CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (32,041)	$ (55,746)
Other comprehensive loss:
Currency translation adjustments	(29,033)	9,760
Unrealized gain on cash flow hedges, net of tax benefit of $0.3 million and zero, respectively	1,348	0
Total comprehensive loss	(59,726)	(45,986)
Net (income) loss attributable to noncontrolling interests	(67)	471
Currency translation adjustments attributable to noncontrolling interests	(139)	310
Total comprehensive (income) loss attributable to noncontrolling interests	(206)	781
Total comprehensive loss attributable to Bristow Group	$ (59,932)	$ (45,205)