LEASE COMMITMENTS AND CONTINGENCIES - Supplemental Lease Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($)
Leases [Abstract]
Operating lease right-of-use assets	$ 13,167
Present value of lease liabilities	$ 17,184
Weighted average remaining lease term	4 years 8 months 12 days
Weighted average discount rate	2.90%
Operating cash flows from operating leases	$ 3,799