SECURITIES (Securities Pledged) (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Pledged Financial Instruments, Not Separately Reported, Securities [Abstract]
State and local governments public deposits, carrying value	$ 209,304
Interest rate swap counterparties, carrying value	24,268
Repurchase transaction accounts, carrying value	292,700
Other, carrying value	2,529
Total pledged securities, carrying value	528,801
State and local governments public deposits, amortized cost	208,827
Interest rate swap counterparties, amortized cost	23,723
Repurchase transaction accounts, amortized cost	300,441
Other, amortized cost	2,529
Total pledged securities, amortized cost	535,520
State and local governments public deposits, fair value	221,319
Interest rate swap counterparties, fair value	24,285
Repurchase transaction accounts, fair value	292,700
Other, fair value	2,559
Total pledged securities, fair value	$ 540,863