LEASES - Summary of Lease Expense and Weighted Average (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Leases [Abstract]
Operating lease cost	$ 2,140	$ 1,467	$ 3,994	$ 2,730
Short-term lease cost	17	9	38	48
Total lease cost	$ 2,157	$ 1,476	$ 4,032	$ 2,778
Weighted average remaining lease term	14 years		14 years		5 years
Weighted average discount rate	5.00%		5.00%		4.70%