CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (LOSS) (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Jun. 30, 2017	Jun. 30, 2016
Revenues:
Vessel revenues		$ 112,257	$ 162,430
Other operating revenues		2,849	5,495
Total revenues		115,106	167,925
Costs and expenses:
Vessel operating costs		83,773	108,874
Costs of other operating revenues		1,585	3,903
General and administrative		33,059	37,047
Vessel operating leases		5,542	8,441
Depreciation and amortization		36,287	44,552
Gain on asset dispositions, net		(3,189)	(5,643)
Asset impairments	[1]	163,423	36,886
Total costs and expenses		320,480	234,060
Operating loss		(205,374)	(66,135)
Other income (expenses):
Foreign exchange loss		(1,157)	(2,733)
Equity in net earnings (losses) of unconsolidated companies		4,517	(1)
Interest income and other, net		1,680	1,176
Reorganization items	[2]	(313,176)
Interest and other debt costs, net		(10,605)	(16,954)
Total other income (expenses)		(318,741)	(18,512)
Loss before income taxes		(524,115)	(84,647)
Income tax expense (benefit)		295	3,996
Net loss		(524,410)	(88,643)
Less: Net income attributable to noncontrolling interests		24	454
Net loss attributable to Tidewater Inc.		$ (524,434)	$ (89,097)
Basic loss per common share	[3]	$ (11.13)	$ (1.89)
Diluted loss per common share	[4]	$ (11.13)	$ (1.89)
Weighted average common shares outstanding		47,121,304	47,067,715
Adjusted weighted average common shares		47,121,304	47,067,715

[1] Refer to Note (16) for additional information regarding asset impairment charges.

[2] Refer to Note (4) for additional information regarding reorganization items.

[3] The company calculates “Loss per share, basic” by dividing “Net loss available to common shareholders” by “Weighted average outstanding shares of common stock, basic”.

[4] The company calculates “Loss per share, diluted” by dividing “Net loss available to common shareholders” by “Weighted average shares of common stock and equivalents”.