UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Net revenue	$ 180,962	$ 198,692	$ 525,335	$ 634,608
Cost of revenue (excluding depreciation expense)	115,051	132,129	344,419	435,560
Gross profit	65,911	66,563	180,916	199,048
Other operating expenses	38,216	38,143	116,378	124,755
Bad debt expense	0	6,488	0	19,648
General and administrative expenses	12,478	9,405	34,084	28,325
Restructuring, acquisition, integration, and other expenses	885	4,037	4,789	11,407
Change in fair value of equity linked liabilities	1,605	1,103	1,228	1,103
Depreciation and amortization expense	5,767	7,058	18,617	21,288
Interest expense	14,971	13,360	42,171	38,649
Loss on extinguishment of debt	0	0	0	13,453
Loss (gain) on dispositions	(10)	(33)	(330)	652
Loss from continuing operations, before income taxes	(8,001)	(12,998)	(36,021)	(60,232)
Income tax expense	102	60	191	1,397
Loss from continuing operations, net of income taxes	(8,103)	(13,058)	(36,212)	(61,629)
Income (loss) from discontinued operations, net of income taxes	(71)	66	(118)	(606)
Net loss	(8,174)	(12,992)	(36,330)	(62,235)
Accrued dividends on preferred stock	(2,861)	(2,569)	(8,272)	(7,435)
Loss attributable to common stockholders	$ (11,035)	$ (15,561)	$ (44,602)	$ (69,670)
Loss per common share:
Loss from continuing operations, basic and diluted (in dollars per share)	$ (0.09)	$ (0.12)	$ (0.35)	$ (0.56)
Loss from discontinued operations, basic and diluted (in dollars per share)	0.00	0.00	0.00	(0.01)
Loss per common share, basic and diluted (in dollars per share)	$ (0.09)	$ (0.12)	$ (0.35)	$ (0.57)
Weighted average common shares outstanding, basic and diluted (in shares)	127,528	127,488	127,893	122,519