Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Revenues	$ 129,871	$ 213,371
Cost of revenues	108,846	193,840
Gross profit (exclusive of depreciation and amortization included in selling, general and administrative expense shown below)	21,025	19,531
Selling, general and administrative expenses	19,667	28,293
Restructuring expense	955	6,338
Impairment expense	361	2,275
Operating (loss) income	42	(17,375)
Interest expense, net	10,978	10,819
Loss before income taxes	(10,936)	(28,194)
Income tax expense	51	331
Net loss	(10,987)	(28,525)
Other comprehensive income:	9
Comprehensive loss	$ (10,978)	$ (28,525)