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Revenue Recognition Revenue Recognition (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Out of Scope of Topic 606 Revenue [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Fees and Commissions, Mortgage Banking and Servicing | $ 103.6 | $ 82.5 | $ 256.5 | $ 217.3

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