Commitments And Contingencies (Changes To Anticipated Loan Losses) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Changes in loan origination liability [Roll Forward]
Liabilities, beginning of period	$ 124,956	$ 164,280	$ 128,330
Reserves provided	(18,604)us-gaap_LossContingencyAccrualProvision	0us-gaap_LossContingencyAccrualProvision	49,025us-gaap_LossContingencyAccrualProvision
Payments	(48,130)	(39,324)	(13,075)
Liabilities, end of period	$ 58,222	$ 124,956	$ 164,280

Amount of loss contingency liability.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

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- Definition

Amount of payments made reducing loss contingency liability.

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- Definition

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

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