Allowance for Loss Sharing - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | 12 Months Ended | |
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Commitments and Contingencies Disclosure [Abstract] | ||||
| Loss sharing obligations | $ 1.8 | $ 1.8 | $ 1.7 | |
| Loss Sharing Obligations, Allowance, Specific Reserve | 8.5 | 8.5 | 9.3 | |
| Loss sharing obligations, allowance | 14.3 | $ 14.3 | $ 8.4 | |
| Loss-sharing obligations, percent | 0.19% | 0.11% | ||
| CECL reserves impact | 5.0 | $ (2.7) | ||
| Loss sharing under the DUS program | 8,000.0 | $ 8,000.0 | $ 7,900.0 | |
| Guarantor obligations, maximum exposure, undiscounted | $ 1,200.0 | $ 1,200.0 | ||
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- Definition Guarantee Obligations Included In Allowance For Loss Sharing Obligations No definition available.
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- Definition Impact Of Adopting Current Expected Credit Losses No definition available.
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- Definition Loss Sharing Obligations, Allowance No definition available.
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- Definition Loss Sharing Obligations, Allowance, Specific Reserve No definition available.
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- Definition Loss-Sharing Obligations, Percent No definition available.
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- References No definition available.
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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