Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues	$ 154,170	$ 296,964	$ 526,278	$ 812,254
Cost of revenues	138,283	228,661	457,072	639,932
Selling, general and administrative expenses	25,859	28,754	75,800	82,258
Other operating (income) loss, net	(709)	117	(1,777)	(1,941)
Operating income (loss)	(9,263)	39,432	(4,817)	92,005
Foreign currency exchange (gain) loss	3,236	1,221	4,390	(530)
Interest expense, net	2,129	2,321	6,608	8,071
Income (loss) from continuing operations before income taxes	(14,628)	35,890	(15,815)	84,464
Provision for income taxes	(10,157)	12,398	(8,083)	28,901
Income (loss) from continuing operations	$ (4,471)	$ 23,492	$ (7,732)	55,563
Income from discontinued operations, net of tax				1,152
Gain from disposal of discontinued operations, net of tax				22,117
Net income (loss)	$ (4,471)	$ 23,492	$ (7,732)	$ 78,832
Basic EPS:
Basic income (loss) from continuing operations per common share (in dollars per share)	$ (0.05)	$ 0.29	$ (0.09)	$ 0.67
Income from discontinued operations: (in dollars per share)				0.28
Net income: (in dollars per share)	$ (0.05)	$ 0.29	$ (0.09)	0.95
Diluted EPS:
Diluted income (loss) from continuing operations per common share (in dollars per share)	$ (0.05)	$ 0.25	$ (0.09)	0.59
Income from discontinued operations. (in dollars per share)				0.23
Net income (loss) (in dollars per share)	$ (0.05)	$ 0.25	$ (0.09)	$ 0.82