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, 2017		Jun. 30, 2016		Jun. 30, 2017		Jun. 30, 2016
Trading Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		$ 2,335		$ 3,057		$ 2,573		$ 4,377
Net income		271		55		288		202
Purchases, assets		0		0		0		0
Sales, assets				0				0
Settlements, assets		(142)		(286)		(397)		(1,753)
Net transfers into/(out of) Level 3, assets		0		0		0		0
Ending Balance		2,464		2,826		2,464		2,826
Net unrealized gains/(losses) included in net income		229	[1]	(5)	[1]	202	[2]	79	[2]
SBA - Interest Only Strips
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		0				0
Net income		280				280
Purchases, assets		1,413				1,413
Settlements, assets		(3,317)				(3,317)
Net transfers into/(out of) Level 3, assets		2,787				2,787
Ending Balance		1,163				1,163
Net unrealized gains/(losses) included in net income	[3]	(53)				(53)
Loans Held For Sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		21,221		26,287		21,924		27,418
Net income		410		429		1,332		771
Purchases, assets		43		327		75		475
Sales, assets				0				0
Settlements, assets		(827)		(1,132)		(2,401)		(2,497)
Net transfers into/(out of) Level 3, assets		(260)	[4]	(173)	[4]	(343)	[5]	(429)	[5]
Ending Balance		20,587		25,738		20,587		25,738
Net unrealized gains/(losses) included in net income		410	[1]	429	[1]	1,332	[2]	771	[2]
AFS Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance				1,500				1,500
Net income				0				0
Purchases, assets				0				0
Sales, assets				0				0
Settlements, assets				0				0
Net transfers into/(out of) Level 3, assets				0				0
Ending Balance				1,500				1,500
Net unrealized gains/(losses) included in net income				0				0
Mortgage Servicing Rights Net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance				1,725				1,841
Net income				31				31
Purchases, assets				0				0
Sales, assets				(205)				(205)
Settlements, assets				(145)				(261)
Net transfers into/(out of) Level 3, assets				0				0
Ending Balance				1,406				1,406
Net unrealized gains/(losses) included in net income				0				0
Net Derivative Liabilities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		(5,950)		(4,620)		(6,245)		(4,810)
Net income		(49)		(2,514)		(50)		(2,623)
Purchases, liabilities		0		0		0		0
Sales, liabilities				0				0
Settlements, liabilities		299		299		595		598
Net transfers in/(out) level 3, liabilities		0		0		0		0
Ending Balance		(5,700)		(6,835)		(5,700)		(6,835)
Net unrealized gains/(losses) included in other expense		$ (49)	[6]	$ (2,514)	[6]	$ (50)	[7]	$ (2,623)	[7]

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

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

[3] Primarily included in fixed income on the Consolidated Condensed Statements of Income.

[4] Transfers out of loans held-for-sale level 3 measured on a recurring basis generally reflect movements into real estate acquired by foreclosure (level 3 nonrecurring).

[5] Transfers out of loans held-for-sale level 3 measured on a recurring basis generally reflect movements into real estate acquired by foreclosure (level 3 nonrecurring).

[6] Included in Other expense.

[7] Included in Other expense.