of Foreign Exchange Rates on Unconsolidated affiliates                 (25,700,000)brs_ImpactOfForeignExchangeRatesOnUnconsolidatedAffiliates (3,900,000)brs_ImpactOfForeignExchangeRatesOnUnconsolidatedAffiliates (3,900,000)brs_ImpactOfForeignExchangeRatesOnUnconsolidatedAffiliates
Extinguishment of debt                 2,591,000us-gaap_GainsLossesOnExtinguishmentOfDebt 0us-gaap_GainsLossesOnExtinguishmentOfDebt 14,932,000us-gaap_GainsLossesOnExtinguishmentOfDebt
Deferred Sale Leaseback Advance Total 55,900,000brs_DeferredSaleLeasebackAdvanceTotal       166,300,000brs_DeferredSaleLeasebackAdvanceTotal       55,900,000brs_DeferredSaleLeasebackAdvanceTotal 166,300,000brs_DeferredSaleLeasebackAdvanceTotal  
Deferred sale leaseback advance - current 55,934,000brs_DeferredSaleLeasebackAdvanceCurrent       136,930,000brs_DeferredSaleLeasebackAdvanceCurrent       55,934,000brs_DeferredSaleLeasebackAdvanceCurrent 136,930,000brs_DeferredSaleLeasebackAdvanceCurrent  
Deferred Sale Leaseback Advance - Long-term 0brs_DeferredSaleLeasebackAdvanceLongterm       29,400,000brs_DeferredSaleLeasebackAdvanceLongterm       0brs_DeferredSaleLeasebackAdvanceLongterm 29,400,000brs_DeferredSaleLeasebackAdvanceLongterm  
Proceeds from assignment of aircraft purchase agreements                 0brs_ProceedsfromAssignmentofAircraftPurchaseAgreements 106,113,000brs_ProceedsfromAssignmentofAircraftPurchaseAgreements 0brs_ProceedsfromAssignmentofAircraftPurchaseAgreements
Number Of Aircraft Assigned Future Payments                 2brs_NumberOfAircraftAssignedFuturePayments 7brs_NumberOfAircraftAssignedFuturePayments  
Number Of Aircraft Movement Into (Out Of) Deferred Sale Leaseback Advance                 (5)brs_NumberOfAircraftMovementIntoOutOfDeferredSaleLeasebackAdvance    
Deferred Sale Leaseback, Liability For Cash Received And Payments Made 129,900,000brs_DeferredSaleLeasebackLiabilityForCashReceivedAndPaymentsMade               129,900,000brs_DeferredSaleLeasebackLiabilityForCashReceivedAndPaymentsMade    
Completion of deferred sale leaseback                 183,688,000brs_DeferredSaleLeasebackCompletion 0brs_DeferredSaleLeasebackCompletion 0brs_DeferredSaleLeasebackCompletion
Removal of Deferred Sale Leaseback Advance                 182,600,000brs_RemovalofDeferredSaleLeasebackAdvance    
Senior Notes [Member] | Senior Notes Due 2022 [Member]                      
Other [Line Items]                      
Extinguishment of debt                 2,591,000us-gaap_GainsLossesOnExtinguishmentOfDebt
/ us-gaap_DebtInstrumentAxis
= brs_SeniorNotesDue2022Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
   
Other Income (Expense)                 (2,600,000)us-gaap_OtherNonoperatingIncomeExpense
/ us-gaap_DebtInstrumentAxis
= brs_SeniorNotesDue2022Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
   
Senior Notes [Member] | Senior Notes Due 2017 [Member]                      
Other [Line Items]                      
Extinguishment of debt                     (14,900,000)us-gaap_GainsLossesOnExtinguishmentOfDebt
/ us-gaap_DebtInstrumentAxis
= brs_SeniorNotesDue2017Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
Unconsolidated Affiliates [Member]                      
Other [Line Items]                      
Number of aircraft operated                 130us-gaap_NumberOfAircraftOperated
/ dei_LegalEntityAxis
= brs_UnconsolidatedAffiliatesMember
   
FB Entities [Member]                      
Other [Line Items]                      
Other Income (Expense)                   1,100,000us-gaap_OtherNonoperatingIncomeExpense
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= brs_FBEntitiesMember
 
Client Contracts [Member]                      
Finite-lived Intangible Assets [Roll Forward]                      
Intangible Assets, Gross Beginning Balance       7,129,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
      7,187,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
7,129,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
7,187,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
 
Finite-Lived Intangible Assets, Translation Adjustments                 (76,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
(58,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
 
Finite-lived Intangible Assets Acquired                 1,112,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
0us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
 
Intangible Assets, Gross Ending Balance 8,165,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
      7,129,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
      8,165,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
7,129,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
 
Accumulated Amortization of Intangible Assets- Beginning Balance       (6,932,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
      (5,662,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
(6,932,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
(5,662,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
 
Amortization of Intangible Assets                 (467,000)us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
(1,270,000)us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
 
Accumulated Amortization of Intangible Assets- Ending Balance (7,399,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
      (6,932,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
      (7,399,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
(6,932,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerContractsMember
 
Weighted Average Remaining Contractual Life, in Years                 1 year 7 months 2 days    
Client Relationships [Member]                      
Finite-lived Intangible Assets [Roll Forward]                      
Intangible Assets, Gross Beginning Balance       12,007,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
      1,730,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
12,007,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
1,730,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
 
Finite-Lived Intangible Assets, Translation Adjustments                 (1,238,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
(14,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
 
Finite-lived Intangible Assets Acquired                 2,287,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
10,291,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
 
Intangible Assets, Gross Ending Balance 13,056,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
      12,007,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
      13,056,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
12,007,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
 
Accumulated Amortization of Intangible Assets- Beginning Balance       (928,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
      (758,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
(928,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
(758,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
 
Amortization of Intangible Assets                 (655,000)us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
(170,000)us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
 
Accumulated Amortization of Intangible Assets- Ending Balance (1,583,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
      (928,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
      (1,583,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
(928,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
 
Weighted Average Remaining Contractual Life, in Years                 17 years 6 months    
Trade Names and Trademarks [Member]                      
Finite-lived Intangible Assets [Roll Forward]                      
Intangible Assets, Gross Beginning Balance       5,326,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
      0us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
5,326,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
0us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
 
Finite-Lived Intangible Assets, Translation Adjustments                 (542,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
0us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
 
Finite-lived Intangible Assets Acquired                 364,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
5,326,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
 
Intangible Assets, Gross Ending Balance 5,148,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
      5,326,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
      5,148,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
5,326,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
 
Accumulated Amortization of Intangible Assets- Beginning Balance       0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
      0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
 
Amortization of Intangible Assets                 (323,000)us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
0us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
 
Accumulated Amortization of Intangible Assets- Ending Balance (323,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
      0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
      (323,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
 
Weighted Average Remaining Contractual Life, in Years                 14 years 10 months 19 days    
Internally developed software [Member]                      
Finite-lived Intangible Assets [Roll Forward]                      
Intangible Assets, Gross Beginning Balance       1,339,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
      0us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
1,339,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
0us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
 
Finite-Lived Intangible Assets, Translation Adjustments                 (160,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
0us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
 
Finite-lived Intangible Assets Acquired                 0us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
1,339,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
 
Intangible Assets, Gross Ending Balance 1,179,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
      1,339,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
      1,179,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
1,339,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
 
Accumulated Amortization of Intangible Assets- Beginning Balance       0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
      0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
 
Amortization of Intangible Assets                 (244,000)us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
0us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
 
Accumulated Amortization of Intangible Assets- Ending Balance (244,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
      0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
      (244,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
0us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_SoftwareDevelopmentMember
 
Weighted Average Remaining Contractual Life, in Years                 3 years 9 months 13 days    
Licenses [Member]                      
Finite-lived Intangible Assets [Roll Forward]                      
Intangible Assets, Gross Beginning Balance       827,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
      833,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
827,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
833,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
 
Finite-Lived Intangible Assets, Translation Adjustments                 (69,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
(6,000)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
 
Finite-lived Intangible Assets Acquired                 0us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
0us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
 
Intangible Assets, Gross Ending Balance 758,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
      827,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
      758,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
827,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
 
Accumulated Amortization of Intangible Assets- Beginning Balance       (469,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
      (388,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
(469,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
(388,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
 
Amortization of Intangible Assets                 (73,000)us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
(81,000)us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
 
Accumulated Amortization of Intangible Assets- Ending Balance (542,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
      (469,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
      (542,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
(469,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
 
Weighted Average Remaining Contractual Life, in Years                 3 years    
Bristow Academy [Member]                      
Goodwill [Roll Forward]                      
Reporting unit, percentage of fair value in excess of carrying amount 18.30%us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount
/ us-gaap_SubsegmentsConsolidationItemsAxis
= brs_BristowAcademyMember
              18.30%us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount
/ us-gaap_SubsegmentsConsolidationItemsAxis
= brs_BristowAcademyMember
   
Europe [Member]                      
Goodwill [Roll Forward]                      
Goodwill, beginning balance       40,201,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember
      11,883,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember
40,201,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember
11,883,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember
 
Goodwill, translation adjustments                 (4,500,000)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember
1,839,000us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember
 
Goodwill, acquired during period                 0us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember
26,479,000us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember
 
Goodwill, impairment loss                   0us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember
 
Goodwill, ending balance 35,701,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember
      40,201,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember
      35,701,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember
40,201,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_EuropeMember
 
Bristow Academy [Member]                      
Goodwill [Roll Forward]                      
Goodwill, beginning balance       10,302,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_BristowAcademyMember
      10,212,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_BristowAcademyMember
10,302,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_BristowAcademyMember
10,212,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_BristowAcademyMember
 
Goodwill, translation adjustments                 (112,000)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= brs_BristowAcademyMember
90,000us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= brs_BristowAcademyMember
 
Goodwill, acquired during period                 0us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= brs_BristowAcademyMember
0us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= brs_BristowAcademyMember
 
Goodwill, impairment loss                   0us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= brs_BristowAcademyMember
 
Goodwill, ending balance 10,190,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_BristowAcademyMember
      10,302,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_BristowAcademyMember
      10,190,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_BristowAcademyMember
10,302,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_BristowAcademyMember
 
Australia [Member]                      
Goodwill [Roll Forward]                      
Goodwill, beginning balance       0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= country_AU
      0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= country_AU
0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= country_AU
0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= country_AU
 
Goodwill, translation adjustments                 (461,000)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= country_AU
0us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= country_AU
 
Goodwill, acquired during period                 24,252,000us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= country_AU
0us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= country_AU
 
Goodwill, impairment loss                   0us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= country_AU
 
Goodwill, ending balance 23,791,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= country_AU
      0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= country_AU
      23,791,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= country_AU
0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= country_AU
 
West Africa [Member]                      
Goodwill [Roll Forward]                      
Goodwill, beginning balance       6,177,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_WestAfricaMember
      6,226,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_WestAfricaMember
6,177,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_WestAfricaMember
6,226,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_WestAfricaMember
 
Goodwill, translation adjustments                 (231,000)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= brs_WestAfricaMember
(49,000)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= brs_WestAfricaMember
 
Goodwill, acquired during period                 0us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= brs_WestAfricaMember
0us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= brs_WestAfricaMember
 
Goodwill, impairment loss                   0us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= brs_WestAfricaMember
 
Goodwill, ending balance 5,946,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_WestAfricaMember
      6,177,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_WestAfricaMember
      5,946,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_WestAfricaMember
6,177,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_WestAfricaMember
 
Other International [Member]                      
Goodwill [Roll Forward]                      
Goodwill, beginning balance       0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_OtherInternationalMember
      576,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_OtherInternationalMember
0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_OtherInternationalMember
576,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_OtherInternationalMember
 
Goodwill, translation adjustments                 0us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= brs_OtherInternationalMember
0us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= brs_OtherInternationalMember
 
Goodwill, acquired during period                 0us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= brs_OtherInternationalMember
0us-gaap_GoodwillAcquiredDuringPeriod
/ us-gaap_StatementBusinessSegmentsAxis
= brs_OtherInternationalMember
 
Goodwill, impairment loss                   (576,000)us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= brs_OtherInternationalMember
 
Goodwill, ending balance 0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_OtherInternationalMember
      0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_OtherInternationalMember
      0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_OtherInternationalMember
0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= brs_OtherInternationalMember
 
Assets Held For Sale [Member]                      
Property, Plant and Equipment [Line Items]                      
Impairment charges on assets held for sale                 36,057,000us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
/ us-gaap_MajorPropertyClassAxis
= us-gaap_AssetsHeldForSaleMember
6,814,000us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
/ us-gaap_MajorPropertyClassAxis
= us-gaap_AssetsHeldForSaleMember
4,362,000us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
/ us-gaap_MajorPropertyClassAxis
= us-gaap_AssetsHeldForSaleMember
Aircraft [Member]                      
Valuation and Qualifying Accounts Disclosure [Line Items]                      
Gain (loss) on disposal of assets                 208,000us-gaap_GainLossOnSaleOfPropertyPlantEquipment
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_AirTransportationEquipmentMember
6,092,000us-gaap_GainLossOnSaleOfPropertyPlantEquipment
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_AirTransportationEquipmentMember
3,708,000us-gaap_GainLossOnSaleOfPropertyPlantEquipment
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_AirTransportationEquipmentMember
Maximum [Member] | Aircraft [Member]                      
Property, Plant and Equipment [Line Items]                      
Property Plant And Equipment Useful Life                 15 years    
Property, Plant and Equipment salvage value percentage 50.00%us-gaap_PropertyPlantAndEquipmentSalvageValuePercentage
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_AirTransportationEquipmentMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
              50.00%us-gaap_PropertyPlantAndEquipmentSalvageValuePercentage
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_AirTransportationEquipmentMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
   
Maximum [Member] | Building [Member]                      
Property, Plant and Equipment [Line Items]                      
Property Plant And Equipment Useful Life                 40 years    
Maximum [Member] | Other Depreciable Assets [Member]                      
Property, Plant and Equipment [Line Items]                      
Property Plant And Equipment Useful Life                 15 years    
Minimum [Member] | Aircraft [Member]                      
Property, Plant and Equipment [Line Items]                      
Property Plant And Equipment Useful Life                 5 years    
Property, Plant and Equipment salvage value percentage 30.00%us-gaap_PropertyPlantAndEquipmentSalvageValuePercentage
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_AirTransportationEquipmentMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
              30.00%us-gaap_PropertyPlantAndEquipmentSalvageValuePercentage
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_AirTransportationEquipmentMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
   
Minimum [Member] | Building [Member]                      
Property, Plant and Equipment [Line Items]                      
Property Plant And Equipment Useful Life                 15 years    
Minimum [Member] | Other Depreciable Assets [Member]                      
Property, Plant and Equipment [Line Items]                      
Property Plant And Equipment Useful Life                 3 years    
Service Life [Member]                      
Property, Plant and Equipment [Line Items]                      
Change In Accounting Estimate, Depreciation Expense Reduction                 3,500,000brs_ChangeInAccountingEstimateDepreciationExpenseReduction
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ServiceLifeMember
   
Change In Accounting Estimate, Diluted Earnings Per Share Effect                 $ 0.08brs_ChangeInAccountingEstimateDilutedEarningsPerShareEffect
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ServiceLifeMember
   
Damage from fire, explosion or other hazard [Member]                      
Valuation and Qualifying Accounts Disclosure [Line Items]                      
Gain (loss) on disposal of assets                 4,900,000us-gaap_GainLossOnSaleOfPropertyPlantEquipment
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_DamageFromFireExplosionOrOtherHazardMember
(11,100,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_DamageFromFireExplosionOrOtherHazardMember
 
Insurance Recoveries                 16,000,000us-gaap_InsuranceRecoveries
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_DamageFromFireExplosionOrOtherHazardMember
11,100,000us-gaap_InsuranceRecoveries
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_DamageFromFireExplosionOrOtherHazardMember
 
H225 Super Puma [Member]                      
Property, Plant and Equipment [Line Items]                      
Number of aircraft reclassed held for sale to property and equipment                     4brs_NumberOfAircraftReclassedHeldForSaleToPropertyAndEquipment
/ us-gaap_AircraftTypeAxis
= brs_H225SuperPumaMember
Gain from aircraft reclassed from held for sale to property and eqiupment                     8,700,000brs_GainFromAircraftReclassedFromHeldForSaleToPropertyAndEqiupment
/ us-gaap_AircraftTypeAxis
= brs_H225SuperPumaMember
ATP Oil And Gas Corporation [Member]                      
Valuation and Qualifying Accounts Disclosure [Line Items]                      
Provision for Doubtful Accounts                     4,900,000us-gaap_ProvisionForDoubtfulAccounts
/ us-gaap_MajorCustomersAxis
= brs_AtpOilAndGasCorporationMember
Allowance for Doubtful Accounts Receivable, Recoveries                 4,400,000us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries
/ us-gaap_MajorCustomersAxis
= brs_AtpOilAndGasCorporationMember
   
Allowance for Doubtful Accounts Receivable, Write-offs                 500,000us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs
/ us-gaap_MajorCustomersAxis
= brs_AtpOilAndGasCorporationMember
   
UK SAR [Member]                      
Valuation and Qualifying Accounts Disclosure [Line Items]                      
Deferred set-up costs, current 8,900,000us-gaap_DeferredSetUpCostsCurrent
/ us-gaap_MajorCustomersAxis
= brs_UkSarMember
      5,500,000us-gaap_DeferredSetUpCostsCurrent
/ us-gaap_MajorCustomersAxis
= brs_UkSarMember
      8,900,000us-gaap_DeferredSetUpCostsCurrent
/ us-gaap_MajorCustomersAxis
= brs_UkSarMember
5,500,000us-gaap_DeferredSetUpCostsCurrent
/ us-gaap_MajorCustomersAxis
= brs_UkSarMember
 
Amortization of other deferred charges                 2,600,000us-gaap_OtherAmortizationOfDeferredCharges
/ us-gaap_MajorCustomersAxis
= brs_UkSarMember
   
Allowance for doubtful accounts [Member]                      
Movement in Valuation Allowances and Reserves [Roll Forward]                      
Balance- beginning of fiscal year       5,074,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
      5,079,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
5,074,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
5,079,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
243,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
Additional allowances                 1,050,000us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
87,000us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
4,887,000us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
Write-offs                 (5,265,000)us-gaap_ValuationAllowancesAndReservesDeductions
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
(92,000)us-gaap_ValuationAllowancesAndReservesDeductions
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
(51,000)us-gaap_ValuationAllowancesAndReservesDeductions
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
Balance- end of fiscal year 859,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
      5,074,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
      859,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
5,074,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
5,079,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
Inventory valuation reserve [Member]                      
Movement in Valuation Allowances and Reserves [Roll Forward]                      
Balance- beginning of fiscal year       47,298,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
      31,504,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
47,298,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
31,504,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
34,364,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
Impairment of inventories                 7,167,000us-gaap_InventoryWriteDown
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
12,669,000us-gaap_InventoryWriteDown
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
0us-gaap_InventoryWriteDown
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
Additional allowances                 4,867,000us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
6,807,000us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
8,479,000us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
Write-offs                 (10,125,000)us-gaap_ValuationAllowancesAndReservesDeductions
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
(6,096,000)us-gaap_ValuationAllowancesAndReservesDeductions
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
(10,053,000)us-gaap_ValuationAllowancesAndReservesDeductions
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
Foreign currency effects                 (3,793,000)us-gaap_ValuationAllowancesAndReservesAdjustments
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
2,414,000us-gaap_ValuationAllowancesAndReservesAdjustments
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
(1,286,000)us-gaap_ValuationAllowancesAndReservesAdjustments
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
Balance- end of fiscal year $ 45,414,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
      $ 47,298,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
      $ 45,414,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
$ 47,298,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember
$ 31,504,000us-gaap_ValuationAllowancesAndReservesBalance
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_InventoryValuationReserveMember