Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 1,510,644	$ 1,176,274	$ 1,185,424
Cost of sales	1,226,882	983,641	922,734
Gross margin	283,762	192,633	262,690
Selling, general, and administrative expense	163,777	133,963	147,164
Research and development expense	26,575	20,283	18,271
Goodwill impairment charges	0	9,053	11,560
Asset impairment charges	0	1,419	2,581
Restructuring (income) expense	(438)	11,237	785
Other - net	16,737	8,463	11,783
Operating profit	77,111	8,215	70,546
Other non-operating (income) expense - net	(5,115)	(3,939)	3,431
Interest expense - net	4,901	3,879	1,579
Income before income taxes	77,325	8,275	65,536
Income tax (benefit) expense	4,851	(7,187)	12,142
Net income	$ 72,474	$ 15,462	$ 53,394
Basic earnings per share:
Net income per share of common stock (in usd per share)	$ 3.55	$ 0.76	$ 2.62
Diluted earnings per share:
Net income per share of common stock (in usd per share)	$ 3.50	$ 0.75	$ 2.59
Weighted-average number of shares of common stock outstanding:
Basic (in shares)	20,422	20,338	20,365
Diluted (in shares)	20,689	20,603	20,655