Quarterly report pursuant to Section 13 or 15(d)

Loans Held for Investment, Subject to HMBS Related Obligations, at Fair Value - Schedule of Reverse Mortgage Loans Held for Investment Subject to HMBS Related Obligations, Fair Value (Detail)

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Loans Held for Investment, Subject to HMBS Related Obligations, at Fair Value - Schedule of Reverse Mortgage Loans Held for Investment Subject to HMBS Related Obligations, Fair Value (Detail) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Loans Held For Investment Subject To HMBS Related Obligations Fair Value [Line Items]    
Loans held for investment, subject to HMBS related obligations—UPB $ 10,109,820 $ 9,849,835
Fair value adjustments 562,332 706,219
Total loans held for investment, subject to HMBS related obligations, at fair value $ 10,672,152 $ 10,556,054