Quarterly report pursuant to Section 13 or 15(d)

HMBS Related Obligations, at Fair Value - Summary of HMBS Related Obligations, At Fair Value (Detail)

v3.22.2.2
HMBS Related Obligations, at Fair Value - Summary of HMBS Related Obligations, At Fair Value (Detail) - Home Equity Conversion Mortgage Backed Security - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2022
Dec. 31, 2021
Home Equity Conversion Mortgage Backed Security Related to Obligations At Fair Value [Line Items]    
Ginnie Mae loan pools - UPB $ 10,587,475 $ 9,849,835
Fair value adjustments 197,366 572,523
Total HMBS related obligations, at fair value $ 10,784,841 $ 10,422,358
Weighted average remaining life (in years) 3 years 10 months 24 days 4 years 7 months 6 days
Weighted average interest rate 4.10% 2.50%