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Commitments and Contingencies (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract] |  |  |
Loss Contingency, Receivable | $ 22.5 |  | $ 22.5
Loan subject to loss-sharing arrangements, aggregate unpaid principal amount | 16,500.0 |  | 15,400.0
Loan loss accrual | 26.3 |  | 24.6
Loan loss guarantee reserve | 20.0 |  | 22.9
Loss Contingency Accrual [Roll Forward] |  |  |
Loss Contingency, Receivable | 22.5 |  | 22.5
Loan loss guarantee reserve | 20.0 |  | $ 22.9
Insurance Claims [Member] |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |
Loss Contingency Accrual | 1.2 | $ 48.2 |
Loss Contingency Accrual, Provision | 0.0 | 1.3 |
Loss Contingency Accrual, Provision Adjustment | (0.1) | (30.7) |
Loss Contingency Accrual, Payments | 0.0 | (11.9) |
Loss Contingency Accrual | $ 1.1 | $ 6.9 |

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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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- Definition Amount of loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details
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- Definition Amount of cash outflow reducing loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=124440162&loc=d3e12053-110248 + Details
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