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Commitments And Contingencies (Changes To Anticipated Loan Losses) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Commitments and Contingencies Disclosure [Abstract]
Liabilities, beginning of period	$ 120,711	$ 97,836	$ 128,330	$ 93,057
Reserves provided	0	0	0	19,347
Payments	(2,089)	(3,105)	(9,708)	(17,673)
Liabilities, end of period	$ 118,622	$ 94,731	$ 118,622	$ 94,731

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The carrying amount as of the balance sheet date of the combined total of loss contingency liabilities.

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The payments made in the period which reduced loss contingency liabilities.

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The charge against earnings in the period to increase loss contingency liabilities, net of any adjustments to reduce previously estimated charges.

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