Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 27, 2021	Mar. 28, 2020
Income Statement [Abstract]
Net sales	$ 288,012	$ 257,730
Cost of goods sold	183,492	172,933
Gross profit	104,520	84,797
Selling, general and administrative expenses	62,869	59,735
Income from operations	41,651	25,062
Other (expense) income, net	(36)	2,631
Income before income taxes	41,615	27,693
Provision for income taxes	8,885	4,918
Net income	$ 32,730	$ 22,775
Earnings per share:
Basic	$ 1.02	$ 0.70
Diluted	$ 1.02	$ 0.70
Weighted average shares outstanding:
Basic	32,048	32,354
Diluted	32,184	32,426