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Commitments and Contingencies (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract] |  |  |
Loss Contingency, Receivable | $ 41.0 |  | $ 37.7
Loan subject to loss-sharing arrangements, aggregate unpaid principal amount | 11,000.0 |  | 9,700.0
Loan loss accrual | 20.7 |  | $ 20.6
Insurance Claims [Member] |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |
Loss Contingency Accrual | 38.1 | $ 43.1 |
Loss Contingency Accrual, Provision | 5.8 | 0.1 |
Loss Contingency Accrual, Provision Adjustment | 0.8 | (4.4) |
Loss Contingency Accrual, Payments | 0.0 | (1.1) |
Loss Contingency Accrual | $ 44.7 | $ 37.7 |

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- Definition Loan loss accrual + 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=121555522&loc=d3e12053-110248 + Details
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