REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 174,412	$ 155,353
Sales Revenue | Customer Concentration Risk | One customer
Disaggregation of Revenue [Line Items]
Customer concentration	10.00%	15.00%
United States
Disaggregation of Revenue [Line Items]
Net sales	$ 164,998	$ 148,668
International
Disaggregation of Revenue [Line Items]
Net sales	9,414	6,685
Coolers & Equipment
Disaggregation of Revenue [Line Items]
Net sales	59,494	59,652
Drinkware
Disaggregation of Revenue [Line Items]
Net sales	112,617	90,955
Other
Disaggregation of Revenue [Line Items]
Net sales	2,301	4,746
Wholesale
Disaggregation of Revenue [Line Items]
Net sales	94,816	93,608
Direct-to-consumer
Disaggregation of Revenue [Line Items]
Net sales	$ 79,596	$ 61,745