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Pension and Postretirement Plans (Details 6) (Periodic Cost [Member])	12 Months Ended
	Dec. 31, 2011	Jan. 02, 2011	Jan. 03, 2010
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.60%	6.00%	5.75%
Expected return on plan assets	6.50%	6.50%	6.50%
Rate of compensation increase	4.00%	4.00%	4.00%
Supplemental Executive Retirement Plan (SERP) [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.60%	6.00%	5.75%
Expected return on plan assets	0.00%	0.00%	0.00%
Rate of compensation increase	4.00%	4.00%	4.00%

An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

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