Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 04, 2021	Mar. 29, 2020
Income Statement [Abstract]
Net sales	$ 272,806	$ 217,736
Cost of sales	174,913	153,181
Gross profit	97,893	64,555
Selling and administrative expense	70,144	71,370
Operating income (loss)	27,749	(6,815)
Interest expense	342	735
Income (loss) before taxes	27,407	(7,550)
Income tax expense (benefit)	5,861	(2,939)
Net income (loss)	$ 21,546	$ (4,611)
Earnings (loss) per share:
Basic	$ 1.01	$ (0.22)
Diluted	$ 0.96	$ (0.22)
Weighted-average shares of common stock outstanding:
Basic	21,417	21,149
Diluted	22,371	21,149