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, 2013	Sep. 30, 2012
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	$ 229,760	$ 224,635
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	379,123	330,900
Nonaccrual loans	147,116	92,831
Loans 90 days or more past due and still accruing	19,402	21,329
Aggregate Unpaid Principal [Member] | Trading Loans Reported At Fair Value [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	142,311
Nonaccrual loans	0
Loans 90 days or more past due and still accruing	0
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	(149,363)	(106,265)
Nonaccrual loans	(78,000)	(49,433)
Loans 90 days or more past due and still accruing	(10,356)	(10,848)
Fair Value Carrying Amount Less Aggregate Unpaid Principal [Member] | Trading Loans Reported At Fair Value [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	3,194
Nonaccrual loans	0
Loans 90 days or more past due and still accruing	0
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	229,760	224,635
Nonaccrual loans	69,116	43,398
Loans 90 days or more past due and still accruing	9,046	10,481
Carrying Reported Amount Fair Value Disclosure [Member] | Trading Loans Reported At Fair Value [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	145,505
Nonaccrual loans	0
Loans 90 days or more past due and still accruing	$ 0