Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Revenues	$ 78,271	$ 75,026
Cost of revenues	39,520	37,455
Gross profit	38,751	37,571
Operating expenses
General and administrative	15,853	14,844
Research and development	1,667	1,432
Sales and marketing	11,645	12,703
Depreciation and amortization	8,916	9,825
Total operating expenses	38,081	38,804
Income (loss) from operations	670	(1,233)
Other expenses
Other expense	28	97
Interest expense	12,962	12,066
Loss before income taxes	(12,320)	(13,396)
Income tax provision	206	95
Net loss	(12,526)	(13,491)
Other comprehensive income, net of tax
Foreign currency translation	(4,428)	810
Total other comprehensive income, net of tax	(4,428)	810
Comprehensive loss	$ (16,954)	$ (12,681)
Net loss per share - basic and diluted	$ (0.29)	$ (0.32)
Weighted average shares outstanding - basic and diluted	42,529,017	42,302,775