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LOANS, ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Receivables [Abstract] |  |  |  |
Days To Be Termed As Non Accrual Loans |  | 90 days |  |
Tdrs Recorded Investment On Nonaccrual Status |  |  | $ 11,520,000 |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 14,278,070,000 | 13,928,675,000 |
Financing Receivable, Credit Loss, Expense (Reversal) |  | 23,250,000 | 6,500,000 | $ 18,205,000
Financing Receivable, Allowance for Credit Loss | [1] | 14,278,070,000 | 13,928,675,000 |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) |  | 10,200,000 |  |
Off-Balance Sheet, Credit Loss, Liability |  | $ 1,500,000 | 1,300,000 |
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) by percentage |  | (6.70%) |  |
Financing Receivable, Unamortized Loan Cost (Fee) |  | $ 6,400,000 | 5,000,000 |
Interest Receivable |  | 60,200,000 | $ 50,800,000 | $ 43,700,000
Accounts Receivable, Noncurrent, Accrued Interest, Writeoff |  | $ 1,000,000 |  |
[1] | (2)Other consumer portfolio is inclusive of deposit account overdrafts recorded as loan balances and the associated gross write-offs.

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