Retirement Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 29, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)	$ 4.0
Defined benefit plan compensation increase assumption	0.00%
Defined Benefit Plan, Contributions by Employer	11.7	6.5
Defined Benefit Plan, Other Information	9.8	5.8	4.3
Accumulated benefit obligation	169.1	150.0
Expected contribution to defined benefit pension plans	3.0
Current Fiscal Year End Date	--12-29
Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year	$ 0.2

The amounts in accumulated other comprehensive income related to prior service cost or credit expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.

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The aggregate amount in accumulated other comprehensive income expected to be recognized as a component of net periodic benefit cost over the fiscal year that follows the most recent annual statement of financial position presented, including the net gain (loss), net prior service cost or credit, and net transition asset or obligation.

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- Definition

If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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