CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Income Statement [Abstract]
Net sales	$ 1,091,721	$ 913,734	$ 778,833
Cost of goods sold	462,918	438,420	395,705
Gross profit	628,803	475,314	383,128
Selling, general, and administrative expenses	414,570	385,543	280,972
Operating income	214,233	89,771	102,156
Interest expense	(9,155)	(21,779)	(31,280)
Other income (expense)	123	(734)	(1,261)
Income before income taxes	205,201	67,258	69,615
Income tax expense	(49,400)	(16,824)	(11,852)
Net income	$ 155,801	$ 50,434	$ 57,763
Net income per share
Basic (in dollars per share)	$ 1.79	$ 0.59	$ 0.71
Diluted (in dollars per share)	$ 1.77	$ 0.58	$ 0.69
Weighted-average common shares outstanding
Basic (in shares)	86,978	85,088	81,777
Diluted (in shares)	87,847	86,347	83,519