Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Net sales	$ 1,786,550	$ 1,684,739	$ 1,665,187
Cost of sales	1,477,924	1,358,754	1,316,145
Gross margin	308,626	325,985	349,042
Selling, general, and administrative expense	143,057	145,588	157,911
Research and development expense	25,941	29,028	27,540
Goodwill impairment	0	56,067	0
Long-lived asset impairment	0	17,134	0
Loss on asset disposal		6,412	0
Restructuring expense (Note E)	3,155	6,848	3,824
Other — net (Note F)	26,677	17,685	23,323
Operating profit	109,796	47,223	136,444
Other non-operating (income) expense — net (Note P)	(2,437)	(2,443)	(2,710)
Interest expense — net (Note G)	30,692	34,764	31,323
Total income (loss) before income taxes	81,541	14,902	107,831
Income tax expense (Note H)	6,718	9,014	12,129
Net income	$ 74,823	$ 5,888	$ 95,702
Basic earnings per share:
Net income per share of common stock (in dollars per share)	$ 3.61	$ 0.28	$ 4.64
Diluted earnings per share:
Net income per share of common stock (in dollars per share)	$ 3.58	$ 0.28	$ 4.58
Weighted-average number of shares of common stock outstanding:
Basic (in shares)	20,755	20,732	20,619
Diluted (in shares)	20,912	20,928	20,911