Loan Sales And Securitizations (Schedule Of Sensitivity Of Fair Value Of Retained Or Purchased MSR Immediate 10 Percent And 20 Percent Adverse Changes In Assumptions) (Details) (USD $)					9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2013 First Liens [Member]		Sep. 30, 2012 First Liens [Member]		Sep. 30, 2013 Second Liens [Member]		Sep. 30, 2012 Second Liens [Member]		Sep. 30, 2013 Home Equity [Member]		Sep. 30, 2012 Home Equity [Member]
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Fair value of retained interests	$ 116,686,000	$ 114,311,000	$ 120,537,000	$ 144,069,000	$ 114,017,000		$ 117,440,000		$ 166,000		$ 205,000		$ 2,503,000		$ 2,892,000
Weighted average life (in years)					4 years 5 months		4 years 0 months		3 years 6 months		2 years 11 months		3 years 5 months		2 years 11 months
Annual prepayment rate					18.70%		21.20%		31.40%		26.00%		31.70%		26.70%
Annual prepayment rate, Impact on fair value of 10% adverse change					(5,572,000)		(6,261,000)		(10,000)		(13,000)		(130,000)		(355,000)
Annual prepayment rate, Impact on fair value of 20% adverse change					(10,637,000)		(11,953,000)		(20,000)		(25,000)		(250,000)		(683,000)
Annual discount rate on servicing cash flows					8.40%		11.80%		14.00%		14.00%		18.00%		18.00%
Annual discount rate on servicing cash flows, Impact on fair value of 10% adverse change					(2,675,000)		(3,253,000)		(4,000)		(6,000)		(76,000)		(191,000)
Annual discount rate on servicing cash flows, Impact on fair value of 20% adverse change					(5,221,000)		(6,314,000)		(9,000)		(11,000)		(148,000)		(370,000)
Annual cost to service (per loan)					119	[1]	116	[1]	50	[1]	50	[1]	50	[1]	50	[1]
Annual cost to service (per loan), Impact on fair value of 10% adverse change					(2,684,000)		(2,822,000)		(4,000)		(5,000)		(39,000)		(96,000)
Annual cost to service (per loan), Impact on fair value of 20% adverse change					(5,352,000)		(5,625,000)		(8,000)		(9,000)		(78,000)		(193,000)
Annual earnings on escrow					1.40%		1.40%		0.00%		0.00%		0.00%		0.00%
Annual earnings on escrow, Impact on fair value of 10% adverse change					(1,152,000)		(631,000)		0		0		0		0
Annual earnings on escrow, Impact on fair value of 20% adverse change					$ (2,304,000)		$ (1,263,000)		$ 0		$ 0		$ 0		$ 0

[1] Amounts represent market participant based assumptions.