UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (45,680)	$ 27,825	$ (47,309)	$ 72,828
Other comprehensive income:
Currency translation adjustments	(16,950)	(19,507)	(4,342)	(10,516)
Total comprehensive income (loss)	(62,630)	8,318	(51,651)	62,312
Net income attributable to noncontrolling interests	(1,452)	(1,743)	(3,080)	(2,637)
Currency translation adjustments attributable to noncontrolling interests	(1,535)	(183)	571	34
Total comprehensive income attributable to noncontrolling interests	(2,987)	(1,926)	(2,509)	(2,603)
Total comprehensive income (loss) attributable to Bristow Group	(65,617)	6,392	(54,160)	59,709
Accretion of redeemable noncontrolling interests	(4,803)	0	1,498	0
Total comprehensive income (loss) attributable to common stockholders	$ (60,814)	$ 6,392	$ (55,658)	$ 59,709