LEASES - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Operating leases, option to extend	6 years
Operating lease right-of-use assets	$ 14,181		$ 13,291
Operating lease right-of-use liabilities	14,485
Occupancy Expenses
Operating leases, rental expense	$ 568	$ 477
Minimum
Operating leases, remaining lease term	1 year
Maximum
Operating leases, remaining lease term	14 years