REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Sep. 26, 2020	Oct. 02, 2021	Sep. 26, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 362,643	$ 294,603	$ 967,864	$ 715,953
Customer Concentration Risk | Sales Revenue | Largest Customer
Disaggregation of Revenue [Line Items]
Customer concentration percentage	11.00%		10.00%
United States
Disaggregation of Revenue [Line Items]
Net sales	$ 328,545	274,421	$ 877,577	676,553
International
Disaggregation of Revenue [Line Items]
Net sales	34,098	20,182	90,287	39,400
Coolers & Equipment
Disaggregation of Revenue [Line Items]
Net sales	149,002	124,155	400,261	312,259
Drinkware
Disaggregation of Revenue [Line Items]
Net sales	205,035	165,934	546,796	392,877
Other
Disaggregation of Revenue [Line Items]
Net sales	8,606	4,514	20,807	10,817
Wholesale
Disaggregation of Revenue [Line Items]
Net sales	165,504	144,191	447,068	352,898
Direct-to-consumer
Disaggregation of Revenue [Line Items]
Net sales	$ 197,139	$ 150,412	$ 520,796	$ 363,055