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Commitments and Contingencies (Details) - USD ($) $ in Millions | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Jun. 30, 2025 | Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract] |  |  |  |
Loss Contingency, Receivable |  |  |  | $ 0.5
Loan subject to loss-sharing arrangements, aggregate unpaid principal amount | $ 24,700.0 |  |  | 23,000.0
Loan loss accrual | 29.9 |  |  | 30.0
Loan loss guarantee reserve | 29.7 |  |  | 28.5
Level of risk retained (per claim) | 10.0 |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |  |
Loss Contingency, Receivable |  |  |  | $ 0.5
Loan loss incurred [Abstract] |  |  | $ 20.6 |
Insurance Claims [Member] |  |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |  |
Loss Contingency Accrual | 4.2 | $ 9.4 |  |
Loss Contingency Accrual, Provision | 3.9 | 0.3 |  |
Loss Contingency Accrual, Provision Adjustment | 0.3 | 1.2 |  |
Loss Contingency Accrual, Payments | (6.1) | (7.2) |  |
Loss Contingency Accrual | $ 2.3 | $ 3.7 |  |

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- Definition The per claim amount needed to reflect the estimated ultimate cost of settling claims relating to casualty insurance insured events that have occurred on or before a particular date (ordinarily, the balance sheet date) and the amount needed to provide for the estimated ultimate cost required to investigate and settle claims relating to insured events that have occurred on or before a particular date (ordinarily, the balance sheet date), whether or not reported to the insurer at that date. + References No definition available. + Details
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- Definition Loan loss expense + References No definition available. + Details
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- Definition Loan loss accrual + References No definition available. + Details
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- Definition contingent reserve for loss sharing program + References No definition available. + Details
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- Definition Loan subject to loss-sharing arrangements, aggregate unpaid principal amount + References No definition available. + Details
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- Definition Loss Contingency Accrual, Provision Adjustment + References No definition available. + Details
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- References No definition available. + Details
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- Definition Amount of loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-1 Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-10 + Details
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- Definition Amount of cash outflow reducing loss contingency liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-1 + Details
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- Definition Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-1 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of receivable related to a loss contingency accrual. For example, an insurance recovery receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-3 + Details
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- Details
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