Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Net sales	$ 199,745	$ 213,256
Cost of sales (exclusive of depreciation and amortization shown separately below)	152,241	162,187
Selling, general and administrative expense	24,824	28,125
Depreciation and amortization	23,184	23,425
Restructuring and integration expense, net	0	(12)
Goodwill impairment	239,699	0
Other operating (income) expense, net	5,129	(152)
Loss from operations	(245,332)	(317)
Interest expense	17,077	13,801
Loss on extinguishment of debt and write-off of debt issuance costs	0	2,699
Other (income) expense, net	1,120	729
Loss before benefit (provision) for income taxes and share of net income (loss) from joint venture	(263,529)	(17,546)
Benefit (provision) for income taxes	15,609	(2,241)
Share of net income (loss) from joint venture	(271)	269
Net income (loss)	(248,191)	(19,518)
Other comprehensive loss:
Foreign currency translation gain (loss)	(14,342)	1,321
Change in fair value of interest rate swap, net of tax	(11,209)	(3,856)
Less: reclassification adjustment for (gains) losses included in net income, net of tax	1,052	0
Other comprehensive income (loss)	(24,499)	(2,535)
Comprehensive income (loss)	$ (272,690)	$ (22,053)
Basic net income (loss) per common share:
Net loss per share (in dollars per shares)	$ (5.96)	$ (0.47)
Weighted average shares outstanding (in shares)	42,111	41,972
Diluted net income (loss) per common share:
Net loss per share (in dollars per share)	$ (5.96)	$ (0.47)
Weighted average shares outstanding (in shares)	42,111	41,972