HMBS Related Obligations, at Fair Value - Additional information (Detail) - LoanPools |
6 Months Ended | 12 Months Ended |
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Jun. 30, 2021 |
Dec. 31, 2020 |
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| Home Equity Conversion Mortgage Backed Security Related Obligations At Fair Value [Abstract] | ||
| GNMA loan pools | 1,765 | 1,693 |
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- Definition Home equity conversion mortgage backed security related obligations at fair value. No definition available.
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| X | ||||||||||
- Definition Number of servicing government national mortgage association loan pools. No definition available.
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