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LEASES - Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows for operating leases $ 1,218 $ 1,209
Operating cash flows for finance lease 43 32
Financing cash flows for finance lease $ 120 $ 95