Unaudited Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenue	$ 89,092	$ 119,600
Costs and expenses:
Direct operating expenses	51,225	56,299
Drydock expense	8,973	7,211
General and administrative expenses	10,964	14,489
Depreciation and amortization	18,488	18,357
Total costs and expenses	89,650	96,356
Operating income (loss)	(558)	23,244
Other income (expense):
Interest expense	(8,158)	(6,740)
Interest income	44	15
Foreign currency gain (loss) and other	(673)	936
Total other expense	(8,787)	(5,789)
Income (loss) before income taxes	(9,345)	17,455
Income tax benefit (expense)	4,219	(898)
Net income (loss)	$ (5,126)	$ 16,557
Net income (loss) per share:
Basic (in dollars per share)	$ (0.21)	$ 0.63
Diluted (in dollars per share)	$ (0.21)	$ 0.63
Weighted average shares outstanding:
Basic (in shares)	24,603	26,352
Diluted (in shares)	24,603	26,359
Common Stock, Dividends, Per Share, Declared		$ 0.25