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Manufacturing Restructuring Costs - (Details) (Facility closing, USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Facility closing
Restructuring Reserve [RollForward]
Balance at the beginning of the period	$ 3,387	$ 4,086
Accretion of related lease obligations	149	127
Payments	(487)	(466)
Balance at the end of the period	$ 3,049	$ 3,747

- Definition

Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations.

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- Definition

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

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