Pension, Profit Sharing & Other Post-Retirement Benefits (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Pension and profit sharing expense charged to operations	$ 2.2	$ 1.7
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in Current Fiscal Year	4.3
Contributions by employer	0.3
Net periodic benefit cost (income)	0.3	0.4
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost (income)	$ 0	$ 0