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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013
Income Taxes [Abstract]
One-time tax benefit due to retroactive enactment of the American Taxpayer Relief Act of 2012	$ 1,330
Decrease in liabilities for unrecognized tax benefits	$ 749

The component of income tax expense representing amounts paid or payable (or refundable) which are classified as "income taxes" as determined by applying the provisions of enacted tax law to other than the taxable Income or Loss from continuing operations for the period. Items affecting income taxes and required to be disclosed, but not included elsewhere, would also be designated as "Other".

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