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Employee Benefits (Details 3)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011
Projected benefit obligation:
Discount rate	4.24%	5.02%
Average rate of increase in future compensation levels	3.00%	3.00%
Net periodic pension cost
Discount rate	5.02%	5.39%
Average rate of increase in future compensation levels	3.00%	4.00%
Expected long-term rate of return on plan assets	7.85%	8.25%

X

- Definition

The interest rate used to adjust for the time value of money for the plan.

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Expected rate of compensation increases (for pay-related plans).

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