Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Revenues	$ 90,881	$ 81,167	$ 177,857	$ 160,997
Cost of revenues	78,829	68,750	149,825	137,375
Gross profit (exclusive of depreciation and amortization included in selling, general and administrative expense shown below)	12,052	12,417	28,032	23,622
Selling, general and administrative expenses	12,942	17,755	27,490	41,074
Restructuring expense	906	2,262	1,400	7,643
Impairment expense	8,687	500	8,767	2,142
Operating loss	(10,483)	(8,100)	(9,625)	(27,237)
Interest expense, net	11,010	11,053	21,988	21,872
Loss before income taxes and discontinued operations	(21,493)	(19,153)	(31,613)	(49,109)
Income tax expense	27	30	66	340
Loss from continuing operations before discontinued operations	(21,520)	(19,183)	(31,679)	(49,449)
Discontinued operations, net of income taxes	(723)	9,435	(1,551)	11,176
Net loss	(22,243)	(9,748)	(33,230)	(38,273)
Other comprehensive income:	5	26	9	26
Comprehensive loss	$ (22,238)	$ (9,722)	$ (33,221)	$ (38,247)