LEASES (Lessee Lease Portfolio and Other Supplemental Lease Information) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Lessee, Operating Lease
Right-of-use assets	$ 48,051	$ 54,941
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets	Other Assets
Lease liabilities	$ 58,901	$ 66,052
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities
Weighted average remaining lease term (years)	7 years 3 months 7 days	7 years 4 months 9 days
Weighted average discount rate, percent	2.66%	2.69%
Lessee, Finance Lease
Right-of-use-assets	$ 7,425
Lease liabilities	$ 10,621
Weighted-average remaining lease term (years)	8 years 29 days
Weighted-average discount rate, percent	1.17%