Fair Value Of Assets And Liabilities (Summary Of Changes In Level 3 Assets And Liabilities Measured At Fair Value) (Details) - USD ($)		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Trading Account Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		$ 4,377,000	$ 5,642,000
Net income		147,000	170,000
Other comprehensive income		0	0
Purchases, assets		0	0
Issuances, assets		0	0
Sales, assets		0	0
Settlements, assets		(1,467,000)	(486,000)
Net transfers into/(out of) Level 3, assets		0	0
Ending Balance		3,057,000	5,326,000
Net unrealized gains/(losses) included in net income	[1]	(115,000)	171,000
Loans Held For Sale [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		27,418,000	27,910,000
Net income		342,000	1,142,000
Other comprehensive income		0	0
Purchases, assets		148,000	854,000
Issuances, assets		0	0
Sales, assets		0	0
Settlements, assets		(1,365,000)	(2,490,000)
Net transfers into/(out of) Level 3, assets	[2]	(256,000)	(716,000)
Ending Balance		26,287,000	26,700,000
Net unrealized gains/(losses) included in net income	[1]	342,000	1,142,000
Investment Portfolio [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		1,500,000	3,307,000
Net income		0	0
Other comprehensive income		0	(14,000)
Purchases, assets		0	0
Issuances, assets		0	0
Sales, assets		0	0
Settlements, assets		0	(102,000)
Net transfers into/(out of) Level 3, assets		0	0
Ending Balance		1,500,000	3,191,000
Net unrealized gains/(losses) included in net income		0	0
Mortgage Servicing Rights Net [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		1,841,000	2,517,000
Net income		0	0
Other comprehensive income		0	0
Purchases, assets		0	0
Issuances, assets		0	0
Sales, assets		0	0
Settlements, assets		(116,000)	(175,000)
Net transfers into/(out of) Level 3, assets		0	0
Ending Balance		1,725,000	2,342,000
Net unrealized gains/(losses) included in net income		0	0
Net Derivative Liabilities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		(4,810,000)	(5,240,000)
Net income		(109,000)	(57,000)
Other comprehensive income		0	0
Purchases, liabilities		0	0
Issuances, liabilities		0	0
Sales, liabilities		0	0
Settlements, liabilities		299,000	292,000
Net transfers in/(out) level 3, liabilities		0	0
Ending Balance		(4,620,000)	(5,005,000)
Net unrealized gains/(losses) included in other expense	[3]	$ (109,000)	$ (57,000)

[1] Primarily included in mortgage banking income on the Consolidated Condensed Statements of Income.

[2] Transfers out of recurring loans held-for-sale level 3 balances reflect movements out of loans held-for-sale and into real estate acquired by foreclosure (level 3 nonrecurring).

[3] Included in Other expense.