Off-Balance Sheet Finance Receivable Securitization Transactions (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended	12 Months Ended
Mar. 29, 2009	Dec. 31, 2009	Dec. 31, 2009
Off-Balance Sheet Finance Receivable Securitization Transactions [Abstract]
Other-than-temporary impairment charge	$ 17,100	$ 22,240
Expected weighted-average cumulative net credit losses			5.70%

The rate at which principal will not be repaid on securitized financial assets. This is used as a key input and assumption in measuring the fair value of assets or liabilities that relate to a transferor's continuing involvement, if any, as of the date of the latest statement of financial position presented.

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The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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