Fair Value Of Assets And Liabilities (Summary Of Changes In Level 3 Assets And Liabilities Measured At Fair Value) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Trading Account Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		$ 3,057	$ 5,326	$ 4,377	$ 5,642
Net income		55	69	202	239
Other comprehensive income		0	0	0	0
Purchases, assets		0	0	0	0
Issuances, assets		0	0	0	0
Sales, assets		0	0	0	0
Settlements, assets		(286)	(466)	(1,753)	(952)
Net transfers into/(out of) Level 3, assets		0	0	0	0
Ending Balance		2,826	4,929	2,826	4,929
Net unrealized gains/(losses) included in net income	[1]	(5)	69	79	239
Loans Held For Sale [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		26,287	26,700	27,418	27,910
Net income		429	248	771	1,390
Other comprehensive income		0	0	0	0
Purchases, assets		327	324	475	1,178
Issuances, assets		0	0	0	0
Sales, assets		0	0	0	0
Settlements, assets		(1,132)	(329)	(2,497)	(2,819)
Net transfers into/(out of) Level 3, assets	[2]	(173)	(418)	(429)	(1,134)
Ending Balance		25,738	26,525	25,738	26,525
Net unrealized gains/(losses) included in net income	[1]	429	248	771	1,390
Investment Portfolio [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		1,500	3,191	1,500	3,307
Net income		0	0	0	0
Other comprehensive income		0	(14)	0	(28)
Purchases, assets		0	0	0	0
Issuances, assets		0	0	0	0
Sales, assets		0	0	0	0
Settlements, assets		0	(117)	0	(219)
Net transfers into/(out of) Level 3, assets		0	0	0	0
Ending Balance		1,500	3,060	1,500	3,060
Net unrealized gains/(losses) included in net income		0	0	0	0
Mortgage Servicing Rights Net [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		1,725	2,342	1,841	2,517
Net income		31	0	31	0
Other comprehensive income		0	0	0	0
Purchases, assets		0	0	0	0
Issuances, assets		0	0	0	0
Sales, assets		(205)	0	(205)	0
Settlements, assets		(145)	(184)	(261)	(359)
Net transfers into/(out of) Level 3, assets		0	0	0	0
Ending Balance		1,406	2,158	1,406	2,158
Net unrealized gains/(losses) included in net income		0	0	0	0
Net Derivative Liabilities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		(4,620)	(5,005)	(4,810)	(5,240)
Net income		(2,514)	(107)	(2,623)	(164)
Other comprehensive income		0	0	0	0
Purchases, liabilities		0	0	0	0
Issuances, liabilities		0	0	0	0
Sales, liabilities		0	0	0	0
Settlements, liabilities		299	302	598	594
Net transfers in/(out) level 3, liabilities		0	0	0	0
Ending Balance		(6,835)	(4,810)	(6,835)	(4,810)
Net unrealized gains/(losses) included in other expense	[3]	$ (2,514)	$ (107)	$ (2,623)	$ (164)

[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 recurring loans held-for-sale and into real estate acquired by foreclosure (level 3 nonrecurring).

[3] Included in Other expense.