LEASES - Balance Sheet Classifications (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease assets	$ 9,757	$ 10,528
Total lease right-of-use assets, net	9,757	10,528
Current portion of operating lease liabilities	3,219	3,195
Operating lease liabilities	6,538	7,333
Total lease liabilities	$ 9,757	$ 10,528