Loans And Allowance For Loan Losses (Schedule Of Recorded Investment Of Loan Receivables In Non-Accrual Status) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Sep. 30, 2019
Performing
Financing Receivable, Recorded Investment, Past Due, Nonaccrual Status [Line Items]
Total non-accrual loans	$ 41,079	$ 55,171
Performing Chapter 7 Bankruptcy
Financing Receivable, Recorded Investment, Past Due, Nonaccrual Status [Line Items]
Total non-accrual loans	23,283	25,895
Real Estate Loans
Financing Receivable, Recorded Investment, Past Due, Nonaccrual Status [Line Items]
Total non-accrual loans	57,845	71,265
Real Estate Loans | Residential Core
Financing Receivable, Recorded Investment, Past Due, Nonaccrual Status [Line Items]
Total non-accrual loans	32,960	37,052
Real Estate Loans | Residential Home Today
Financing Receivable, Recorded Investment, Past Due, Nonaccrual Status [Line Items]
Total non-accrual loans	11,231	12,442
Real Estate Loans | Home Equity Loans And Lines Of Credit
Financing Receivable, Recorded Investment, Past Due, Nonaccrual Status [Line Items]
Total non-accrual loans	$ 13,654	$ 21,771