LEASES - Future Operating Lease Liability Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Future operating lease liability maturities
2021	$ 2,511
2022	2,639
2023	2,690
2024	2,540
2025	2,539
2026 and thereafter	99,290
Total operating lease payments	112,209
Less: Imputed interest	(58,614)
Operating lease liabilities	53,595	$ 46,391
Future finance lease liability maturities
2021	1,936
2022	2,183
2023	2,183
2024	2,183
2025	2,224
2026 and thereafter	122,932
Total lease payments	133,641
Less: Imputed interest	(68,042)
Finance lease liabilities	$ 65,599