Fair Value Of Assets And Liabilities (Summary Of Changes In Level 3 Assets And Liabilities Measured At Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Trading Account Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 6,593		$ 16,459		$ 7,200		$ 17,992
Net income	43		1,608		(42)		2,529
Other comprehensive income	0		0		0		0
Purchases, assets	0		0		1,559		0
Issuances, assets	0		0		0		0
Sales, assets	0		0		(1,715)		0
Settlements, assets	(215)		(2,190)		(581)		(4,644)
Net transfers into/(out of) Level 3, assets	0		0		0		0
Ending Balance	6,421		15,877		6,421		15,877
Net unrealized gains/(losses) included in net income	74	[1]	(1,156)	[1]	34	[1]	1,587	[1]
Loans Held For Sale [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	229,219		232,684		230,456		221,094
Net income	8,214		(2,310)		9,401		(2,135)
Other comprehensive income	0		0		0		0
Purchases, assets	476		19,042		4,582		37,509
Issuances, assets	0		0		0		0
Sales, assets	0		0		0		0
Settlements, assets	(4,607)		(10,372)		(8,800)		(14,600)
Net transfers into/(out of) Level 3, assets	(815)	[2]	(3,964)	[2]	(3,152)	[2]	(6,788)	[2]
Ending Balance	232,487		235,080		232,487		235,080
Net unrealized gains/(losses) included in net income	8,214	[1]	(2,310)	[1]	9,401	[1]	(2,135)	[1]
Investment Portfolio [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	3,682		4,776		3,826		5,253
Net income	0		0		0		0
Other comprehensive income	(15)		(39)		(32)		(76)
Purchases, assets	0		0		0		0
Issuances, assets	0		0		0		0
Sales, assets	0		0		0		0
Settlements, assets	(106)		(383)		(233)		(823)
Net transfers into/(out of) Level 3, assets	0		0		0		0
Ending Balance	3,561		4,354		3,561		4,354
Net unrealized gains/(losses) included in net income	0		0		0		0
Venture Capital Funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	4,300		4,300		4,300		4,300
Net income	(2,000)		0		(2,000)		0
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	0		0		0		0
Net transfers into/(out of) Level 3, assets	0		0		0		0
Ending Balance	2,300		4,300		2,300		4,300
Net unrealized gains/(losses) included in net income	(2,000)	[3]	0		(2,000)	[3]	0
Mortgage Servicing Rights Net [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	4,687		109,102		72,793		114,311
Net income	113		10,502		1,246		11,335
Other comprehensive income	0		0		0		0
Purchases, assets	0		0		0		0
Issuances, assets	0		0		0		0
Sales, assets	(1,400)		0		(69,919)		0
Settlements, assets	(203)		(5,751)		(923)		(11,793)
Net transfers into/(out of) Level 3, assets	0		0		0		0
Ending Balance	3,197		113,853		3,197		113,853
Net unrealized gains/(losses) included in net income	77	[1]	10,391	[1]	150	[1]	11,316	[1]
Net Derivative Liabilities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	(4,945)		(2,050)		(2,915)		(2,175)
Net income	(101)		(466)		(2,442)		(652)
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	321		321		632		632
Net transfers in/(out) level 3, liabilities	0		0		0		0
Ending Balance	(4,725)		(2,195)		(4,725)		(2,195)
Net unrealized gains/(losses) included in other expense	(101)	[4]	(466)	[4]	(2,442)	[4]	(652)	[4]
Other Short Term Borrowings [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance			(10,984)				(11,156)
Net income			(1,365)				(1,193)
Other comprehensive income			0				0
Purchases, liabilities			0				0
Issuances, liabilities			0				0
Sales, liabilities			0				0
Settlements, liabilities			0				0
Net transfers in/(out) level 3, liabilities			0				0
Ending Balance			(12,349)				(12,349)
Net unrealized gains/(losses) included in net income			$ (1,365)	[1]			$ (1,193)	[1]

[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] Represents recognized gains and losses attributable to venture capital investments classified within securities available-for-sale that are included in securities gains/(losses) in noninterest income.

[4] Included in Other expense.