Quarterly report pursuant to Section 13 or 15(d)

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

v3.23.1
Other Financing Lines of Credit - Summary Of Components of Other Financing Lines of Credit (Detail) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Line of Credit Facility [Line Items]    
Total Capacity $ 2,193,614  
Outstanding borrowings 1,113,367 $ 1,327,634
Mortgage Lines    
Line of Credit Facility [Line Items]    
Total Capacity 138,274  
Outstanding borrowings 82,204 139,225
Mortgage Lines | October 2023, First Lien Mortgages    
Line of Credit Facility [Line Items]    
Total Capacity 50,000  
Outstanding borrowings 6,270 83,814
Mortgage Lines | November 2023, Home Improvement Consumer Loans    
Line of Credit Facility [Line Items]    
Total Capacity 50,000  
Outstanding borrowings 37,660 7,495
Mortgage Lines | March 2026, MSR    
Line of Credit Facility [Line Items]    
Total Capacity 0  
Outstanding borrowings 0 10,312
Mortgage Lines | No Maturity, Mortgage Related Assets    
Line of Credit Facility [Line Items]    
Total Capacity 38,274  
Outstanding borrowings 38,274 37,604
Reverse Lines    
Line of Credit Facility [Line Items]    
Total Capacity 1,942,840  
Outstanding borrowings 994,798 983,410
Reverse Lines | No Maturity, Mortgage Related Assets    
Line of Credit Facility [Line Items]    
Total Capacity 372,840  
Outstanding borrowings 362,529 320,715
Reverse Lines | April 2023 - November 2023, First Lien Mortgages    
Line of Credit Facility [Line Items]    
Total Capacity 1,450,000  
Outstanding borrowings 520,794 584,658
Reverse Lines | October 2027, MSR    
Line of Credit Facility [Line Items]    
Total Capacity 70,000  
Outstanding borrowings 61,475 33,036
Reverse Lines | May 2023, Unsecurized Tails    
Line of Credit Facility [Line Items]    
Total Capacity 50,000  
Outstanding borrowings $ 50,000 $ 45,001
Reverse Lines | May 2023, Unsecurized Tails | Prime Rate    
Line of Credit Facility [Line Items]    
Basis spread on variable rate 0.50% 0.50%
Reverse Lines | May 2023, Unsecurized Tails | Prime Rate, Floor    
Line of Credit Facility [Line Items]    
Basis spread on variable rate 6.00% 6.00%
Commercial Lines    
Line of Credit Facility [Line Items]    
Total Capacity $ 112,500  
Outstanding borrowings 36,365 $ 204,999
Commercial Lines | No Maturity, Encumbered Agricultural Loans    
Line of Credit Facility [Line Items]    
Total Capacity 0  
Outstanding borrowings 0 7,561
Commercial Lines | October 2023 - November 2023, First Lien Mortgages    
Line of Credit Facility [Line Items]    
Total Capacity 100,000  
Outstanding borrowings 23,865 159,938
Commercial Lines | No Maturity, Second Lien Mortgages    
Line of Credit Facility [Line Items]    
Total Capacity 0  
Outstanding borrowings 0 25,000
Commercial Lines | January 2024, Mortgage Related Assets    
Line of Credit Facility [Line Items]    
Total Capacity 12,500  
Outstanding borrowings $ 12,500 $ 12,500