SECURITIES (Securities Pledged) (Details) $ in Thousands	Mar. 31, 2022 USD ($)
Pledged Financial Instruments, Not Separately Reported, Securities [Abstract]
Securities pledged for State and Local Government Public Deposits, Carrying Value	$ 209,143
Securities pledged for Interest Rate Swap Counterparties, Carrying Value	23,765
Securities pledged for Repurchase Agreements, Carrying Value	294,032
Pledged Financial Instruments, Not Separately Reported, Interest-bearing Deposits for Other Debt Facilities	2,509
Total pledged securities, Carrying Value	529,449
Securities pledged for State and Local Government public deposits, Amortized Cost	209,922
Securities pledged for Interest Rate Swap Counterparties, Amortized Cost	23,652
Securities pledged for Repurchase Agreements, Amortized Cost	309,890
Pledged Financial Instruments, Not Separately Reported, Interest-bearing Deposits for Other Debt Facilities, Amortized Cost	2,509
Total pledged securities, Amortized Cost	545,973
Securities pledged for State and Local Government Public Deposits, Fair Value	207,100
Securities pledged for Interest Rate Swap Counterparties, Fair Value	23,767
Securities pledged for Retail Repurchase Agreements, Fair Value	289,235
Pledged Financial Instruments, Not Separately Reported, Interest-bearing Deposits for Other Debt Facilities, Fair Value	2,503
Total pledged securities, Fair Value	$ 522,605