v3.22.4
Loans And Allowance For Credit Losses (Loans Held For Investment) (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Sep. 30, 2022
Loan Portfolio [Line Items]      
Deferred loan expenses, net $ 51,768   $ 50,221
Loans in process (LIP) (59,749)   (72,273)
Allowance for credit losses on loans (74,477)   (72,895)
Loans, net 14,473,495   14,257,067
Loan Sales In Quarter      
Loan Portfolio [Line Items]      
Principal balance of loans sold 19,182 $ 102,006  
Other Loans      
Loan Portfolio [Line Items]      
Loans, gross 3,481   3,263
Real Estate Loans      
Loan Portfolio [Line Items]      
Loans, gross 14,552,472   14,348,751
Real Estate Loans | Residential Core      
Loan Portfolio [Line Items]      
Loans, gross 11,687,740   11,539,859
Real Estate Loans | Residential Home Today      
Loan Portfolio [Line Items]      
Loans, gross 51,404   53,255
Real Estate Loans | Home Equity Loans And Lines Of Credit      
Loan Portfolio [Line Items]      
Loans, gross 2,699,513   2,633,878
Real Estate Loans | Construction      
Loan Portfolio [Line Items]      
Loans, gross $ 113,815   $ 121,759