Unaudited Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenue	$ 74,461,000	$ 131,365,000	$ 163,553,000	$ 250,965,000
Costs and expenses:
Direct operating expenses	45,946,000	59,724,000	97,171,000	116,023,000
Drydock expense	2,436,000	4,685,000	11,409,000	11,896,000
General and administrative expenses	11,521,000	17,403,000	22,485,000	31,892,000
Depreciation and amortization	$ 18,765,000	19,204,000	37,253,000	37,561,000
Impairment charge		7,459,000	0	7,459,000
Total costs and expenses	$ 78,668,000	108,475,000	168,318,000	204,831,000
Operating income (loss)	(4,207,000)	22,890,000	(4,765,000)	46,134,000
Other income (expense):
Interest expense	(8,194,000)	(7,422,000)	(16,352,000)	(14,162,000)
Interest income	74,000	15,000	118,000	30,000
Foreign currency loss and other	(30,000)	578,000	(703,000)	1,514,000
Total other expense	(8,150,000)	(6,829,000)	(16,937,000)	(12,618,000)
Income (loss) before income taxes	(12,357,000)	16,061,000	(21,702,000)	33,516,000
Income tax benefit (provision)	4,112,000	(1,862,000)	8,331,000	(2,760,000)
Net income (loss)	$ (8,245,000)	$ 14,199,000	$ (13,371,000)	$ 30,756,000
Income (loss) per common share:
Basic (in dollars per share)	$ (0.33)	$ 0.54	$ (0.54)	$ 1.17
Diluted (in dollars per share)	$ (0.33)	$ 0.54	$ (0.54)	$ 1.17
Weighted average shares outstanding:
Weighted-average common shares outstanding (in shares)	24,696,000	26,425,000	24,650,000	26,389,000
Diluted (in shares)	24,696,000	26,433,000	24,650,000	26,396,000