REVENUE (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2021 USD ($) revenue_substream	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Disaggregation of Revenue [Line Items]
Net sales	$ 213,133	$ 197,869	$ 202,365	$ 185,656	$ 180,713	$ 175,140	$ 173,355	$ 174,436	$ 799,023	$ 703,644	$ 643,705
Number of sub-streams of revenue | revenue_substream									4
United States
Disaggregation of Revenue [Line Items]
Net sales									$ 584,661	516,347	475,033
Foreign Countries
Disaggregation of Revenue [Line Items]
Net sales									214,362	187,297	168,672
Product Sales
Disaggregation of Revenue [Line Items]
Net sales									762,085	666,193	609,741
Co-manufacturing
Disaggregation of Revenue [Line Items]
Net sales									27,994	29,063	24,087
Bill and Hold
Disaggregation of Revenue [Line Items]
Net sales									0	1,158	3,218
Consignment
Disaggregation of Revenue [Line Items]
Net sales									4,439	2,939	2,299
Product Sales Revenue
Disaggregation of Revenue [Line Items]
Net sales									794,518	699,353	639,345
Royalty Revenue
Disaggregation of Revenue [Line Items]
Net sales									$ 4,505	$ 4,291	$ 4,360