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				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Trading Account Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 6,421		$ 15,877		$ 7,200		$ 17,992
Net income	191		1,944		149		4,474
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	(489)		(2,102)		(1,070)		(6,747)
Net transfers into/(out of) Level 3, assets	0		0		0		0
Ending Balance	6,123		15,719		6,123		15,719
Net unrealized gains/(losses) included in net income	191	[1]	(1,540)	[1]	225	[1]	3,127	[1]
Loans Held For Sale [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	232,487		235,080		230,456		221,094
Net income	41,757		(1,805)		51,158		(3,940)
Other comprehensive income	0		0		0		0
Purchases, assets	522		12,338		5,104		49,847
Issuances, assets	0		0		0		0
Sales, assets	(236,975)		0		(236,975)		0
Settlements, assets	(5,967)		(11,390)		(14,767)		(25,990)
Net transfers into/(out of) Level 3, assets	(381)	[2]	(4,463)	[2]	(3,533)	[3]	(11,251)	[3]
Ending Balance	31,443		229,760		31,443		229,760
Net unrealized gains/(losses) included in net income	1,828	[1]	(1,805)	[1]	1,828	[1]	(3,940)	[1]
Investment Portfolio [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	3,561		4,354		3,826		5,253
Net income	0		0		0		0
Other comprehensive income	(16)		(17)		(48)		(93)
Purchases, assets	0		0		0		0
Issuances, assets	0		0		0		0
Sales, assets	0		0		0		0
Settlements, assets	(116)		(309)		(349)		(1,132)
Net transfers into/(out of) Level 3, assets	0		0		0		0
Ending Balance	3,429		4,028		3,429		4,028
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	2,300		4,300		4,300		4,300
Net income	(995)		0		(2,995)		0
Other comprehensive income	0		0		0		0
Purchases, assets	0		0		0		0
Issuances, assets	0		0		0		0
Sales, assets	(5)		0		(5)		0
Settlements, assets	(1,300)		0		(1,300)		0
Net transfers into/(out of) Level 3, assets	0		0		0		0
Ending Balance	0		4,300		0		4,300
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	3,197		113,853		72,793		114,311
Net income	19		8,932		1,265		20,267
Other comprehensive income	0		0		0		0
Purchases, assets	0		0		0		0
Issuances, assets	0		0		0		0
Sales, assets	(152)		0		(70,071)		0
Settlements, assets	(184)		(6,099)		(1,107)		(17,892)
Net transfers into/(out of) Level 3, assets	0		0		0		0
Ending Balance	2,880		116,686		2,880		116,686
Net unrealized gains/(losses) included in net income	17	[1]	9,107	[1]	50	[1]	20,424	[1]
Net Derivative Liabilities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	(4,725)		(2,195)		(2,915)		(2,175)
Net income	(3,236)		(871)		(5,678)		(1,522)
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		953		952
Net transfers in/(out) level 3, liabilities	0		0		0		0
Ending Balance	(7,640)		(2,745)		(7,640)		(2,745)
Net unrealized gains/(losses) included in other expense	(3,236)	[4]	(871)	[4]	(5,678)	[4]	(1,523)	[4]
Other Short Term Borrowings [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance			(12,349)				(11,156)
Net income			634				(559)
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			(11,715)				(11,715)
Net unrealized gains/(losses) included in net income			$ 634	[1]			$ (559)	[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] 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).

[4] Included in Other expense.