v2.4.1.9

SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION IS (Details) (USD $) In Thousands, unless otherwise specified | 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 | Mar. 31, 2014 | Mar. 31, 2013
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue | $ 450,355 us-gaap_Revenues | $ 460,140 us-gaap_Revenues | $ 475,636 us-gaap_Revenues | $ 472,538 us-gaap_Revenues | $ 440,925 us-gaap_Revenues | $ 412,335 us-gaap_Revenues | $ 417,328 us-gaap_Revenues | $ 398,994 us-gaap_Revenues | $ 1,858,669 us-gaap_Revenues | $ 1,669,582 us-gaap_Revenues | $ 1,508,473 us-gaap_Revenues
Direct cost and reimbursable expense |  |  |  |  |  |  |  |  | 1,299,557 brs_DirectCostAndReimbursableExpense | 1,186,132 brs_DirectCostAndReimbursableExpense | 1,057,794 brs_DirectCostAndReimbursableExpense
Intercompany expenses |  |  |  |  |  |  |  |  | 0 brs_IntercompanyExpenses | 0 brs_IntercompanyExpenses | 0 brs_IntercompanyExpenses
Impairment of inventories |  |  |  |  |  |  |  |  | 7,167 us-gaap_InventoryWriteDown | 12,669 us-gaap_InventoryWriteDown | 0 us-gaap_InventoryWriteDown
Depreciation and amortization |  |  |  |  |  |  |  |  | 114,293 us-gaap_DepreciationDepletionAndAmortization | 95,977 us-gaap_DepreciationDepletionAndAmortization | 96,284 us-gaap_DepreciationDepletionAndAmortization
General and administrative |  |  |  |  |  |  |  |  | 254,158 us-gaap_SellingGeneralAndAdministrativeExpense | 199,814 us-gaap_SellingGeneralAndAdministrativeExpense | 163,389 us-gaap_SellingGeneralAndAdministrativeExpense
Total operating expense |  |  |  |  |  |  |  |  | 1,675,175 us-gaap_OperatingExpenses | 1,494,592 us-gaap_OperatingExpenses | 1,317,467 us-gaap_OperatingExpenses
Gain (loss) on disposal of assets | (10,300)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (26,300)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | 100 us-gaap_GainLossOnSaleOfPropertyPlantEquipment | 600 us-gaap_GainLossOnSaleOfPropertyPlantEquipment | 100 us-gaap_GainLossOnSaleOfPropertyPlantEquipment | 4,000 us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (3,100)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (1,700)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (35,849)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (722)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | 8,068 us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Earnings from unconsolidated affiliates, net of losses |  |  |  |  |  |  |  |  | (1,771)brs_EarningsFromUnconsolidatedAffiliates | 12,709 brs_EarningsFromUnconsolidatedAffiliates | 25,070 brs_EarningsFromUnconsolidatedAffiliates
Operating income | 27,702 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment | 8,916 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment | 44,064 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment | 65,192 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment | 47,421 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment | 29,502 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment | 53,935 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment | 56,119 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment | 145,874 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment | 186,977 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment | 224,144 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment
Interest expense, net |  |  |  |  |  |  |  |  | (29,354)us-gaap_InterestIncomeExpenseNet | (43,218)us-gaap_InterestIncomeExpenseNet | (41,658)us-gaap_InterestIncomeExpenseNet
Extinguishment of debt |  |  |  |  |  |  |  |  | (2,591)us-gaap_GainsLossesOnExtinguishmentOfDebt | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt | (14,932)us-gaap_GainsLossesOnExtinguishmentOfDebt
Gain on sale of unconsolidated affiliate, net of losses |  |  |  |  |  |  |  |  | 3,921 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal | 103,924 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal
Other income (expense), net |  |  |  |  |  |  |  |  | (6,377)us-gaap_OtherNonoperatingIncome | (2,692)us-gaap_OtherNonoperatingIncome | (877)us-gaap_OtherNonoperatingIncome
Income before provision for income taxes |  |  |  |  |  |  |  |  | 111,473 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 244,991 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 166,677 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Provision for income taxes |  |  |  |  |  |  |  |  | (22,766)us-gaap_IncomeTaxExpenseBenefit | (57,212)us-gaap_IncomeTaxExpenseBenefit | (35,002)us-gaap_IncomeTaxExpenseBenefit
Net income |  |  |  |  |  |  |  |  | 88,707 us-gaap_ProfitLoss | 187,779 us-gaap_ProfitLoss | 131,675 us-gaap_ProfitLoss
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | (4,407)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (1,042)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (1,573)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Net income attributable to Bristow Group | 15,077 us-gaap_NetIncomeLoss | (968)us-gaap_NetIncomeLoss | 26,082 us-gaap_NetIncomeLoss | 44,109 us-gaap_NetIncomeLoss | 30,318 us-gaap_NetIncomeLoss | 18,927 us-gaap_NetIncomeLoss | 110,606 us-gaap_NetIncomeLoss | 26,886 us-gaap_NetIncomeLoss | 84,300 us-gaap_NetIncomeLoss | 186,737 us-gaap_NetIncomeLoss | 130,102 us-gaap_NetIncomeLoss
External Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue |  |  |  |  |  |  |  |  | 1,858,669 us-gaap_Revenues / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 1,669,582 us-gaap_Revenues / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 1,508,473 us-gaap_Revenues / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember
Intercompany Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue |  |  |  |  |  |  |  |  | 0 us-gaap_Revenues / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | 0 us-gaap_Revenues / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | 0 us-gaap_Revenues / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember
Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue |  |  |  |  |  |  |  |  | 767 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 14,754 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 12,537 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Direct cost and reimbursable expense |  |  |  |  |  |  |  |  | 0 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Intercompany expenses |  |  |  |  |  |  |  |  | 0 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Impairment of inventories |  |  |  |  |  |  |  |  | 0 us-gaap_InventoryWriteDown / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_InventoryWriteDown / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Depreciation and amortization |  |  |  |  |  |  |  |  | 1,834 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,835 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 4,588 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
General and administrative |  |  |  |  |  |  |  |  | 76,453 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 64,891 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 52,968 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Total operating expense |  |  |  |  |  |  |  |  | 78,287 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 67,726 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 57,556 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Gain (loss) on disposal of assets |  |  |  |  |  |  |  |  | 0 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (45)us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Earnings from unconsolidated affiliates, net of losses |  |  |  |  |  |  |  |  | 44,731 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 189,209 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 123,586 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Operating income |  |  |  |  |  |  |  |  | (32,789)brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 136,192 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 78,567 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Interest expense, net |  |  |  |  |  |  |  |  | 112,336 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 79,972 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 70,432 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Extinguishment of debt |  |  |  |  |  |  |  |  | (2,591)us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | (14,932)us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Gain on sale of unconsolidated affiliate, net of losses |  |  |  |  |  |  |  |  | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Other income (expense), net |  |  |  |  |  |  |  |  | 323 us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (174)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 94 us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Income before provision for income taxes |  |  |  |  |  |  |  |  | 77,279 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 215,990 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 134,161 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Provision for income taxes |  |  |  |  |  |  |  |  | 7,080 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (29,193)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (3,996)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net income |  |  |  |  |  |  |  |  | 84,359 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 186,797 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 130,165 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | (59)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (60)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (63)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net income attributable to Bristow Group |  |  |  |  |  |  |  |  | 84,300 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 186,737 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 130,102 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Parent Company [Member] | External Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue |  |  |  |  |  |  |  |  | 0 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 0 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 0 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember
Parent Company [Member] | Intercompany Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue |  |  |  |  |  |  |  |  | 767 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | 14,754 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | 12,537 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember
Guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue |  |  |  |  |  |  |  |  | 391,647 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 382,454 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 367,356 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Direct cost and reimbursable expense |  |  |  |  |  |  |  |  | 212,216 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 219,873 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 208,995 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Intercompany expenses |  |  |  |  |  |  |  |  | 0 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Impairment of inventories |  |  |  |  |  |  |  |  | 0 us-gaap_InventoryWriteDown / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 6,988 us-gaap_InventoryWriteDown / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Depreciation and amortization |  |  |  |  |  |  |  |  | 46,098 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 43,052 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 38,851 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
General and administrative |  |  |  |  |  |  |  |  | 39,898 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 33,925 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 29,252 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Total operating expense |  |  |  |  |  |  |  |  | 298,212 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 303,838 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 277,098 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Gain (loss) on disposal of assets |  |  |  |  |  |  |  |  | 269 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 4,312 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 2,474 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Earnings from unconsolidated affiliates, net of losses |  |  |  |  |  |  |  |  | 0 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Operating income |  |  |  |  |  |  |  |  | 93,704 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 82,928 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 92,732 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Interest expense, net |  |  |  |  |  |  |  |  | (4,581)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (4,785)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 17 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Extinguishment of debt |  |  |  |  |  |  |  |  | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |  | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Gain on sale of unconsolidated affiliate, net of losses |  |  |  |  |  |  |  |  | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember |
Other income (expense), net |  |  |  |  |  |  |  |  | 483 us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (342)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 103 us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Income before provision for income taxes |  |  |  |  |  |  |  |  | 89,606 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 77,801 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 92,852 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Provision for income taxes |  |  |  |  |  |  |  |  | (1,319)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (6,292)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (6,070)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Net income |  |  |  |  |  |  |  |  | 88,287 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 71,509 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 86,782 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Net income attributable to Bristow Group |  |  |  |  |  |  |  |  | 88,287 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 71,509 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 86,782 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Guarantor Subsidiaries [Member] | External Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue |  |  |  |  |  |  |  |  | 300,171 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 303,878 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 300,731 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember
Guarantor Subsidiaries [Member] | Intercompany Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue |  |  |  |  |  |  |  |  | 91,476 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | 78,576 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | 66,625 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember
Non-Guarantor Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue |  |  |  |  |  |  |  |  | 1,558,498 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,365,704 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,207,742 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Direct cost and reimbursable expense |  |  |  |  |  |  |  |  | 1,087,341 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 966,259 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 848,799 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Intercompany expenses |  |  |  |  |  |  |  |  | 92,243 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 93,330 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 79,162 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Impairment of inventories |  |  |  |  |  |  |  |  | 7,167 us-gaap_InventoryWriteDown / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 5,681 us-gaap_InventoryWriteDown / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Depreciation and amortization |  |  |  |  |  |  |  |  | 66,361 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 50,090 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 52,845 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
General and administrative |  |  |  |  |  |  |  |  | 137,807 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 100,998 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 81,169 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Total operating expense |  |  |  |  |  |  |  |  | 1,390,919 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,216,358 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,061,975 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Gain (loss) on disposal of assets |  |  |  |  |  |  |  |  | (36,118)us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (4,989)us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 5,594 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Earnings from unconsolidated affiliates, net of losses |  |  |  |  |  |  |  |  | (1,815)brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 12,666 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 25,070 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Operating income |  |  |  |  |  |  |  |  | 129,646 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 157,023 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 176,431 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Interest expense, net |  |  |  |  |  |  |  |  | (137,109)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (118,405)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (112,107)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Extinguishment of debt |  |  |  |  |  |  |  |  | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Gain on sale of unconsolidated affiliate, net of losses |  |  |  |  |  |  |  |  | 3,921 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 103,924 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Other income (expense), net |  |  |  |  |  |  |  |  | (7,183)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (2,176)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (1,074)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Income before provision for income taxes |  |  |  |  |  |  |  |  | (10,725)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 140,366 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 63,250 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Provision for income taxes |  |  |  |  |  |  |  |  | (28,527)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (21,727)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (24,936)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net income |  |  |  |  |  |  |  |  | (39,252)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 118,639 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 38,314 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | (4,348)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (982)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (1,510)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net income attributable to Bristow Group |  |  |  |  |  |  |  |  | (43,600)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 117,657 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 36,804 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Non-Guarantor Subsidiaries [Member] | External Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue |  |  |  |  |  |  |  |  | 1,558,498 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 1,365,704 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 1,207,742 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember
Non-Guarantor Subsidiaries [Member] | Intercompany Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue |  |  |  |  |  |  |  |  | 0 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | 0 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | 0 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember
Consolidations, Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue |  |  |  |  |  |  |  |  | (92,243)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (93,330)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (79,162)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Direct cost and reimbursable expense |  |  |  |  |  |  |  |  | 0 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Intercompany expenses |  |  |  |  |  |  |  |  | (92,243)brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (93,330)brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (79,162)brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Impairment of inventories |  |  |  |  |  |  |  |  | 0 us-gaap_InventoryWriteDown / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_InventoryWriteDown / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Depreciation and amortization |  |  |  |  |  |  |  |  | 0 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
General and administrative |  |  |  |  |  |  |  |  | 0 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Total operating expense |  |  |  |  |  |  |  |  | (92,243)us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (93,330)us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (79,162)us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Gain (loss) on disposal of assets |  |  |  |  |  |  |  |  | 0 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Earnings from unconsolidated affiliates, net of losses |  |  |  |  |  |  |  |  | (44,687)brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (189,166)brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (123,586)brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Operating income |  |  |  |  |  |  |  |  | (44,687)brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (189,166)brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (123,586)brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Interest expense, net |  |  |  |  |  |  |  |  | 0 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Extinguishment of debt |  |  |  |  |  |  |  |  | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Gain on sale of unconsolidated affiliate, net of losses |  |  |  |  |  |  |  |  | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |
Other income (expense), net |  |  |  |  |  |  |  |  | 0 us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Income before provision for income taxes |  |  |  |  |  |  |  |  | (44,687)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (189,166)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (123,586)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Provision for income taxes |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Net income |  |  |  |  |  |  |  |  | (44,687)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (189,166)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (123,586)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Net income attributable to Bristow Group |  |  |  |  |  |  |  |  | (44,687)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (189,166)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (123,586)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Consolidations, Eliminations [Member] | External Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue |  |  |  |  |  |  |  |  | 0 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 0 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 0 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember
Consolidations, Eliminations [Member] | Intercompany Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total consolidated gross revenue |  |  |  |  |  |  |  |  | $ (92,243)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | $ (93,330)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | $ (79,162)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember

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- Definition The net result for the period of deducting operating expense from operating revenue and then adding (deducting) gain (loss) on disposal of assets and earnings (losses) from unconsolidated affiliates. + References No definition available. + Details
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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629 + Details
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