Quarterly report pursuant to Section 13 or 15(d)

Mortgage Servicing Rights, at Fair Value - Summary of Servicing Portfolio and its Activities (Detail)

v3.22.2.2
Mortgage Servicing Rights, at Fair Value - Summary of Servicing Portfolio and its Activities (Detail) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2022
Dec. 31, 2021
Servicing Assets at Fair Value [Line Items]    
Servicing rights $ 8,774,016 $ 39,299,416
Weighted average interest rate (in percent) 3.55% 3.03%
Fannie Mae/Freddie Mac    
Servicing Assets at Fair Value [Line Items]    
Servicing rights $ 7,207,398 $ 37,079,995
Ginnie Mae    
Servicing Assets at Fair Value [Line Items]    
Servicing rights 535,952 1,109,962
Private investors    
Servicing Assets at Fair Value [Line Items]    
Servicing rights $ 1,030,666 $ 1,109,459