XML 47 R35.htm IDEA: XBRL DOCUMENT v3.21.2
Warehouse Receivables & Warehouse Lines of Credit - Summary of Warehouse Lines of Credit in Place (Detail)
9 Months Ended
Sep. 30, 2021
USD ($)
Oct. 18, 2021
USD ($)
Jun. 30, 2021
USD ($)
Jan. 18, 2021
USD ($)
Jan. 15, 2021
USD ($)
Dec. 31, 2020
USD ($)
Oct. 19, 2020
USD ($)
Sep. 22, 2020
USD ($)
Aug. 04, 2020
USD ($)
Jul. 01, 2020
USD ($)
Jun. 28, 2019
USD ($)
borrowing
Short-term Debt [Line Items]                      
Carrying Value $ 1,383,772,000         $ 1,383,964,000          
Warehouse Agreement Borrowings                      
Short-term Debt [Line Items]                      
Maximum Facility Size 3,250,000,000         3,500,000,000          
Carrying Value 1,383,772,000         1,383,964,000          
Warehouse Agreement Borrowings | JP Morgan | JP Morgan Chase Bank, N.A. (JP Morgan), Pricing                      
Short-term Debt [Line Items]                      
Maximum Facility Size 985,000,000     $ 985,000,000   1,585,000,000 $ 1,585,000,000        
Carrying Value $ 734,815,000         561,726,000          
Line of credit over LIBOR rate 1.60%                    
Warehouse Agreement Borrowings | JP Morgan | JP Morgan Chase Bank, N.A. (JP Morgan), Pricing | Subsequent Event                      
Short-term Debt [Line Items]                      
Maximum Facility Size   $ 1,335,000,000                  
Warehouse Agreement Borrowings | JP Morgan | JP Morgan, Pricing                      
Short-term Debt [Line Items]                      
Maximum Facility Size $ 15,000,000         15,000,000          
Carrying Value $ 3,003,000         0          
Line of credit over LIBOR rate 2.75%                    
Warehouse Agreement Borrowings | Fannie Mae ASAP Program | Fannie Mae Multifamily ASAP Program, Pricing                      
Short-term Debt [Line Items]                      
Maximum Facility Size $ 650,000,000       $ 650,000,000 450,000,000          
Carrying Value $ 31,485,000         132,692,000          
Line of credit over LIBOR rate 1.45%                    
Line of credit, LIBOR floor rate 0.25%                    
Warehouse Agreement Borrowings | TD Bank | TD Bank, Pricing                      
Short-term Debt [Line Items]                      
Maximum Facility Size $ 800,000,000         800,000,000       $ 400,000,000  
Carrying Value $ 222,311,000         401,849,000          
Line of credit over LIBOR rate 1.30%                    
Revolving credit facility $ 400,000,000                    
Warehouse Agreement Borrowings | Bank of America (BofA) | Bank of America, Pricing                      
Short-term Debt [Line Items]                      
Maximum Facility Size 350,000,000         350,000,000          
Carrying Value $ 265,368,000         175,862,000          
Line of credit over LIBOR rate 1.30%                    
Line of credit, LIBOR floor rate 0.30%                    
Warehouse Agreement Borrowings | Bank of America (BofA) | Bank of America, Pricing | Sublimit Borrowing Agreement                      
Short-term Debt [Line Items]                      
Maximum Facility Size $ 100,000,000                    
Warehouse Agreement Borrowings | Bank of America (BofA) | BofA, pricing                      
Short-term Debt [Line Items]                      
Maximum Facility Size 250,000,000   $ 250,000,000     0          
Carrying Value $ 0         0          
Line of credit over LIBOR rate 1.30%                    
Line of credit, LIBOR floor rate 0.30%                    
Warehouse Agreement Borrowings | MUFG Union Bank, N.A. (Union Bank) | MUFG Union Bank, N.A. (Union Bank), Pricing                      
Short-term Debt [Line Items]                      
Maximum Facility Size $ 200,000,000         300,000,000         $ 200,000,000
Carrying Value $ 126,790,000         $ 111,835,000          
Line of credit over LIBOR rate 1.30%                    
Revolving credit facility               $ 100,000,000      
Additional line of credit                 $ 100,000,000   $ 150,000,000
Maximum number of additional borrowings within 12 consecutive months | borrowing                     3