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Total amount of consideration paid including related expenses to repurchase debt.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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The price per share of the conversion feature embedded in the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Fair value amount of debt instrument that was repurchased.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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DEBT (Details) (USD $)	12 Months Ended			0 Months Ended			276 Months Ended	12 Months Ended	0 Months Ended
DEBT (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	Nov. 22, 2010	Dec. 22, 2011	Oct. 12, 2012	Jun. 15, 2038	Mar. 31, 2012	Jun. 15, 2035	Jun. 15, 2030	Jun. 15, 2025	Jun. 15, 2020	Jun. 15, 2015	Apr. 29, 2013	Apr. 17, 2015
Debt Instrument [Line Items]
Total debt	$ 864,422,000	$ 841,302,000
Less short-term borrowings and current maturities of long-term debt	(18,730,000)us-gaap_LongTermDebtCurrent	(14,207,000)us-gaap_LongTermDebtCurrent
Total long-term debt	845,692,000us-gaap_LongTermDebtNoncurrent	827,095,000us-gaap_LongTermDebtNoncurrent
Extinguishment of debt	(2,591,000)	0	(14,932,000)
Write off of deferred debt issuance cost	660,000	12,733,000	4,642,000
Proceeds from borrowings	454,393,000us-gaap_ProceedsFromIssuanceOfDebt	533,064,000us-gaap_ProceedsFromIssuanceOfDebt	675,449,000us-gaap_ProceedsFromIssuanceOfDebt
Interest Paid	38,000,000us-gaap_InterestPaid	38,400,000us-gaap_InterestPaid	25,900,000us-gaap_InterestPaid
Capitalized Interest	14,600,000	14,100,000	6,600,000
Term Loan And Revolving Credit Facility [Abstract]
Percentage Of Domestic Capital Stock Guarantee	100.00%
Percentage Of Foreign Capital Stock Guarantee	65.00%
Conversion Feature [Abstract]
Per Principal Amount Of Convertible Debt	1,000brs_PerPrincipalAmountOfConvertibleDebt
Balances Of Debt And Equity Components [Abstract]
Debt component- unamortized discount	(1,300,000)
Long Term Convertible Debt Current And Noncurrent [Abstract]
Amortization of debt discount	4,323,000	3,708,000	3,597,000
Annual Maturities [Abstract]
Year 2016	18,730,000
Year 2017	30,945,000
Year 2018	26,480,000
Year 2019	35,994,000
Year 2020	228,755,000
Thereafter	524,853,000
Long-term Debt, Gross	865,757,000us-gaap_DebtInstrumentCarryingAmount
Excess Conversion [Member]
Conversion Feature [Abstract]
Per Principal Amount Of Convertible Debt	1,000
Term Loan And Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				375,000,000
Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				175,000,000
Debt Instrument, Term				5 years
Term Loan And Revolving Credit Facility [Abstract]
Debt Instrument, Term				5 years
Credit Facility [Member] \| First Amendment [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount					200,000,000
Credit Facility [Member] \| Third Amendment [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount														350,000,000
Credit Facility [Member] \| Fifth Amendment [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount															400,000,000
Letters Of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				30,000,000
Term Loan And Revolving Credit Facility [Abstract]
Letters of Credit Outstanding, Amount	500,000
Five Year Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				200,000,000
Debt Instrument, Term				5 years
Term Loan And Revolving Credit Facility [Abstract]
Debt Instrument, Term				5 years
Five Year Term Loan [Member] \| First Amendment [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount					250,000,000
Proceeds from borrowings					50,000,000
Term Loan And Revolving Credit Facility [Abstract]
Debt instrument balloon payment					133,800,000
Senior Notes [Member] \| Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Total debt	401,535,000	450,000,000
Debt Instrument, Interest Rate, Stated Percentage	6.25%
Debt Instrument Redemption Price Percentage Of Principal Amount May Redeemed Before First Call Date						0.35
Debt Instrument, Redemption Price, Percentage						106.25%
Debt Instrument, Original Principal Remaining Percentage, After First Call Redemption Before First Call Date						65.00%
Debt Instrument, Face Amount						450,000,000
Debt Issuance Costs						7,400,000
Debt Instrument, Repurchase Amount	48,500,000
Total consideration paid	52,000,000
Extinguishment of debt	(2,591,000)
Write off of deferred debt issuance cost	700,000
Senior Notes [Member] \| Senior Notes Due 2022 [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Redemption premium rate	103.75%
Senior Notes [Member] \| Senior Notes Due 2022 [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Redemption premium rate	107.75%
Term Loan [Member]
Debt Instrument [Line Items]
Total debt	222,179,000	226,604,000
Repayment of debt	4,500,000
Term Loan [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Total debt															222,600,000
Term Loan [Member] \| Fifth Amendment [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount															350,000,000
Convertible Senior Notes Due 2038 [Member]
Debt Instrument [Line Items]
Total debt	114,109,000	109,904,000
Debt Instrument, Interest Rate, Stated Percentage	3.00%
Debt Instrument, Redemption Price, Percentage							100.00%
Debt Instrument, Interest Rate, Effective Percentage	6.90%	6.90%	6.90%
Debt Instrument, Face Amount	115,000,000	115,000,000
Debt Instrument, Convertible, Conversion Price	$ 73.07
Conversion Feature [Abstract]
Debt Instrument, Convertible, Conversion Ratio	13.6849
Per Principal Amount Of Convertible Debt	1,000
Balances Of Debt And Equity Components [Abstract]
Equity component- net carrying value	14,905,000	14,905,000
Debt component- unamortized discount	(891,000)	(5,096,000)
Debt component- net carrying value	114,109,000	109,904,000
Long Term Convertible Debt Current And Noncurrent [Abstract]
Contractual coupon interest	3,450,000	3,450,000	3,450,000
Amortization of debt discount	4,205,000	3,708,000	3,597,000
Total interest expense	7,655,000	7,158,000	7,047,000
Convertible Senior Notes Due 2038 [Member] \| Excess Conversion [Member]
Conversion Feature [Abstract]
Debt Instrument, Convertible, Conversion Ratio	8.8952
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Total debt	83,800,000	24,000,000
Debt Instrument, Interest Rate, Effective Percentage	1.93%	1.91%
Proceeds from borrowings	453,000,000
Repayment of debt	393,200,000
Revolving Credit Facility [Member] \| Minimum [Member]
Term Loan And Revolving Credit Facility [Abstract]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage								0.25%
Margin rate								0.00%
Revolving Credit Facility [Member] \| Maximum [Member]
Term Loan And Revolving Credit Facility [Abstract]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage								0.50%
Margin rate								2.25%
Other Debt [Member]
Debt Instrument [Line Items]
Total debt	0	883,000
Debt Instrument, Interest Rate, Effective Percentage	11.50%
Proceeds from borrowings	1,200,000	1,100,000
Repayment of debt	2,000,000
Term Loans And Borrowings [Member] \| Airnorth Debt [Member]
Debt Instrument [Line Items]
Total debt	22,500,000
Commercial Paper [Member] \| Airnorth Debt [Member]
Debt Instrument [Line Items]
Total debt	600,000
Debt Instrument, Interest Rate, Stated Percentage	2.31%
Debt Instrument, Term	12 years
Term Loan And Revolving Credit Facility [Abstract]
Debt Instrument, Term	12 years
Airnorth [Member] \| Other Debt [Member]
Debt Instrument [Line Items]
Total debt	23,119,000	0
Airnorth [Member] \| Term Loans And Borrowings [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	2 years
Term Loan And Revolving Credit Facility [Abstract]
Debt Instrument, Term	2 years
Airnorth [Member] \| Term Loans And Borrowings [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	10 years
Term Loan And Revolving Credit Facility [Abstract]
Debt Instrument, Term	10 years
Airnorth [Member] \| Term Loans And Borrowings [Member] \| Term Loan 1 [Member]
Term Loan And Revolving Credit Facility [Abstract]
Margin rate	2.85%
Airnorth [Member] \| Term Loans And Borrowings [Member] \| Term Loan 1 [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	3.08%
Airnorth [Member] \| Term Loans And Borrowings [Member] \| Term Loan 2 [Member]
Term Loan And Revolving Credit Facility [Abstract]
Margin rate	3.10%
Airnorth [Member] \| Term Loans And Borrowings [Member] \| Term Loan 2 [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	5.60%
Eastern Airways \| Other Debt [Member]
Debt Instrument [Line Items]
Total debt	$ 19,680,000	$ 29,911,000
Eastern Airways \| Other Debt [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	3.225%
Debt Instrument, Term	2 years
Term Loan And Revolving Credit Facility [Abstract]
Debt Instrument, Term	2 years
Margin rate	2.75%
Eastern Airways \| Other Debt [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	3.975%
Debt Instrument, Term	10 years
Term Loan And Revolving Credit Facility [Abstract]
Debt Instrument, Term	10 years
Margin rate	3.50%
Scenario, Forecast [Member] \| Convertible Senior Notes Due 2038 [Member]
Conversion Feature [Abstract]
Debt Instrument, Convertible, Repurchase Price, Percentage Of Principal									100.00%	100.00%	100.00%	100.00%	100.00%