CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Net sales	$ 231,654	$ 206,288	$ 387,007	$ 341,545
Cost of goods sold	115,377	105,718	194,103	183,786
Gross profit	116,277	100,570	192,904	157,759
Selling, general, and administrative expenses	81,277	67,384	149,120	121,329
Operating income	35,000	33,186	43,784	36,430
Interest expense	(5,695)	(8,593)	(11,762)	(16,719)
Other income (expense)	49	(93)	112	(111)
Income before income taxes	29,354	24,500	32,134	19,600
Income tax expense	(7,131)	(5,675)	(7,744)	(4,036)
Net income	$ 22,223	$ 18,825	$ 24,390	$ 15,564
Net income per share
Basic	$ 0.26	$ 0.23	$ 0.29	$ 0.19
Diluted	$ 0.26	$ 0.23	$ 0.28	$ 0.19
Weighted-average common shares outstanding
Basic	84,577	81,147	84,387	81,283
Diluted	86,227	82,932	86,042	82,956