LEASE COMMITMENTS AND CONTINGENCIES - Supplemental Information Regarding Leases (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
Leases [Abstract]
Operating lease right-of-use assets	$ 11,194
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets
Operating lease liabilities	$ 14,576
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities
Weighted average remaining lease term	4 years
Weighted average discount rate	2.90%
Operating cash flows from operating leases	$ 2,953