Quarterly report pursuant to Section 13 or 15(d)

Warehouse Lines of Credit - Additional Information (Details)

v3.21.2
Warehouse Lines of Credit - Additional Information (Details) - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Warehouse Lines of Credit [Line Items]    
Warehouse lines of credit $ 1,907,995,000 $ 2,143,443,000
Line of Credit    
Warehouse Lines of Credit [Line Items]    
Warehouse lines of credit $ 0 $ 0
Warehouse Agreement Borrowings | Line of Credit    
Warehouse Lines of Credit [Line Items]    
Weighted average interest rate 2.30% 2.50%
Cash balances $ 49,800,000 $ 15,600,000