Quarterly report pursuant to Section 13 or 15(d)

Other Financing Lines of Credit - Summary Of Components of other financing lines of credit (Detail)

v3.21.2
Other Financing Lines of Credit - Summary Of Components of other financing lines of credit (Detail) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Line of Credit Facility [Line Items]    
Total Capacity $ 6,312,334  
Outstanding borrowings 3,325,156 $ 2,973,743
Mortgage Line Of Credit [Member]    
Line of Credit Facility [Line Items]    
Total Capacity 3,812,106  
Outstanding borrowings 1,971,157 1,997,464
Reverse Line Of Credit [Member]    
Line of Credit Facility [Line Items]    
Total Capacity 1,738,719  
Outstanding borrowings 1,028,368 767,959
Commercial Lines Of Credit [Member]    
Line of Credit Facility [Line Items]    
Total Capacity 761,509  
Outstanding borrowings $ 325,631 208,320
October 2021 - June 2023 | Mortgage Line Of Credit [Member]    
Line of Credit Facility [Line Items]    
Maturity date October 2021 - June 2023  
Interest rate LIBOR + applicable margin  
Collateral pledge First Lien Mortgages  
Total Capacity $ 3,575,000  
Outstanding borrowings $ 1,783,544 1,997,464
March 2026 | Mortgage Line Of Credit [Member]    
Line of Credit Facility [Line Items]    
Maturity date March 2026  
Interest rate LIBOR + applicable margin  
Collateral pledge MSRs  
Total Capacity $ 150,000  
Outstanding borrowings $ 117,736 0
December 2021 - November 2022 | Mortgage Line Of Credit [Member]    
Line of Credit Facility [Line Items]    
Maturity date December 2021 - November 2022  
Interest rate LIBOR + applicable margin  
Collateral pledge Mortgage Related Assets  
Total Capacity $ 87,106  
Outstanding borrowings $ 69,877 0
October 2021 - August 2022 | Reverse Line Of Credit [Member]    
Line of Credit Facility [Line Items]    
Maturity date October 2021 - August 2022  
Interest rate LIBOR + applicable margin  
Collateral pledge First Lien Mortgages  
Total Capacity $ 1,200,000  
Outstanding borrowings $ 620,418 477,637
April 2022 - September 2023 | Reverse Line Of Credit [Member]    
Line of Credit Facility [Line Items]    
Maturity date April 2022 - September 2023  
Interest rate Bond accrual rate + applicable margin  
Collateral pledge Mortgage Related Assets  
Total Capacity $ 398,719  
Outstanding borrowings $ 278,924 252,880
February 2024 | Reverse Line Of Credit [Member]    
Line of Credit Facility [Line Items]    
Maturity date February 2024  
Interest rate LIBOR + applicable margin  
Collateral pledge MSRs  
Total Capacity $ 90,000  
Outstanding borrowings $ 88,072 0
April 2022 | Reverse Line Of Credit [Member]    
Line of Credit Facility [Line Items]    
Maturity date April 2022  
Interest rate Prime + .50%; 6% floor  
Collateral pledge Unsecuritized Tails  
Total Capacity $ 50,000  
Outstanding borrowings $ 40,954 37,442
February 2022 - November 2023 | Commercial Lines Of Credit [Member]    
Line of Credit Facility [Line Items]    
Maturity date February 2022 - November 2023  
Interest rate LIBOR + applicable margin  
Collateral pledge First Lien Mortgages  
Total Capacity $ 510,000  
Outstanding borrowings $ 149,787 128,134
August 2022 - September 2022 | Commercial Lines Of Credit [Member]    
Line of Credit Facility [Line Items]    
Maturity date August 2022 - September 2022  
Interest rate LIBOR + applicable margin  
Collateral pledge Encumbered Agricultural Loans  
Total Capacity $ 225,000  
Outstanding borrowings $ 152,634 52,300
August 2022 | Commercial Lines Of Credit [Member]    
Line of Credit Facility [Line Items]    
Maturity date August 2022  
Interest rate 10%  
Collateral pledge Second Lien Mortgages  
Total Capacity $ 25,000  
Outstanding borrowings $ 21,701 21,475
Mortgage Related Assets | Commercial Lines Of Credit [Member]    
Line of Credit Facility [Line Items]    
Maturity date N/A  
Interest rate LIBOR + applicable margin  
Collateral pledge Mortgage Related Assets  
Total Capacity $ 1,509  
Outstanding borrowings $ 1,509 $ 6,411