Quarterly report pursuant to Section 13 or 15(d)

Reverse Mortgage Portfolio Composition - Summary of the Composition and the Remaining UPBs of the Reverse Mortgage Loan Portfolio (Detail)

v3.22.2
Reverse Mortgage Portfolio Composition - Summary of the Composition and the Remaining UPBs of the Reverse Mortgage Loan Portfolio (Detail) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Schedule of serviced reverse mortgage portfolio [Line Items]    
Reverse mortgage loans held for investment, subject to HMBS related obligations $ 10,468,472 $ 9,849,835
Total reverse mortgage loans held for investment 871,671 815,426
Total reverse mortgage loans held for sale 6,053,167 5,165,479
Total serviced reverse mortgage loan portfolio 17,470,281 15,897,205
owned reverse mortgage portfolio    
Schedule of serviced reverse mortgage portfolio [Line Items]    
Total serviced reverse mortgage loan portfolio 17,393,310 15,830,740
Loans reclassified as government guaranteed receivable    
Schedule of serviced reverse mortgage portfolio [Line Items]    
Total serviced reverse mortgage loan portfolio 63,402 48,625
Loans serviced for others    
Schedule of serviced reverse mortgage portfolio [Line Items]    
Total serviced reverse mortgage loan portfolio 13,569 17,840
Non Performing HECM Buyouts    
Schedule of serviced reverse mortgage portfolio [Line Items]    
Total reverse mortgage loans held for investment, subject to nonrecourse debt 603,189 590,729
Non-agency reverse mortgages    
Schedule of serviced reverse mortgage portfolio [Line Items]    
Total reverse mortgage loans held for sale 5,158,345 4,285,661
Performing HECM buyouts    
Schedule of serviced reverse mortgage portfolio [Line Items]    
Total reverse mortgage loans held for sale 291,633 289,089
Non-agency reverse mortgages    
Schedule of serviced reverse mortgage portfolio [Line Items]    
Total reverse mortgage loans held for investment 534,866 432,144
Loans not securitized    
Schedule of serviced reverse mortgage portfolio [Line Items]    
Total reverse mortgage loans held for investment [1] 230,346 266,723
Unpoolable loans    
Schedule of serviced reverse mortgage portfolio [Line Items]    
Total reverse mortgage loans held for investment [2] 97,939 104,551
Unpoolable tails    
Schedule of serviced reverse mortgage portfolio [Line Items]    
Total reverse mortgage loans held for investment $ 8,520 $ 12,008
[1] Loans not securitized represent primarily newly originated loans.
[2] Unpoolable loans represent primarily loans that have reached 98% of their MCA.