Business Segments - Schedule of Business Segments Adjusted EBITDA (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting [Abstract]
Adjusted EBITDA	$ 12,906	$ 7,389
Depreciation and amortization	(3,127)	(2,617)
Stock-based compensation - equity classified awards	(1,480)	(739)
Stock-based compensation - liability classified awards (SARs)	640	0
Goodwill impairment	(7,191)	0
Long-lived asset impairment	(273)	0
Restructuring charges	(3,637)	(3,934)
Professional fees related to control remediation	(264)	(365)
Executive search fees	0	(80)
Sales and use tax audit	0	(25)
Loss from operations	(2,426)	(371)
Interest income	56	98
Interest expense	(4,386)	(2,745)
Change in fair value of warrant	5,205	0
Foreign exchange loss	(2,791)	(476)
Other income	896	36
Loss before income taxes	(3,446)	(3,458)
Income tax benefit	(606)	(1,414)
Net loss	$ (2,840)	$ (2,044)