LEASES - Leases Balance Sheets Location (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Jan. 01, 2019
Operating lease right-of-use asset	$ 9,000	$ 10,308
Operating lease liability	$ 11,731	$ 13,480
Weighted-Average Remaining Lease Term - Operating leases	4 years 4 months 28 days	4 years 10 months 28 days
Weighted-Average Discount Rate - Operating leases	3.65%	3.71%
ASU 2016-02
Operating lease right-of-use asset			$ 12,900
Operating lease liability			$ 16,600