Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023
Income Statement [Abstract]
Net sales	$ 408,413	$ 458,789	$ 878,862	$ 985,316
Cost of sales	166,923	194,544	361,198	410,806
Gross profit	241,490	264,245	517,664	574,510
Operating expenses:
Sales and marketing	182,400	197,779	390,912	428,267
General and administrative	39,573	39,795	78,652	79,196
Research and development	11,578	15,445	24,019	29,888
Total operating expenses	235,370	253,019	506,002	537,351
Operating income	6,120	11,226	11,662	37,159
Interest expense, net	12,270	9,948	24,569	19,050
(Loss) income before income taxes	(6,150)	1,278	(12,907)	18,109
Income tax (benefit) expense	(1,099)	524	(374)	5,890
Net (loss) income	$ (5,051)	$ 754	$ (12,533)	$ 12,219
Basic net (loss) income per share:
Net (loss) income per share – basic (in dollars per share)	$ (0.22)	$ 0.03	$ (0.56)	$ 0.55
Weighted-average shares – basic (in shares)	22,614	22,460	22,560	22,378
Diluted net (loss) income per share:
Net (loss) income per share – diluted (in dollars per share)	$ (0.22)	$ 0.03	$ (0.56)	$ 0.54
Weighted-average shares – diluted (in shares)	22,614	22,502	22,560	22,543
Restructuring Costs and Asset Impairment Charges	$ 1,819	$ 0	$ 12,419	$ 0