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v3.25.3

DEBT SECURITIES - Additional Information (Details) - USD ($) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Schedule Of Investments [Line Items] |  |
Proceeds from sales of available-for-sale debt securities | $ 994,800,000 |
Average yield | 2.02% | 1.45%
Allowance for credit losses, Held-to-Maturity securities | $ 698,000 | $ 802,000
Debt Securities, Held-to-maturity | 273,363,000 | 317,786,000
Past Due [Member] |  |
Schedule Of Investments [Line Items] |  |
Debt Securities, Held-to-maturity | 0 | 0
Municipal Bonds [Member] |  |
Schedule Of Investments [Line Items] |  |
Allowance for credit losses, Held-to-Maturity securities | 700,000 | $ 800,000
U.S. Treasury securities [Member] |  |
Schedule Of Investments [Line Items] |  |
Proceeds from sales of available-for-sale debt securities | $ 592,800,000 |
U.S. Treasury securities [Member] | Sale Of Available-for-Sale Securities Debt [Member] |  |
Schedule Of Investments [Line Items] |  |
Average yield | 4.15% |
U.S. Agency MBS [Member] |  |
Schedule Of Investments [Line Items] |  |
Proceeds from sales of available-for-sale debt securities | $ 402,000,000.0 |
U.S. Agency MBS [Member] | Sale Of Available-for-Sale Securities Debt [Member] |  |
Schedule Of Investments [Line Items] |  |
Average yield | 5.24% |
Residential MBS [Member] |  |
Schedule Of Investments [Line Items] |  |
Proceeds from sales of available-for-sale debt securities | $ 384,200,000 |
Average yield | 2.15% | 1.79%
Allowance for credit losses, Held-to-Maturity securities | $ 0 | $ 0
Debt Securities, Held-to-maturity | $ 116,576,000 | $ 129,319,000
Residential MBS [Member] | Private label [Member] |  |
Schedule Of Investments [Line Items] |  |
Average yield |  | 6.62%
Debt Instrument Description Of Variable Rate Basis | 3-month CME Term SOFR |
Spread on variable rate | 0.26161% |
Residential MBS [Member] | FICO Score, Greater than 700 [Member] | Private label [Member] | LTV Less than 80 Percent [Member] |  |
Schedule Of Investments [Line Items] |  |
Loan To Value Coverage Percentage | 80.00% |

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