v2.4.1.9

SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION IS (Details) (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Total consolidated gross revenue | $ 460,140,000 us-gaap_Revenues | $ 412,335,000 us-gaap_Revenues | $ 1,408,314,000 us-gaap_Revenues | $ 1,228,657,000 us-gaap_Revenues
Direct cost and reimbursable expense | 327,779,000 brs_DirectCostAndReimbursableExpense | 298,267,000 brs_DirectCostAndReimbursableExpense | 993,116,000 brs_DirectCostAndReimbursableExpense | 883,346,000 brs_DirectCostAndReimbursableExpense
Intercompany expenses | 0 brs_IntercompanyExpenses | 0 brs_IntercompanyExpenses | 0 brs_IntercompanyExpenses | 0 brs_IntercompanyExpenses
Depreciation and amortization | 23,625,000 us-gaap_DepreciationDepletionAndAmortization | 23,655,000 us-gaap_DepreciationDepletionAndAmortization | 77,164,000 us-gaap_DepreciationDepletionAndAmortization | 70,332,000 us-gaap_DepreciationDepletionAndAmortization
General and administrative | 72,531,000 us-gaap_SellingGeneralAndAdministrativeExpense | 48,948,000 us-gaap_SellingGeneralAndAdministrativeExpense | 194,687,000 us-gaap_SellingGeneralAndAdministrativeExpense | 135,735,000 us-gaap_SellingGeneralAndAdministrativeExpense
Operating expense | 423,935,000 us-gaap_OperatingExpenses | 370,870,000 us-gaap_OperatingExpenses | 1,264,967,000 us-gaap_OperatingExpenses | 1,089,413,000 us-gaap_OperatingExpenses
Gain (loss) on disposal of assets | (26,331,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | 3,982,000 us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (25,594,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (803,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Earnings from unconsolidated affiliates, net of losses | (958,000)brs_EarningsFromUnconsolidatedAffiliates | (15,945,000)brs_EarningsFromUnconsolidatedAffiliates | 419,000 brs_EarningsFromUnconsolidatedAffiliates | 1,115,000 brs_EarningsFromUnconsolidatedAffiliates
Operating income | 8,916,000 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment | 29,502,000 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment | 118,172,000 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment | 139,556,000 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment
Interest expense, net | (6,976,000)us-gaap_InterestIncomeExpenseNet | (6,846,000)us-gaap_InterestIncomeExpenseNet | (21,675,000)us-gaap_InterestIncomeExpenseNet | (35,413,000)us-gaap_InterestIncomeExpenseNet
Gain on sale of unconsolidated affiliates | 3,921,000 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal | 3,921,000 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal | 103,924,000 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal
Other income (expense), net | (5,223,000)us-gaap_OtherNonoperatingIncome | (696,000)us-gaap_OtherNonoperatingIncome | (9,143,000)us-gaap_OtherNonoperatingIncome | (575,000)us-gaap_OtherNonoperatingIncome
Income before provision for income taxes | 638,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 21,960,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 91,275,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 207,492,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Provision for income taxes | (567,000)us-gaap_IncomeTaxExpenseBenefit | (2,946,000)us-gaap_IncomeTaxExpenseBenefit | (18,376,000)us-gaap_IncomeTaxExpenseBenefit | (51,682,000)us-gaap_IncomeTaxExpenseBenefit
Net income | 71,000 us-gaap_ProfitLoss | 19,014,000 us-gaap_ProfitLoss | 72,899,000 us-gaap_ProfitLoss | 155,810,000 us-gaap_ProfitLoss
Net income attributable to noncontrolling interests | (1,039,000)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (87,000)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (3,676,000)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | 609,000 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Net income (loss) attributable to Bristow Group | (968,000)us-gaap_NetIncomeLoss | 18,927,000 us-gaap_NetIncomeLoss | 69,223,000 us-gaap_NetIncomeLoss | 156,419,000 us-gaap_NetIncomeLoss
External Customer [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Total consolidated gross revenue | 460,140,000 us-gaap_Revenues / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 412,335,000 us-gaap_Revenues / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 1,408,314,000 us-gaap_Revenues / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 1,228,657,000 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 | 0 us-gaap_Revenues / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember
Parent Company [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Total consolidated gross revenue | 840,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 366,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 1,704,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 1,114,000 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 | 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 | 0 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Depreciation and amortization | (24,000)us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 698,000 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 1,254,000 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,151,000 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
General and administrative | 29,395,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 14,307,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 67,573,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 40,440,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Operating expense | 29,371,000 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 15,005,000 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 68,827,000 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 42,591,000 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Gain (loss) on disposal of assets | 0 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (45,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (45,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Earnings from unconsolidated affiliates, net of losses | (1,733,000)brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 1,733,000 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 51,251,000 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 171,641,000 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Operating income | (30,264,000)brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (12,951,000)brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (15,872,000)brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 130,119,000 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Interest expense, net | 26,048,000 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 25,771,000 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 82,058,000 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 55,276,000 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Gain on sale of unconsolidated affiliates | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Other income (expense), net | (625,000)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (38,000)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (2,469,000)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (156,000)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Income before provision for income taxes | (4,841,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 12,782,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 63,717,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 185,239,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Provision for income taxes | 3,889,000 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 6,159,000 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 5,549,000 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (28,775,000)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net income | (952,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 18,941,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 69,266,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 156,464,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net income attributable to noncontrolling interests | (16,000)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (14,000)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (43,000)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (45,000)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net income (loss) attributable to Bristow Group | (968,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 18,927,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 69,223,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 156,419,000 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 | 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 | 840,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | 366,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | 1,704,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | 1,114,000 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 | 99,105,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 98,549,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 298,470,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 295,582,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Direct cost and reimbursable expense | 58,459,000 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 57,490,000 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 168,412,000 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 172,477,000 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 | 0 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Depreciation and amortization | 9,637,000 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 10,708,000 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 31,738,000 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 32,439,000 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
General and administrative | 8,891,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 9,814,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 26,137,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 25,973,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Operating expense | 76,987,000 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 78,012,000 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 226,287,000 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 230,889,000 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Gain (loss) on disposal of assets | 4,878,000 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 1,930,000 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 7,416,000 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 391,000 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 | 0 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Operating income | 26,996,000 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 22,467,000 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 79,599,000 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 65,084,000 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Interest expense, net | (1,322,000)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (1,810,000)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (3,288,000)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (3,317,000)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Gain on sale of unconsolidated affiliates | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Other income (expense), net | (660,000)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (182,000)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (563,000)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (342,000)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Income before provision for income taxes | 25,014,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 20,475,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 75,748,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 61,425,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Provision for income taxes | 727,000 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (418,000)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (34,000)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | (2,786,000)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Net income | 25,741,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 20,057,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 75,714,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 58,639,000 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 | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Net income (loss) attributable to Bristow Group | 25,741,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 20,057,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 75,714,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember | 58,639,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember
Guarantor Subsidiaries [Member] | External Customer [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Total consolidated gross revenue | 78,026,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 74,092,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 227,378,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 229,253,000 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 | 21,079,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | 24,457,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | 71,092,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_GuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | 66,329,000 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 | 382,114,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 338,243,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,180,936,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 999,404,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Direct cost and reimbursable expense | 269,320,000 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 240,777,000 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 824,704,000 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 710,869,000 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Intercompany expenses | 21,919,000 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 24,823,000 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 72,796,000 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 67,443,000 brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Depreciation and amortization | 14,012,000 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 12,249,000 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 44,172,000 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 35,742,000 us-gaap_DepreciationDepletionAndAmortization / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
General and administrative | 34,245,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 24,827,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 100,977,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 69,322,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Operating expense | 339,496,000 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 302,676,000 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,042,649,000 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 883,376,000 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Gain (loss) on disposal of assets | (31,209,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 2,097,000 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (33,010,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (1,149,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Earnings from unconsolidated affiliates, net of losses | (1,000,000)brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (15,988,000)brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 377,000 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,072,000 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Operating income | 10,409,000 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 21,676,000 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 105,654,000 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 115,951,000 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Interest expense, net | (31,702,000)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (30,807,000)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (100,445,000)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (87,372,000)us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Gain on sale of unconsolidated affiliates | 3,921,000 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 3,921,000 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 103,924,000 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Other income (expense), net | (3,938,000)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (476,000)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (6,111,000)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (77,000)us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Income before provision for income taxes | (21,310,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (9,607,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 3,019,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 132,426,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Provision for income taxes | (5,183,000)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (8,687,000)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (23,891,000)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (20,121,000)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net income | (26,493,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (18,294,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (20,872,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 112,305,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net income attributable to noncontrolling interests | (1,023,000)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (73,000)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (3,633,000)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 654,000 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net income (loss) attributable to Bristow Group | (27,516,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (18,367,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (24,505,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 112,959,000 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 | 382,114,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 338,243,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 1,180,936,000 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember / us-gaap_MajorCustomersAxis = brs_ExternalCustomerMember | 999,404,000 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 | 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 | (21,919,000)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (24,823,000)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (72,796,000)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (67,443,000)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 | 0 brs_DirectCostAndReimbursableExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Intercompany expenses | (21,919,000)brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (24,823,000)brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (72,796,000)brs_IntercompanyExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (67,443,000)brs_IntercompanyExpenses / 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 | 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 | 0 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Operating expense | (21,919,000)us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (24,823,000)us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (72,796,000)us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (67,443,000)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 | 0 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Earnings from unconsolidated affiliates, net of losses | 1,775,000 brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (1,690,000)brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (51,209,000)brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (171,598,000)brs_EarningsFromUnconsolidatedAffiliates / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Operating income | 1,775,000 brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (1,690,000)brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (51,209,000)brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (171,598,000)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 | 0 us-gaap_InterestIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Gain on sale of unconsolidated affiliates | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 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 | 0 us-gaap_OtherNonoperatingIncome / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Income before provision for income taxes | 1,775,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (1,690,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (51,209,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (171,598,000)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 | 0 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Net income | 1,775,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (1,690,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (51,209,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (171,598,000)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 | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Net income (loss) attributable to Bristow Group | 1,775,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (1,690,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (51,209,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (171,598,000)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 | 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 | $ (21,919,000)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | $ (24,823,000)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | $ (72,796,000)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember | $ (67,443,000)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember / us-gaap_MajorCustomersAxis = brs_IntercompanyCustomerMember

X
- Definition Line item represents the aggregate direct operating costs and reimbursable expenses incurred during the reporting period. + References No definition available. + Details
Name: | brs_DirectCostAndReimbursableExpense
Namespace Prefix: | brs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Includes earnings accounted for under the equity method and dividends accounted for under the cost method from unconsolidated affiliates. + References No definition available. + Details
Name: | brs_EarningsFromUnconsolidatedAffiliates
Namespace Prefix: | brs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line item represents intercompany expenses that eliminates in consolidation. + References No definition available. + Details
Name: | brs_IntercompanyExpenses
Namespace Prefix: | brs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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
Name: | brs_OperatingIncomeLossIncludingIncomeLossFromUnconsolidatedAffiliatesAndGainLossFromSaleOfPropertyPlantAndEquipment
Namespace Prefix: | brs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_CondensedFinancialStatementsCaptionsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_DepreciationDepletionAndAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of gain (loss) on sale or disposal of an equity method investment. + References No definition available. + Details
Name: | us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. + 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
Name: | us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35710027&loc=d3e41242-110953 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 10 -Article 5 + Details
Name: | us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
Name: | us-gaap_IncomeTaxExpenseBenefit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The net amount of operating interest income (expense). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.10) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 10 -Article 9 + Details
Name: | us-gaap_InterestIncomeExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -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 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6519514 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=6518256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.19) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.18) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.22) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591551-111686 + Details
Name: | us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. + References No definition available. + Details
Name: | us-gaap_OperatingExpenses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate amount of other income amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income items. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 + Details
Name: | us-gaap_OtherNonoperatingIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591552-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591551-111686 + Details
Name: | us-gaap_ProfitLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 4 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34747878&loc=d3e3636-108311 + Details
Name: | us-gaap_SellingGeneralAndAdministrativeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=us-gaap_ConsolidationEliminationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=us-gaap_GuarantorSubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=us-gaap_NonGuarantorSubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=us-gaap_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorCustomersAxis=brs_ExternalCustomerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorCustomersAxis=brs_IntercompanyCustomerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |