Pension, Profit Sharing & Other Post-Retirement Benefits - Narrative (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended					12 Months Ended		3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Defined Benefit [Member]	Dec. 31, 2012 Foreign Pension Plans, Defined Benefit [Member] fund	Dec. 31, 2012 Post- Retirement Health Benefits [Member]	Dec. 31, 2011 Post- Retirement Health Benefits [Member]	Mar. 14, 2013 Subsequent Event [Member] Growth Investments [Member] Foreign Pension Plans, Defined Benefit [Member]	Mar. 14, 2013 Subsequent Event [Member] Bond Investments [Member] Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in Current Fiscal Year				$ 4.3
Pension and profit sharing expense charged to operations	7.1	4.3	3.8
401(k) expense		0.5
Net actuarial loss recognized within accumulated other comprehensive income	24.0	21.0	1.0
Amounts that will be amortized from accumulated other comprehensive income (loss) in 2013	$ 1.0
Number of investment funds used to manage plan assets					2
Target plan asset allocations								60.00%	40.00%
Health care cost trend rate assumed						6.75%	7.50%
Ultimate health care cost trend rate						5.00%