UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Net revenue	$ 218,106	$ 232,462	$ 435,916	$ 470,924
Cost of revenue (excluding depreciation expense)	149,796	168,298	302,022	342,528
Gross profit	68,310	64,164	133,894	128,396
Other operating expenses	42,486	40,619	86,844	80,277
Bad debt expense	6,223	4,279	13,387	11,871
General and administrative expenses	10,025	9,414	19,504	20,465
Restructuring, acquisition, integration, and other expenses, net	3,911	4,291	7,134	6,958
Depreciation and amortization expense	6,789	4,252	13,777	8,790
Interest expense	12,715	9,469	25,459	18,881
Loss on extinguishment of debt	13,453	0	13,453	0
Loss (gain) on dispositions	685	0	685	(939)
Loss from continuing operations, before income taxes	(27,977)	(8,160)	(46,349)	(17,907)
Income tax expense	718	149	1,337	172
Loss from continuing operations, net of income taxes	(28,695)	(8,309)	(47,686)	(18,079)
(Loss) income from discontinued operations, net of income taxes	(503)	75	(940)	308
Net loss	(29,198)	(8,234)	(48,626)	(17,771)
Accrued dividends on preferred stock	(2,303)	(2,056)	(4,517)	(4,054)
Deemed dividends on preferred stock	(175)	(173)	(349)	(345)
Loss attributable to common stockholders	$ (31,676)	$ (10,463)	$ (53,492)	$ (22,170)
Loss per common share:
Loss from continuing operations, basic and diluted (in dollars per share)	$ (0.26)	$ (0.14)	$ (0.44)	$ (0.32)
Loss from discontinued operations, basic and diluted (in dollars per share)	0.00	0.00	(0.01)	0.00
Loss per common share, basic and diluted (in dollars per share)	$ (0.26)	$ (0.14)	$ (0.45)	$ (0.32)
Weighted average common shares outstanding, basic and diluted (in shares)	121,189	73,186	119,993	70,978