Quarterly report pursuant to Section 13 or 15(d)

HMBS Related Obligations, at Fair Value - Additional information (Detail)

v3.22.1
HMBS Related Obligations, at Fair Value - Additional information (Detail) - LoanPools
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Home Equity Conversion Mortgage Backed Security Related Obligations At Fair Value [Abstract]    
Ginnie Mae loan pools 1,896 1,849