UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net loss	$ (55,746)	$ (41,072)
Other comprehensive income:
Currency translation adjustments	9,760	(7,135)
Total comprehensive income (loss)	(45,986)	(48,207)
Net (income) loss attributable to noncontrolling interests	471	300
Currency translation adjustments attributable to noncontrolling interests	310	(4,442)
Total comprehensive (income) loss attributable to noncontrolling interests	781	(4,142)
Total comprehensive (income) loss attributable to Bristow Group	$ (45,205)	$ (52,349)