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v3.25.2

Securities - Additional Information (Details) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 USD ($) Security | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) Segment Security | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) Security
Schedule Of Held To Maturity Securities [Line Items] |  |  |  |  |
Number of Investment Securities Segments | Segment |  |  | 2 |  |
Credit losses |  |  | $ 0 |  |
Municipal securities percentage of securities portfolio | 0.80% |  | 0.80% |  |
Securities in Unrealized Loss Positions Qualitative Disclosure Number of Positions Greater Than or Equal to One Year | Security | 865 |  | 865 |  | 949
Gain (loss) on sale of investment securities | $ 0 | $ (9,700,000) | $ 0 | $ (9,400,000) |
Available for Sale Securities, Amortized Cost Basis | 343,765,000 |  | 343,765,000 |  | $ 339,016,000
Debt Securities, Available-for-Sale | 342,108,000 |  | 342,108,000 |  | 336,960,000
Collateralized Securities [Member] |  |  |  |  |
Schedule Of Held To Maturity Securities [Line Items] |  |  |  |  |
Available for Sale Securities, Amortized Cost Basis | 7,750,000,000 |  | 7,750,000,000 |  | 10,260,000,000
Debt Securities, Available-for-Sale | $ 6,880,000,000 |  | $ 6,880,000,000 |  | $ 8,910,000,000
Securities Concentration Risk [Member] | Stockholders' Equity, Total [Member] | Other Than U.S. Government and Agencies [Member] |  |  |  |  |
Schedule Of Held To Maturity Securities [Line Items] |  |  |  |  |
Concentration Risk, Percentage |  |  | 10.00% |  | 10.00%

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