CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Income Statement [Abstract]
Net sales	$ 357,667	$ 246,938	$ 605,221	$ 421,350
Cost of goods sold	148,550	109,413	250,920	191,367
Gross profit	209,117	137,525	354,301	229,983
Selling, general, and administrative expenses	136,692	90,992	241,827	167,288
Operating income	72,425	46,533	112,474	62,695
Interest expense	(832)	(2,657)	(1,686)	(5,767)
Other (expense) income	(955)	900	(1,253)	(938)
Income before income taxes	70,638	44,776	109,535	55,990
Income tax expense	(14,407)	(11,294)	(22,781)	(14,028)
Net income	$ 56,231	$ 33,482	$ 86,754	$ 41,962
Net income per share
Basic (in dollars per share)	$ 0.64	$ 0.39	$ 0.99	$ 0.48
Diluted (in dollars per share)	$ 0.63	$ 0.38	$ 0.98	$ 0.48
Weighted-average common shares outstanding
Basic (in shares)	87,327	86,937	87,253	86,883
Diluted (in shares)	88,652	87,477	88,561	87,469