Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue	$ 24,641	$ 30,487	$ 49,000	$ 69,281
Costs and expenses:
Direct operating expenses	19,384	20,932	38,559	44,667
Drydock expense	1,654	63	4,556	890
General and administrative expenses	8,804	8,854	18,381	18,642
Pre-petition restructuring charges	11,933		17,787
Depreciation and amortization	13,578	14,911	27,148	30,950
Impairment charges		46,151		162,808
(Gain) loss on sale of assets and other	(32)	5,914	5,241	5,918
Total costs and expenses	55,321	96,825	111,672	263,875
Operating loss	(30,680)	(66,338)	(62,672)	(194,594)
Other income (expense):
Interest expense	(5,716)	(8,991)	(24,152)	(17,388)
Interest income	9	35	16	75
Gain on extinguishment of debt		25,792		35,912
Reorganization items	(5,094)		(5,094)
Foreign currency transaction loss and other	(204)	(1,083)	(391)	(1,127)
Total other income (expense)	(11,005)	15,753	(29,621)	17,472
Loss before income taxes	(41,685)	(50,585)	(92,293)	(177,122)
Income tax expense	1,138	3,005	(73,069)	38,360
Net loss	$ (40,547)	$ (47,580)	$ (165,362)	$ (138,762)
Loss per share:
Basic (in dollars per share)	$ (1.58)	$ (1.90)	$ (6.50)	$ (5.55)
Diluted (in dollars per share)	$ (1.58)	$ (1.90)	$ (6.50)	$ (5.55)
Weighted average shares outstanding:
Basic (in shares)	25,583	25,077	25,442	24,985
Diluted (in shares)	25,583	25,077	25,442	24,985