Fair Value Of Assets And Liabilities (Summary Of Differences Between The Fair Value Carrying Amount Of Mortgages Held-For-Sale And Aggregate Unpaid Principal Amount) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2011
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	$ 224,635	$ 217,320
Aggregate Unpaid Principal [Member] | Loans Held For Sale Reported At Fair Value [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	330,900	294,411
Nonaccrual loans	92,831	84,216
Loans 90 days or more past due and still accruing	21,329	27,260
Fair Value Carrying Amount Less Aggregate Unpaid Principal [Member] | Loans Held For Sale Reported At Fair Value [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	(106,265)	(77,091)
Nonaccrual loans	(49,433)	(44,038)
Loans 90 days or more past due and still accruing	(10,848)	(15,055)
Carrying Reported Amount Fair Value Disclosure [Member] | Loans Held For Sale Reported At Fair Value [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	224,635	217,320
Nonaccrual loans	43,398	40,178
Loans 90 days or more past due and still accruing	$ 10,481	$ 12,205