BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) segment	Sep. 30, 2020 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of operating segments | segment			2
Number of reportable segments | segment			1
Revenue from External Customer [Line Items]
Net sales	$ 123,822	$ 96,658	$ 369,011	$ 254,763
Income tax benefit (expense)	19,844	(54)	19,025	(384)
Income tax benefit (expense), validation allowance release	21,252		21,252
Shipping and Handling
Revenue from External Customer [Line Items]
Net sales	$ 2,242	$ 1,131	$ 5,170	$ 3,475