Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Revenue	$ 182,632	$ 271,842
Cost of sales	160,542	201,744
Gross profit	22,090	70,098
Operating expenses
Selling, general and administrative expenses	60,161	68,968
Transaction expenses	37	593
Impairments of intangible assets, property and equipment	17,320	0
Contingent consideration benefit	0	(4,629)
Loss (gain) on disposal of assets and other	(21)	20
Total operating expenses	77,497	64,952
Loss from equity investment	0	(849)
Operating income (loss)	(55,407)	4,297
Other expense (income)
Interest expense	6,724	8,181
Foreign exchange and other losses (gains), net	(5,007)	2,277
Gain on extinguishment of debt	(7,459)	0
Deferred loan costs written off	(1,829)	0
Total other expense (income), net	(3,913)	10,458
Loss before income taxes	(51,494)	(6,161)
Income tax expense (benefit)	(14,350)	1,727
Net loss	$ (37,144)	$ (7,888)
Weighted average shares outstanding
Basic (in shares)	111,173	109,643
Diluted (in shares)	111,173	109,643
Loss per share
Basic (in USD per share)	$ (0.33)	$ (0.07)
Diluted (in USD per share)	$ (0.33)	$ (0.07)
Other comprehensive income (loss), net of tax:
Net loss	$ (37,144)	$ (7,888)
Change in foreign currency translation, net of tax of $0	(8,846)	4,834
Gain (loss) on pension liability	21	(9)
Comprehensive loss	$ (45,969)	$ (3,063)