Mortgage Servicing Rights (Summary Of Changes In Capitalized MSR) (Details) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Servicing asset at fair value, amount, beginning balance	$ 207,319	$ 302,611
Adjustment due to adoption of amendments to ASC 810		(2,293)
Reductions due to loan payments	(12,807)	(16,658)
Reductions due to exercise of cleanup calls	(195)
Reductions due to sale		(24,558)
Changes in valuation model inputs or assumptions	(7,418)	(58,366)
Other changes in fair value	59	1,010
Servicing asset at fair value, amount, ending balance	186,958	201,746
First Liens [Member]
Servicing asset at fair value, amount, beginning balance	203,812	296,115
Adjustment due to adoption of amendments to ASC 810		(197)
Reductions due to loan payments	(12,685)	(16,031)
Reductions due to exercise of cleanup calls	(195)
Reductions due to sale		(24,558)
Changes in valuation model inputs or assumptions	(7,418)	(58,366)
Other changes in fair value	16	990
Servicing asset at fair value, amount, ending balance	183,530	197,953
Second Liens [Member]
Servicing asset at fair value, amount, beginning balance	262	1,174
Adjustment due to adoption of amendments to ASC 810		(928)
Reductions due to loan payments	(21)	(16)
Other changes in fair value	10	12
Servicing asset at fair value, amount, ending balance	251	242
HELOC [Member]
Servicing asset at fair value, amount, beginning balance	3,245	5,322
Adjustment due to adoption of amendments to ASC 810		(1,168)
Reductions due to loan payments	(101)	(611)
Other changes in fair value	33	8
Servicing asset at fair value, amount, ending balance	$ 3,177	$ 3,551