v2.4.1.9

STOCKHOLDERS' INVESTMENT, EARNINGS PER SHARE AND ACCUMULATED COMPREHENSIVE INCOME (Details) (USD $)	3 Months Ended												12 Months Ended			3 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, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	Jun. 30, 2015	Nov. 06, 2014	May 15, 2015
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Common Stock Shares reserved	4,133,008us-gaap_CommonStockCapitalSharesReservedForFutureIssuance												4,133,008us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Common stock, shares outstanding, beginning balance				35,708,469us-gaap_CommonStockSharesOutstanding				36,150,639us-gaap_CommonStockSharesOutstanding				35,755,317us-gaap_CommonStockSharesOutstanding	35,708,469us-gaap_CommonStockSharesOutstanding	36,150,639us-gaap_CommonStockSharesOutstanding	35,755,317us-gaap_CommonStockSharesOutstanding
Exercise of stock options													114,145us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised	433,608us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
Issuance of restricted stock and restricted stock units													176,609us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures	167,797us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
Repurchases of common stock, shares													(1,160,940)us-gaap_TreasuryStockSharesAcquired	(1,043,875)us-gaap_TreasuryStockSharesAcquired	(24,709)us-gaap_TreasuryStockSharesAcquired
Other Issuance of Common Stock													91us-gaap_StockIssuedDuringPeriodSharesOther	300us-gaap_StockIssuedDuringPeriodSharesOther
Common stock, shares outstanding, ending balance	34,838,374us-gaap_CommonStockSharesOutstanding				35,708,469us-gaap_CommonStockSharesOutstanding				36,150,639us-gaap_CommonStockSharesOutstanding				34,838,374us-gaap_CommonStockSharesOutstanding	35,708,469us-gaap_CommonStockSharesOutstanding	36,150,639us-gaap_CommonStockSharesOutstanding
Weighted average exercise price of options exercised													$ 45.31us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	$ 35.51us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
Weighted average price per share of issued restricted stock and restricted stock units													$ 73.73brs_WeightedAveragePricePerShareOfIssuedRestrictedStockAndRestrictedStockUnits	$ 67.27brs_WeightedAveragePricePerShareOfIssuedRestrictedStockAndRestrictedStockUnits
Weighted average price per share of treasury stock purchased	$ 69.63brs_WeightedAveragePricePerShareOfTreasuryStockPurchased				$ 74.40brs_WeightedAveragePricePerShareOfTreasuryStockPurchased								$ 69.63brs_WeightedAveragePricePerShareOfTreasuryStockPurchased	$ 74.40brs_WeightedAveragePricePerShareOfTreasuryStockPurchased
Weighted average price per share of other issuances	$ 67.47brs_WeightedAveragePricePerShareOfOtherIssuances				$ 65.90brs_WeightedAveragePricePerShareOfOtherIssuances								$ 67.47brs_WeightedAveragePricePerShareOfOtherIssuances	$ 65.90brs_WeightedAveragePricePerShareOfOtherIssuances
Percentage of stock owned by U.S. citizens requirement													75.00%brs_PercentageOfStockOwnedByUsCitizensRequirement
Percentage of stock owned by other than U.S. citizens requirement													25.00%brs_PercentageOfStockOwnedByOtherThanUsCitizensRequirement
Common shares owned by foreign addresses	2,752,000brs_CommonSharesOwnedByForeignAddresses												2,752,000brs_CommonSharesOwnedByForeignAddresses
Percentage of total outstanding common shares owned by foreign addresses													8.00%brs_PercentageOfTotalOutstandingCommonSharesOwnedByForeignAddresses
Cash dividends declared per common share	$ 0.32us-gaap_CommonStockDividendsPerShareDeclared	$ 0.32us-gaap_CommonStockDividendsPerShareDeclared	$ 0.32us-gaap_CommonStockDividendsPerShareDeclared	$ 0.32us-gaap_CommonStockDividendsPerShareDeclared	$ 0.25us-gaap_CommonStockDividendsPerShareDeclared	$ 0.25us-gaap_CommonStockDividendsPerShareDeclared	$ 0.25us-gaap_CommonStockDividendsPerShareDeclared	$ 0.25us-gaap_CommonStockDividendsPerShareDeclared	$ 0.20us-gaap_CommonStockDividendsPerShareDeclared	$ 0.2us-gaap_CommonStockDividendsPerShareDeclared	$ 0.2us-gaap_CommonStockDividendsPerShareDeclared	$ 0.2us-gaap_CommonStockDividendsPerShareDeclared	$ 1.28us-gaap_CommonStockDividendsPerShareDeclared	$ 1us-gaap_CommonStockDividendsPerShareDeclared	$ 0.8us-gaap_CommonStockDividendsPerShareDeclared
Repurchases of common stock, shares													1,160,940us-gaap_TreasuryStockSharesAcquired	1,043,875us-gaap_TreasuryStockSharesAcquired	24,709us-gaap_TreasuryStockSharesAcquired
Dividends paid													$ 45,078,000us-gaap_PaymentsOfDividends	$ 36,320,000us-gaap_PaymentsOfDividends	$ 28,734,000us-gaap_PaymentsOfDividends
Stock repurchase authorized amount																	150,000,000us-gaap_StockRepurchaseProgramAuthorizedAmount1
Repurchase of common stock													80,831,000us-gaap_PaymentsForRepurchaseOfCommonStock	77,661,000us-gaap_PaymentsForRepurchaseOfCommonStock	1,219,000us-gaap_PaymentsForRepurchaseOfCommonStock
Net Income (Loss) Available to Common Stockholders, Basic													84,300,000us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	186,737,000us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic	130,102,000us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Interest expense on assumed conversion of 3% Convertible Notes, net of tax													0us-gaap_InterestOnConvertibleDebtNetOfTax	0us-gaap_InterestOnConvertibleDebtNetOfTax	0us-gaap_InterestOnConvertibleDebtNetOfTax
Income available to common stockholders - diluted													84,300,000us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted	186,737,000us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted	130,102,000us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted
Weighted average number of common shares outstanding - basic													35,193,480us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	36,283,853us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	36,010,191us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Assumed conversion of 3% Convertible Senior Noted outstanding during the period													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													335,125us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	412,911us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	479,821us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Weighted average number of common shares outstanding - diluted													35,528,605us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	36,696,764us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	36,490,012us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Basic earnings per share	$ 0.43us-gaap_EarningsPerShareBasic	$ (0.03)us-gaap_EarningsPerShareBasic	$ 0.74us-gaap_EarningsPerShareBasic	$ 1.24us-gaap_EarningsPerShareBasic	$ 0.84us-gaap_EarningsPerShareBasic	$ 0.52us-gaap_EarningsPerShareBasic	$ 3.04us-gaap_EarningsPerShareBasic	$ 0.74us-gaap_EarningsPerShareBasic					$ 2.40us-gaap_EarningsPerShareBasic	$ 5.15us-gaap_EarningsPerShareBasic	$ 3.61us-gaap_EarningsPerShareBasic
Diluted earnings per share	$ 0.43us-gaap_EarningsPerShareDiluted	$ (0.03)us-gaap_EarningsPerShareDiluted	$ 0.73us-gaap_EarningsPerShareDiluted	$ 1.23us-gaap_EarningsPerShareDiluted	$ 0.83us-gaap_EarningsPerShareDiluted	$ 0.51us-gaap_EarningsPerShareDiluted	$ 3.01us-gaap_EarningsPerShareDiluted	$ 0.74us-gaap_EarningsPerShareDiluted					$ 2.37us-gaap_EarningsPerShareDiluted	$ 5.09us-gaap_EarningsPerShareDiluted	$ 3.57us-gaap_EarningsPerShareDiluted
Per Principal Amount Of Convertible Debt													1,000brs_PerPrincipalAmountOfConvertibleDebt
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax Beginning Balance				(156,506,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax				(199,683,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax				(159,239,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax	(156,506,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax	(199,683,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax	(159,239,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax													(119,146,000)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	36,873,000us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	(45,400,000)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax													5,323,000us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	6,304,000us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	4,956,000us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
Other comprehensive income													(113,823,000)us-gaap_OtherComprehensiveIncomeLossNetOfTax	43,177,000us-gaap_OtherComprehensiveIncomeLossNetOfTax	(40,444,000)us-gaap_OtherComprehensiveIncomeLossNetOfTax
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	0us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax				0us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax				0us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax				0us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	0us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	0us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
Accumulated Other Comprehensive Income (Loss), Net of Tax Ending Balance	(270,329,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax				(156,506,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax				(199,683,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax				(270,329,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax	(156,506,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax	(199,683,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Currency translation adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax Beginning Balance				57,812,000us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember				14,689,000us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember				30,350,000us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember	57,812,000us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember	14,689,000us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember	30,350,000us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax													(76,845,000)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember	19,810,000us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember	(11,982,000)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	0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember	0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember
Other comprehensive income													(76,845,000)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember	19,810,000us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember	(11,982,000)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	(20,033,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember				23,313,000us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember				(3,679,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember				(20,033,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember	23,313,000us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember	(3,679,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember
Accumulated Other Comprehensive Income (Loss), Net of Tax Ending Balance	(39,066,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember				57,812,000us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember				14,689,000us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember				(39,066,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember	57,812,000us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember	14,689,000us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedTranslationAdjustmentMember
Pension liability adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax Beginning Balance				(214,318,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember				(214,372,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember				(189,589,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember	(214,318,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember	(214,372,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember	(189,589,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax													(42,301,000)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember	17,063,000us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember	(33,418,000)us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax													5,323,000us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember	6,304,000us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember	4,956,000us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
Other comprehensive income													(36,978,000)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember	23,367,000us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember	(28,462,000)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	20,033,000us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember				(23,313,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember				3,679,000us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember				20,033,000us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember	(23,313,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember	3,679,000us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
Accumulated Other Comprehensive Income (Loss), Net of Tax Ending Balance	(231,263,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember				(214,318,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember				(214,372,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember				(231,263,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember	(214,318,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember	(214,372,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
Subsequent Event [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Cash dividends declared per common share																$ 0.34us-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
Stock Options [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Outstanding													682,800us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember	297,595us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember	469,289us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember
Weighted average exercise price	$ 69.04us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember				$ 43.59us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember				$ 43.88us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember				$ 69.04us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember	$ 43.59us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember	$ 43.88us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember
Restricted Stock Awards [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Outstanding													0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember	7,416us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember	171us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = brs_RestrictedStockAwardsMember
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