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 $)	Sep. 30, 2014	Sep. 30, 2013
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans held-for-sale	$ 31,443,000	$ 229,760,000
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	49,145,000	379,123,000
Nonaccrual loans	14,893,000	147,116,000
Loans 90 days or more past due and still accruing	4,990,000	19,402,000
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		142,311,000
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	(17,702,000)	(149,363,000)
Nonaccrual loans	(7,151,000)	(78,000,000)
Loans 90 days or more past due and still accruing	(2,305,000)	(10,356,000)
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		3,194,000
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	31,443,000	229,760,000
Nonaccrual loans	7,742,000	69,116,000
Loans 90 days or more past due and still accruing	2,685,000	9,046,000
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		$ 145,505,000