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v3.25.3

Subsequent Event - Narrative (Details) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2026 USD ($) board_member | Sep. 30, 2025 USD ($) | Dec. 31, 2024 USD ($)
Subsequent Event [Line Items] |  |  |
Assets |  | $ 212,903.0 | $ 212,927.0
Comerica Incorporated |  |  |
Subsequent Event [Line Items] |  |  |
Assets |  | $ 77,000.0 |
Comerica Incorporated | Subsequent Event |  |  |
Subsequent Event [Line Items] |  |  |
Share exchange ratio | 1.8663 |  |
Expected acquisition price | $ 10,900.0 |  |
Number of board members | board_member | 3 |  |

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