Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Revenue	$ 261,360	$ 267,211
Cost of goods sold	197,918	205,201
Gross profit	63,442	62,010
Operating expenses:
Selling, general and administrative expenses	51,913	55,830
Depreciation and amortization	3,127	2,617
Goodwill impairment	7,191	0
Restructuring charges	3,637	3,934
Loss from operations	(2,426)	(371)
Other income (expense):
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
Total other expense	(1,020)	(3,087)
Loss before income taxes	(3,446)	(3,458)
Income tax benefit	(606)	(1,414)
Net loss	$ (2,840)	$ (2,044)
Basic loss per share (in dollars per share)	$ (0.05)	$ (0.04)
Diluted loss per share (in dollars per share)	$ (0.15)	$ (0.04)
Comprehensive loss	$ (7,936)	$ (1,332)