v3.25.2
Loans And Allowance For Credit Losses (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Sep. 30, 2024
Loan Portfolio [Line Items]          
Accrued interest receivable $ 60,434   $ 60,434   $ 59,398
Loans, net 15,595,997   15,595,997   15,322,059
Loans classified as mortgage loans held for sale 30,977   30,977   17,775
Transfer of loans from held for sale to held for investment 0   1,327 $ 771  
Real Estate Loans          
Loan Portfolio [Line Items]          
Loans in process of foreclosure 10,759   10,759   10,527
Loans          
Loan Portfolio [Line Items]          
Accrued interest receivable 58,461   58,461   $ 56,982
Loan Sales In Quarter          
Loan Portfolio [Line Items]          
Principal balance of loans sold $ 63,372 $ 69,420 $ 210,562 190,743  
Residential Core, Home Today and Construction | Florida          
Loan Portfolio [Line Items]          
Residential real estate loans held, percent 17.00%   17.00%   17.00%
Residential Core, Home Today and Construction | Ohio          
Loan Portfolio [Line Items]          
Residential real estate loans held, percent 59.00%   59.00%   58.00%
Home Equity Line of Credit          
Loan Portfolio [Line Items]          
Home equity lines of credit that converted from revolving loans to term loans. $ 5,109 $ 4,392 $ 11,333 $ 6,558  
Home Equity Line of Credit | Florida          
Loan Portfolio [Line Items]          
Residential real estate loans held, percent 22.00%   22.00%   22.00%
Home Equity Line of Credit | Ohio          
Loan Portfolio [Line Items]          
Residential real estate loans held, percent 22.00%   22.00%   23.00%
Home Equity Line of Credit | California          
Loan Portfolio [Line Items]          
Residential real estate loans held, percent 17.00%   17.00%   16.00%
Home Equity Loan | Florida          
Loan Portfolio [Line Items]          
Residential real estate loans held, percent 23.00%   23.00%   25.00%
Home Equity Loan | Ohio          
Loan Portfolio [Line Items]          
Residential real estate loans held, percent 24.00%   24.00%   26.00%
Home Equity Loan | California          
Loan Portfolio [Line Items]          
Residential real estate loans held, percent 18.00%   18.00%   19.00%
Residential Core | Adjustable Rate Residential Mortgage          
Loan Portfolio [Line Items]          
Loans, net $ 4,056,491   $ 4,056,491   $ 4,379,132
Home Today loans Originated After September 2016          
Loan Portfolio [Line Items]          
Loans, net $ 0   $ 0    
Construction/Permanent Loans | LTV 85 Percent | Maximum          
Loan Portfolio [Line Items]          
Loan To Completed Appraised Value, Percentage 85.00%   85.00%