v2.4.1.9

DIVIDENDS, SHARE REPURCHASES, EARNINGS PER SHARE AND ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Mar. 31, 2015	Nov. 06, 2014	Jan. 30, 2015
Dividends, Share Repurchases and Earnings Per Share [Line Items]
Cash dividends declared per common share	$ 0.32us-gaap_CommonStockDividendsPerShareDeclared	$ 0.25us-gaap_CommonStockDividendsPerShareDeclared	$ 0.96us-gaap_CommonStockDividendsPerShareDeclared	$ 0.75us-gaap_CommonStockDividendsPerShareDeclared
Payments for repurchase of common stock	$ 37,400,000us-gaap_PaymentsForRepurchaseOfCommonStock		$ 80,831,000us-gaap_PaymentsForRepurchaseOfCommonStock	$ 16,544,000us-gaap_PaymentsForRepurchaseOfCommonStock
Treasury Stock, Shares, Acquired	565,622us-gaap_TreasuryStockSharesAcquired		1,160,940us-gaap_TreasuryStockSharesAcquired
Stock Repurchase Program, Authorized Amount						150,000,000us-gaap_StockRepurchaseProgramAuthorizedAmount1
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Income available to common stockholders - basic	(968,000)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	18,927,000us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	69,223,000us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	156,419,000us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Interest expense on assumed conversion of 3% Convertible Notes, net of tax	0us-gaap_InterestOnConvertibleDebtNetOfTax	0us-gaap_InterestOnConvertibleDebtNetOfTax	0us-gaap_InterestOnConvertibleDebtNetOfTax	0us-gaap_InterestOnConvertibleDebtNetOfTax
Income available to common stockholders - diluted	(968,000)us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted	18,927,000us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted	69,223,000us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted	156,419,000us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted
Weighted average number of common shares outstanding - basic	35,039,875us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	36,477,191us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	35,332,925us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	36,175,207us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Assumed conversion of 3% Convertible Senior Noted outstanding during the period	0us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities
Net effect of dilutive stock options, restricted stock units and restricted stock awards based on the treasury stock method	248,727us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	292,603us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	324,194us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	398,750us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Weighted average number of common shares outstanding - diluted	35,288,602us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	36,769,794us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	35,657,119us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	36,573,957us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Basic earnings per share	$ (0.03)us-gaap_EarningsPerShareBasic	$ 0.52us-gaap_EarningsPerShareBasic	$ 1.96us-gaap_EarningsPerShareBasic	$ 4.32us-gaap_EarningsPerShareBasic
Diluted earnings per share	$ (0.03)us-gaap_EarningsPerShareDiluted	$ 0.51us-gaap_EarningsPerShareDiluted	$ 1.94us-gaap_EarningsPerShareDiluted	$ 4.28us-gaap_EarningsPerShareDiluted
Debt Instrument Convertible Terms Of Conversion Feature	the base conversion price of the notes was approximately $74.05, based on the base conversion rate of 13.5048 shares of Common Stock per $1,000 principal amount of convertible notes (subject to adjustment in certain circumstances, including the payment of dividends). In general, upon conversion of a note, the holder will receive cash equal to the principal amount of the note and Common Stock to the extent of the note’s conversion value in excess of such principal amount. In addition, if at the time of conversion the applicable price of our Common Stock exceeds the base conversion price, holders will receive up to an additional 8.7781 shares of our Common Stock per $1,000 principal amount of notes, as determined pursuant to a specified formula.
Debt Instrument, Convertible, Conversion Price	$ 73.07us-gaap_DebtInstrumentConvertibleConversionPrice1		$ 73.07us-gaap_DebtInstrumentConvertibleConversionPrice1
Per Principal Amount Of Convertible Debt			1,000brs_PerPrincipalAmountOfConvertibleDebt
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss) - Beginning Balance			(156,506,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			(28,276,000)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
Other Comprehensive Income (Loss), Net of Tax			(28,276,000)us-gaap_OtherComprehensiveIncomeLossNetOfTax
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	0us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax		0us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
Accumulated Other Comprehensive Income (Loss) - Ending Balance	(184,782,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax		(184,782,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss) - Beginning Balance			57,812,000us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			(28,276,000)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember
Other Comprehensive Income (Loss), Net of Tax			(28,276,000)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	(13,154,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember		(13,154,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember
Accumulated Other Comprehensive Income (Loss) - Ending Balance	16,382,000us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember		16,382,000us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss) - Beginning Balance			(214,318,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			0us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
Other Comprehensive Income (Loss), Net of Tax			0us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	13,154,000us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember		13,154,000us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
Accumulated Other Comprehensive Income (Loss) - Ending Balance	(201,164,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember		(201,164,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
Base Conversion [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Debt Instrument, Convertible, Conversion Ratio			13.6849us-gaap_DebtInstrumentConvertibleConversionRatio1 / us-gaap_DebtConversionByUniqueDescriptionAxis = brs_BaseConversionMember
Excess Conversion [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Debt Instrument, Convertible, Conversion Ratio			8.8952us-gaap_DebtInstrumentConvertibleConversionRatio1 / us-gaap_DebtConversionByUniqueDescriptionAxis = brs_ExcessConversionMember
Stock Options [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Outstanding	483,237us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember	576,178us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember	654,630us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember	530,965us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember
Stock Options [Member] | Quarter To Date [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Weighted average exercise price	$ 73.88us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember / brs_PeriodAxis = brs_QuarterToDateMember	$ 53.33us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember / brs_PeriodAxis = brs_QuarterToDateMember	$ 73.88us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember / brs_PeriodAxis = brs_QuarterToDateMember	$ 53.33us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember / brs_PeriodAxis = brs_QuarterToDateMember
Stock Options [Member] | Year To Date [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Weighted average exercise price	$ 68.78us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember / brs_PeriodAxis = brs_YearToDateMember	$ 51.78us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember / brs_PeriodAxis = brs_YearToDateMember	$ 68.78us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember / brs_PeriodAxis = brs_YearToDateMember	$ 51.78us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember / brs_PeriodAxis = brs_YearToDateMember
Restricted Stock Awards [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Outstanding	0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember	0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember	0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember	274us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember
Restricted Stock Awards [Member] | Quarter To Date [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Weighted average exercise price	$ 0.00us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember / brs_PeriodAxis = brs_QuarterToDateMember	$ 0.00us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember / brs_PeriodAxis = brs_QuarterToDateMember	$ 0.00us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember / brs_PeriodAxis = brs_QuarterToDateMember	$ 0.00us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember / brs_PeriodAxis = brs_QuarterToDateMember
Restricted Stock Awards [Member] | Year To Date [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Weighted average exercise price	$ 0.00us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember / brs_PeriodAxis = brs_YearToDateMember	$ 64.20us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember / brs_PeriodAxis = brs_YearToDateMember	$ 0.00us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember / brs_PeriodAxis = brs_YearToDateMember	$ 64.20us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember / brs_PeriodAxis = brs_YearToDateMember
Subsequent Event [Member]
Dividends, Share Repurchases and Earnings Per Share [Line Items]
Cash dividends declared per common share					$ 0.32us-gaap_CommonStockDividendsPerShareDeclared / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Stock Repurchase Program, Remaining Authorized Repurchase Amount							$ 125,000,000us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

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