Annual report pursuant to Section 13 and 15(d)

Other Financing Lines of Credit - Summary Of Components of Other Financing Lines of Credit (Detail)

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Other Financing Lines of Credit - Summary Of Components of Other Financing Lines of Credit (Detail) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Line of Credit Facility [Line Items]    
Total Capacity $ 1,511,575  
Outstanding borrowings 928,479 $ 1,327,634
Reverse Lines    
Line of Credit Facility [Line Items]    
Total Capacity 1,442,867  
Outstanding borrowings 870,136 983,410
Reverse Lines | April 2024 - October 2026, First Lien Mortgages    
Line of Credit Facility [Line Items]    
Total Capacity 982,500  
Outstanding borrowings 432,918 584,658
Reverse Lines | Various Maturities, Mortgage Related Assets    
Line of Credit Facility [Line Items]    
Total Capacity 360,367  
Outstanding borrowings 344,367 320,715
Reverse Lines | October 2027, MSR    
Line of Credit Facility [Line Items]    
Total Capacity 70,000  
Outstanding borrowings 69,231 33,036
Reverse Lines | October 2024, Unsecuritized Tails    
Line of Credit Facility [Line Items]    
Total Capacity 30,000  
Outstanding borrowings 23,620 45,001
Mortgage Lines    
Line of Credit Facility [Line Items]    
Total Capacity 48,708  
Outstanding borrowings 38,343 139,225
Mortgage Lines | Various Maturities, Mortgage Related Assets    
Line of Credit Facility [Line Items]    
Total Capacity 36,208  
Outstanding borrowings 36,208 37,604
Mortgage Lines | October 2024, First Lien Mortgages    
Line of Credit Facility [Line Items]    
Total Capacity 12,500  
Outstanding borrowings 2,135 83,814
Mortgage Lines | No Maturity, Home Improvement Consumer Loans    
Line of Credit Facility [Line Items]    
Total Capacity 0  
Outstanding borrowings 0 7,495
Mortgage Lines | No Maturity, MSR    
Line of Credit Facility [Line Items]    
Total Capacity 0  
Outstanding borrowings 0 10,312
Commercial Lines    
Line of Credit Facility [Line Items]    
Total Capacity 20,000  
Outstanding borrowings 20,000 204,999
Commercial Lines | July 2024, Mortgage Related Assets    
Line of Credit Facility [Line Items]    
Total Capacity 20,000  
Outstanding borrowings 20,000 12,500
Commercial Lines | No Maturity, First Lien Mortgages    
Line of Credit Facility [Line Items]    
Total Capacity 0  
Outstanding borrowings 0 159,938
Commercial Lines | No Maturity, Encumbered Agricultural Loans    
Line of Credit Facility [Line Items]    
Total Capacity 0  
Outstanding borrowings 0 7,561
Commercial Lines | No Maturity, Second Lien Mortgages    
Line of Credit Facility [Line Items]    
Total Capacity 0  
Outstanding borrowings $ 0 $ 25,000