LEASES - Operating Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Fixed lease costs	$ (1,694)	$ 20,235	$ 18,250
Short-term lease costs	2,244	1,669	1,291
Variable lease costs	4,480	4,470	5,554
Operating lease expenses	$ 5,030	$ 26,374	$ 25,095