v3.22.4
Loans And Allowance For Credit Losses (Summary Of Troubled Debt Restructured Loans Restructured During the Period By Type Of Concession) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period $ 2,841 $ 1,941
Initial Restructuring    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period 1,782 1,059
Multiple Restructurings    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period 695 432
Bankruptcy    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period 364 450
Residential Core    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period 2,309 1,479
Residential Core | Initial Restructuring    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period 1,447 904
Residential Core | Multiple Restructurings    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period 498 181
Residential Core | Bankruptcy    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period 364 394
Residential Home Today    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period 197 363
Residential Home Today | Initial Restructuring    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period 0 133
Residential Home Today | Multiple Restructurings    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period 197 219
Residential Home Today | Bankruptcy    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period 0 11
Home Equity Loans And Lines Of Credit    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period 335 99
Home Equity Loans And Lines Of Credit | Initial Restructuring    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period 335 22
Home Equity Loans And Lines Of Credit | Multiple Restructurings    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period 0 32
Home Equity Loans And Lines Of Credit | Bankruptcy    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Troubled debt restructured loans restructured in the period $ 0 $ 45