CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Gross revenue:
Operating revenue from non-affiliates	$ 1,259,529	$ 1,317,295	$ 1,276,374
Operating revenue from affiliates	48,378	56,142	59,056
Reimbursable revenue from non-affiliates	61,755	60,538	52,652
Total consolidated gross revenue	1,369,662	1,433,975	1,388,082
Operating expense:
Direct cost	1,079,747	1,123,287	1,103,087
Reimbursable expense	59,482	59,346	50,313
Depreciation and amortization	124,899	124,042	118,748
General and administrative	182,113	184,987	195,367
Total operating expense	1,446,241	1,491,662	1,467,515
Loss on impairment	(117,220)	(91,400)	(16,278)
Loss on disposal of assets	(27,843)	(17,595)	(14,499)
Earnings from unconsolidated affiliates, net of losses	4,317	18,699	20,339
Operating loss	(217,325)	(147,983)	(89,871)
Interest expense, net	(110,076)	(77,060)	(49,919)
Other expense, net	(8,898)	(2,957)	(3,538)
Loss before benefit (provision) for income taxes	(336,299)	(228,000)	(143,328)
Benefit (provision) for income taxes	161	30,891	(32,588)
Net loss	(336,138)	(197,109)	(175,916)
Net (income) loss attributable to noncontrolling interests	(709)	2,425	6,354
Net loss attributable to Bristow Group	$ (336,847)	$ (194,684)	$ (169,562)
Loss per common share:
Basic (in dollars per share)	$ (9.42)	$ (5.52)	$ (4.84)
Diluted (in dollar per share)	(9.42)	(5.52)	(4.84)
Cash dividends declared per common share	$ 0	$ 0.07	$ 0.28