CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 88,707	$ 187,779	$ 131,675
Other Comprehensive Income:
Currency translation adjustments	(71,617)	18,729	(11,982)
Pension liability adjustment, net of tax provision (benefit)	(36,978)	23,367	(28,462)
Total comprehensive income (loss)	(19,888)	229,875	91,231
Net income attributable to noncontrolling interests	(4,407)	(1,042)	(1,573)
Currency translation adjustment attributable to noncontrolling interest	(5,228)	1,081	0
Total comprehensive (income) loss attributable to noncontrolling interests	(9,635)	39	(1,573)
Total comprehensive income (loss) attributable to Bristow Group	$ (29,523)	$ 229,914	$ 89,658