Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Revenue	$ 128,140	$ 124,058	$ 253,882	$ 192,314
Cost of revenue, excluding amortization	95,825	94,528	190,041	142,646
Operating expenses	25,889	36,476	52,807	56,891
Intangible amortization expense	2,738	3,604	6,679	5,254
Operating income (loss)	3,688	(10,550)	4,355	(12,477)
Interest expense, net	5,907	4,914	10,734	7,523
Loss on extinguishment of debt	11,429	0	11,429	0
Other non-operating income	(127)	(137)	(132)	(129)
Loss before income taxes	(13,521)	(15,327)	(17,676)	(19,871)
Income tax (benefit) expense, net	(2,127)	3,059	(2,884)	3,059
Net loss	$ (11,394)	$ (18,386)	$ (14,792)	$ (22,930)
Weighted average common shares outstanding
Basic (in shares)	49,872,000	49,546,000	49,865,000	48,061,000
Diluted (in shares)	49,872,000	49,546,000	49,865,000	48,061,000
Loss per share
Basic (in dollars per share)	$ (0.23)	$ (0.37)	$ (0.30)	$ (0.48)
Diluted (in dollars per share)	$ (0.23)	$ (0.37)	$ (0.30)	$ (0.48)