CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Gross revenue:
Operating revenue from non-affiliates	$ 328,944	$ 305,789	$ 991,655	$ 969,779
Operating revenue from affiliates	16,584	18,564	51,594	54,420
Reimbursable revenue from non-affiliates	15,207	13,090	43,271	40,109
Total consolidated gross revenue	360,735	337,443	1,086,520	1,064,308
Operating expense:
Direct cost	271,864	260,343	842,128	831,516
Reimbursable expense	14,725	12,206	42,365	38,096
Depreciation and amortization	31,682	29,768	94,119	93,054
General and administrative	43,366	45,409	138,695	149,278
Operating expense	361,637	347,726	1,117,307	1,111,944
Loss on impairment	0	(8,706)	(1,192)	(16,278)
Loss on disposal of assets	(4,591)	(874)	(12,418)	(13,077)
Earnings from unconsolidated affiliates, net of losses	1,996	766	3,394	4,777
Operating loss	(3,497)	(19,097)	(41,003)	(72,214)
Interest expense, net	(19,093)	(12,179)	(53,677)	(34,533)
Other income (expense), net	(766)	1,668	147	(1,518)
Loss before benefit for income taxes	(23,356)	(29,608)	(94,533)	(108,265)
Benefit (provision) for income taxes	13,419	3,560	(2,546)	11,038
Net loss	(9,937)	(26,048)	(97,079)	(97,227)
Net loss attributable to noncontrolling interests	1,664	4,121	2,322	4,731
Net loss attributable to Bristow Group	$ (8,273)	$ (21,927)	$ (94,757)	$ (92,496)
Loss per common share:
Basic (in dollars per share)	$ (0.23)	$ (0.62)	$ (2.69)	$ (2.64)
Diluted (in dollars per share)	(0.23)	(0.62)	(2.69)	(2.64)
Cash dividends declared per common share (in dollars per share)	$ 0	$ 0.07	$ 0.07	$ 0.21