COMMITMENTS AND CONTINGENCIES - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Operating lease cost	$ 10,839	$ 10,400
Variable lease cost	2,831	2,300
Total	$ 13,670	$ 12,700