CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Gross revenue:
Operating revenue from non-affiliates	$ 1,550,638,000	$ 1,639,263,000	$ 1,423,653,000
Operating revenue from affiliates	78,909,000	87,724,000	92,673,000
Reimbursable revenue from non-affiliates	85,966,000	131,682,000	153,180,000
Reimbursable revenue from affiliates	0	0	76,000
Total consolidated gross revenue	1,715,513,000	1,858,669,000	1,669,582,000
Operating expense:
Direct cost	1,227,541,000	1,174,991,000	1,041,575,000
Reimbursable expense	81,824,000	124,566,000	144,557,000
Depreciation and amortization	136,812,000	114,293,000	95,977,000
General and administrative	224,645,000	254,158,000	199,814,000
Total operating expense	1,670,822,000	1,668,008,000	1,481,923,000
Loss on impairment	(55,104,000)	(7,167,000)	(12,669,000)
Loss on disposal of assets	(30,693,000)	(35,849,000)	(722,000)
Earnings from unconsolidated affiliates, net of losses	261,000	(1,771,000)	12,709,000
Operating income (loss)	(40,845,000)	145,874,000	186,977,000
Interest expense, net	(34,128,000)	(29,354,000)	(43,218,000)
Extinguishment of debt	0	(2,591,000)	0
Gain on sale of unconsolidated affiliates	0	3,921,000	103,924,000
Other income (expense), net	(4,258,000)	(6,377,000)	(2,692,000)
Income (loss) before provision for income taxes	(79,231,000)	111,473,000	244,991,000
Benefit (provision) for income taxes	2,082,000	(22,766,000)	(57,212,000)
Net income (loss)	(77,149,000)	88,707,000	187,779,000
Net (income) loss attributable to noncontrolling interests	4,707,000	(4,407,000)	(1,042,000)
Net income (loss) attributable to Bristow Group	(72,442,000)	84,300,000	186,737,000
Accretion of redeemable noncontrolling interests	(1,498,000)	0	0
Net income (loss) available to common stockholders, basic	$ (73,940,000)	$ 84,300,000	$ 186,737,000
Earnings (loss) per common share:
Basic	$ (2.12)	$ 2.40	$ 5.15
Diluted	(2.12)	2.37	5.09
Cash dividends declared per common share	$ 1.09	$ 1.28	$ 1.00