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SECURITIES (Securities Pledged) (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Schedule of Pledged Financial Instruments, Not Separately Reported [Line Items]
Pledged Financial Instruments, Not Separately Reported, Carrying Value	$ 685,678
Securities pledged for Interest Rate Swap Counterparties, Amortized Cost	688,202
Pledged Financial Instruments, Not Separately Reported, Fair Value	595,925
Asset Pledged as Collateral without Right | Securities For State and Local Government Public Deposits
Schedule of Pledged Financial Instruments, Not Separately Reported [Line Items]
Pledged Financial Instruments, Not Separately Reported, Carrying Value	238,597
Securities pledged for Interest Rate Swap Counterparties, Amortized Cost	240,736
Pledged Financial Instruments, Not Separately Reported, Fair Value	216,883
Asset Pledged as Collateral without Right | Securities For Federal Reserve
Schedule of Pledged Financial Instruments, Not Separately Reported [Line Items]
Pledged Financial Instruments, Not Separately Reported, Carrying Value	120,463
Securities pledged for Interest Rate Swap Counterparties, Amortized Cost	120,463
Pledged Financial Instruments, Not Separately Reported, Fair Value	103,769
Asset Pledged as Collateral without Right | Securities for Interest Rate Swap Counterparties
Schedule of Pledged Financial Instruments, Not Separately Reported [Line Items]
Pledged Financial Instruments, Not Separately Reported, Carrying Value	6,422
Securities pledged for Interest Rate Swap Counterparties, Amortized Cost	6,807
Pledged Financial Instruments, Not Separately Reported, Fair Value	6,268
Asset Pledged as Collateral without Right | Securities Sold under Agreements to Repurchase
Schedule of Pledged Financial Instruments, Not Separately Reported [Line Items]
Pledged Financial Instruments, Not Separately Reported, Carrying Value	317,761
Securities pledged for Interest Rate Swap Counterparties, Amortized Cost	317,761
Pledged Financial Instruments, Not Separately Reported, Fair Value	266,592
Asset Pledged as Collateral without Right | Interest Bearing Deposits for Other Debt Facilities
Schedule of Pledged Financial Instruments, Not Separately Reported [Line Items]
Pledged Financial Instruments, Not Separately Reported, Carrying Value	2,435
Securities pledged for Interest Rate Swap Counterparties, Amortized Cost	2,435
Pledged Financial Instruments, Not Separately Reported, Fair Value	$ 2,413

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