CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues:
Total revenues		$ 119,765	$ 99,192	$ 367,772	$ 296,286
Costs and expenses:
Vessel operating costs		80,619	65,237	243,261	194,613
Costs of other operating revenues		534	1,681	1,884	4,797
General and administrative		30,474	25,546	81,310	73,536
Depreciation and amortization		25,735	13,390	73,705	38,192
Loss (gain) on asset dispositions, net		(270)	1,571	(1,047)	(1,686)
Asset impairments	[1]	5,224	16,853	5,224	24,254
Total operating costs and expenses		142,316	124,278	404,337	333,706
Operating loss		(22,551)	(25,086)	(36,565)	(37,420)
Other income (expense):
Foreign exchange gain (loss)		173	1	(324)	(1,349)
Equity in net earnings (losses) of unconsolidated companies		(468)	56	(435)	(14,993)
Interest income and other, net		1,579	2,709	5,908	5,495
Interest and other debt costs, net		(7,468)	(7,585)	(22,786)	(22,731)
Total other expense		(6,184)	(4,819)	(17,637)	(33,578)
Loss before income taxes		(28,735)	(29,905)	(54,202)	(70,998)
Income tax expense		15,071	1,278	26,443	10,396
Net loss		(43,806)	(31,183)	(80,645)	(81,394)
Less: Net income attributable to noncontrolling interests		394	(287)	1,245	(386)
Net loss attributable to Tidewater Inc.		$ (44,200)	$ (30,896)	$ (81,890)	$ (81,008)
Basic loss per common share		$ (1.15)	$ (1.16)	$ (2.17)	$ (3.23)
Diluted loss per common share		$ (1.15)	$ (1.16)	$ (2.17)	$ (3.23)
Weighted average common shares outstanding		38,537	26,615	37,767	25,073
Adjusted weighted average common shares		38,537	26,615	37,767	25,073
Vessel Revenues
Revenues:
Total revenues		$ 117,173	$ 97,011	$ 360,476	$ 288,679
Other Operating Revenues
Revenues:
Total revenues		$ 2,592	$ 2,181	$ 7,296	$ 7,607

[1] Refer to Note (14) for additional information regarding asset impairment charges.