Loan Sales And Securitizations (Schedule Of Cash Flows Related To Loan Sales And Securitizations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Loan Sales And Securitizations [Abstract]
Proceeds from initial sales	$ 54,296		$ 139,202
Servicing fees retained	17,732	[1]	21,492	[1]
Purchases of GNMA guaranteed mortgages	35,031		22,207
Purchases of previously transferred financial assets	66,799	[2]	53,192	[2]
Other cash flows received on retained interests	$ 1,664		$ 2,229

[1] Includes servicing fees on MSR associated with loan sales and purchased MSR.

[2] Includes repurchases of both delinquent and performing loans, foreclosed assets, and make-whole payments for economic losses incurred by purchaser. Also includes buyouts from GSEs in order to facilitate foreclosures.