Mortgage Servicing Rights (Summary Of Changes In Capitalized MSR) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2014	Dec. 31, 2013
Participating Mortgage Loans [Line Items]
Fair value, beginning balance	$ 114,311	$ 2,880	$ 72,793
Reductions due to loan payments	(17,397)
Reductions due to exercise of cleanup calls	(495)
Changes in fair value due to:
Changes in valuation model inputs or assumptions	20,267
Other changes in fair value	0
Fair value, ending balance	116,686	2,880	72,793
First Liens [Member]
Participating Mortgage Loans [Line Items]
Fair value, beginning balance	111,314
Reductions due to loan payments	(16,980)
Reductions due to exercise of cleanup calls	(495)
Changes in fair value due to:
Changes in valuation model inputs or assumptions	20,267
Other changes in fair value	(89)
Fair value, ending balance	114,017
Second Liens [Member]
Participating Mortgage Loans [Line Items]
Fair value, beginning balance	196
Reductions due to loan payments	(75)
Reductions due to exercise of cleanup calls	0
Changes in fair value due to:
Changes in valuation model inputs or assumptions	0
Other changes in fair value	45
Fair value, ending balance	166
Home Equity [Member]
Participating Mortgage Loans [Line Items]
Fair value, beginning balance	2,801
Reductions due to loan payments	(342)
Reductions due to exercise of cleanup calls	0
Changes in fair value due to:
Changes in valuation model inputs or assumptions	0
Other changes in fair value	44
Fair value, ending balance	$ 2,503