EMPLOYEE BENEFIT PLANS (SAP)	12 Months Ended
EMPLOYEE BENEFIT PLANS (SAP)	Mar. 31, 2014
Employee Benefit Plans Policy [Abstract]
Pension and Other Postretirement Plans, Policy [Policy Text Block]	The defined benefit pension plans of Bristow Helicopters and BIAGL replaced by the defined contribution plans described above covered all full-time employees of Bristow Aviation and BIAGL employed on or before December 31, 1997. Both plans were closed to future accrual from February 1, 2004. The defined benefits for employee members were based on the employee’s annualized average last three years’ pensionable salaries up to February 1, 2004, increasing thereafter in line with retail price inflation (prior to 2011) and consumer price inflation (from 2011 onwards), and subject to maximum increases of 5% per year over the period to retirement. Any valuation deficits are funded by contributions by Bristow Helicopters and BIAGL. Plan assets are held in separate funds administered by the plans’ trustee (the “Trustee”), which are primarily invested in equities and debt securities. For members of the two closed defined benefit pension plans, since January 2005, Bristow Helicopters contributes a maximum of 7% of a participant’s non-variable salary, and since April 2006, the maximum employer contribution into the plan has been 7.35% for pilots. Each member is required to contribute a minimum of 5% of non-variable salary for Bristow Helicopters to match the contribution. In addition, there are three defined contribution plans for staff who were not members of the original defined benefit plans, two of which are closed to new members. Bristow Norway has a final salary defined benefit pension plan. Pilots may retire from age 58 and other employees from age 62 (after meeting certain criteria). Bristow Norway also participates in the standard Norwegian Avtalefestet pension (contractual pension or “AFP”) early retirement system, which is only applicable for non-pilots due to the higher retirement age. The pension benefit is a percentage of final salary in excess of a deductible. The maximum pension is available to those with 30 or more years of service as of the date of retirement. Additionally, there are associated death and disability benefits. Plan assets are held in an insurance policy with an insurance company and contributions follow Norwegian rules, which are based on an individual actuarial calculation for each plan member. The following tables provide a rollforward of the projected benefit obligation and the fair value of plan assets, set forth the defined benefit retirement plans’ funded status and provide detail of the components of net periodic pension cost calculated for the U.K. and Norway pension plans. The measurement date adopted is March 31. For the purposes of amortizing gains and losses, the 10% corridor approach has been adopted and assets are taken at fair market value. Any such gains or losses are amortized over the average remaining life expectancy of the plan members.
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	We use a Black-Scholes option pricing model to estimate the fair value of share-based awards. The Black-Scholes option pricing model incorporates various assumptions, including the risk-free interest rate, volatility, dividend yield and the expected term of the options. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for a period equal to the expected term of the option. Expected volatilities are based on the historical volatility of shares of our Common Stock, which has not been adjusted for any expectation of future volatility given uncertainty related to the future performance of our Common Stock at this time. We also use historical data to estimate the expected term of the options within the option pricing model; groups of employees that have similar historical exercise behavior are considered separately for valuation purposes. The expected term of the options represents the period of time that the options granted are expected to be outstanding. Additionally, we estimate pre-vesting option forfeitures at the time of grant and periodically revise those estimates in subsequent periods if actual pre-vesting forfeitures differ from those estimates. We record stock-based compensation expense only for those awards expected to vest using an estimated forfeiture rate based on our historical forfeiture data.

Disclosure of accounting policy for pension and other postretirement benefit plans. This accounting policy may address (1) the types of plans sponsored by the entity, and the benefits provided by each plan (2) groups that participate in (or are covered by) each plan (3) how plan assets, liabilities and expenses are measured, including the use of any actuaries and (4) significant assumptions used by the entity to value plan assets and liabilities and how such assumptions are derived.

+ References+ Details