Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Income Statement [Abstract]
Net sales	$ 257,730	$ 243,791
Cost of goods sold	172,933	156,299
Gross profit	84,797	87,492
Selling, general and administrative expenses	59,735	57,750
Income from operations	25,062	29,742
Other income, net	2,631	29
Income before income taxes	27,693	29,771
Provision for income taxes	4,918	6,364
Net income	$ 22,775	$ 23,407
Earnings Per Share:
Basic	$ 0.70	$ 0.71
Diluted	$ 0.70	$ 0.71
Weighted Average Shares Outstanding:
Basic	32,354	32,801
Diluted	32,426	32,889