Mortgage Servicing Rights - Additional Information (Details) - USD ($) $ in Billions |
9 Months Ended | 12 Months Ended |
|---|---|---|
Sep. 30, 2021 |
Dec. 31, 2020 |
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| Transfers and Servicing [Abstract] | ||
| Mortgage servicing right weighted average life | 5 years 8 months 12 days | 5 years 1 month 6 days |
| Unpaid principal balance of mortgage loans serviced | $ 69.2 | $ 60.8 |
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- Definition Weighted average life of securitized assets regardless of when the transfer occurred, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition This is the sum of principal amount outstanding for both securitized and unsecuritized loans of all types. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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