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COMMITMENTS AND CONTINGENCIES Financial Instruments (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Commitments to Extend Credit [Member] |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Off-balance sheet financial instruments | $ 4,632,105 | $ 4,566,041
Standby letters of credit [Member] |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Off-balance sheet financial instruments | 21,427 | 24,941
Deferred standby letter of credit fees [Member] |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Off-balance sheet financial instruments | 155 | 168
Obligation to Repurchase Receivables Sold [Member] |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Off-balance sheet financial instruments | $ 153,850 | $ 167,274

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