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LEASES - Lease Cost (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2019
Leases [Abstract]    
Operating lease cost $ 1,200 $ 3,398
Finance lease cost    
Amortization of ROU leased assets 36 108
Interest on lease liabilities 16 51
Net lease cost $ 1,252 $ 3,557