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Commitments And Contingencies (Changes To Anticipated Loan Losses) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Commitments and Contingencies Disclosure [Abstract]
Liabilities, beginning of period				$ 128,330	$ 93,057	$ 105,914
Reserves provided	49,000	40,000	19,300	49,025	59,349	16,856
Payments				(13,075)	(24,076)	(29,713)
Liabilities, end of period	$ 164,280	$ 128,330		$ 164,280	$ 128,330	$ 93,057

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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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