Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Net sales	$ 125,206	$ 125,362	$ 252,294	$ 253,429
Cost of sales (exclusive of depreciation and amortization shown separately below)	107,684	103,889	216,105	208,467
Selling, general, and administrative expense	10,975	14,794	24,140	28,248
Depreciation and amortization	11,550	11,340	23,066	22,769
Other operating expense (income), net	(956)	(147)	105	1,879
Loss from operations	(4,047)	(4,514)	(11,122)	(7,934)
Interest expense	5,457	3,488	9,745	6,927
Other expense (income), net	5,641	(67)	3,433	(3,063)
Loss before provision for income taxes and share of net income from joint venture	(15,145)	(7,935)	(24,300)	(11,798)
Provision for income taxes	(325)	(1,051)	(1,626)	(2,582)
Share of net income from joint venture	1,093	419	1,374	2,511
Net loss	(14,377)	(8,567)	(24,552)	(11,869)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(2,374)	(8,490)	(534)	(5,890)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	0	373	(230)	1,560
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	(449)	31	(917)	65
Other Comprehensive Income (Loss), Net of Tax, Total	(2,823)	(8,086)	(1,681)	(4,265)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	$ (17,200)	$ (16,653)	$ (26,233)	$ (16,134)
Earnings Per Share, Basic [Abstract]
Net loss per common share (in dollars per shares)	$ (0.38)	$ (0.25)	$ (0.67)	$ (0.38)
Weighted average common shares outstanding, basic (in shares)	46,357	44,708	45,836	44,649
Earnings Per Share, Diluted [Abstract]
Net loss per common share (in dollars per share)	$ (0.38)	$ (0.25)	$ (0.67)	$ (0.38)
Weighted average common shares outstanding, diluted (in shares)	46,357	44,708	45,836	44,649