Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Revenues	$ 312,054	$ 296,282
Cost of revenues	160,845	159,617
Gross profit	151,209	136,665
Operating expenses
General and administrative	55,005	54,633
Research and development	5,945	7,100
Sales and marketing	48,517	58,273
Depreciation and amortization	39,149	41,519
Total operating expenses	148,616	161,525
Income (loss) from operations	2,593	(24,860)
Other expenses
Other expense	308	29
Loss on extinguishment of debt	7,203
Interest expense	48,377	46,591
Loss before income taxes	(53,295)	(71,480)
Income tax (benefit) provision	719	(3,741)
Net loss	(54,014)	(67,739)
Other comprehensive income (loss), net of tax
Foreign currency translation	311	(870)
Total other comprehensive income (loss), net of tax	311	(870)
Comprehensive loss	$ (53,703)	$ (68,609)
Net loss per share - basic and diluted	$ (1.27)	$ (1.68)
Weighted average shares outstanding - basic and diluted	42,425,295	40,382,578