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 $)					6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2013 First Liens [Member]		Jun. 30, 2012 First Liens [Member]		Jun. 30, 2013 Second Liens [Member]		Jun. 30, 2012 Second Liens [Member]		Jun. 30, 2013 Home Equity [Member]		Jun. 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	$ 113,853,000	$ 114,311,000	$ 129,291,000	$ 144,069,000	$ 111,076,000		$ 126,085,000		$ 172,000		$ 215,000		$ 2,605,000		$ 2,991,000
Weighted average life (in years)					4 years 4 months		3 years 11 months		3 years 5 months		2 years 11 months		3 years 4 months		2 years 10 months
Annual prepayment rate					19.10%		21.40%		30.40%		26.00%		30.30%		26.60%
Annual prepayment rate, Impact on fair value of 10% adverse change					(5,008,000)		(6,698,000)		(11,000)		(14,000)		(139,000)		(179,000)
Annual prepayment rate, Impact on fair value of 20% adverse change					(9,593,000)		(12,792,000)		(21,000)		(26,000)		(268,000)		(344,000)
Annual discount rate on servicing cash flows					11.70%		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					(3,198,000)		(3,486,000)		(5,000)		(6,000)		(80,000)		(93,000)
Annual discount rate on servicing cash flows, Impact on fair value of 20% adverse change					(6,200,000)		(6,765,000)		(9,000)		(11,000)		(155,000)		(181,000)
Annual cost to service (per loan)					118	[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					(2,530,000)		(3,014,000)		(4,000)		(5,000)		(40,000)		(46,000)
Annual cost to service (per loan), Impact on fair value of 20% adverse change					(5,043,000)		(6,007,000)		(8,000)		(10,000)		(81,000)		(91,000)
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					(1,064,000)		(824,000)		0		0		0		0
Annual earnings on escrow, Impact on fair value of 20% adverse change					$ (2,128,000)		$ (1,648,000)		$ 0		$ 0		$ 0		$ 0

[1] Amounts represent market participant based assumptions.