Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Income Statement [Abstract]
Net sales	$ 449,045	$ 354,386
Cost of sales	373,754	287,590
Gross margin	75,291	66,796
Selling, general, and administrative expense	41,662	36,776
Research and development expense	7,074	6,206
Restructuring expense (income)	1,076	(378)
Other—net	5,873	4,474
Operating profit	19,606	19,718
Other non-operating income—net	(1,169)	(1,276)
Interest expense—net	3,735	761
Income before income taxes	17,040	20,233
Income tax expense	3,021	3,466
Net income	$ 14,019	$ 16,767
Basic earnings per share:
Net income (loss) per share of common stock (in dollars per share)	$ 0.69	$ 0.82
Diluted earnings per share:
Net income (loss) per share of common stock (in dollars per share)	$ 0.68	$ 0.81
Weighted-average number of shares of common stock outstanding:
Basic (in shares)	20,464	20,374
Diluted (in shares)	20,724	20,628