Accounting Policies (Details 4) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Income Taxes
Increase in unrecognized tax benefits	$ 2.8
Reduction in unrecognized tax benefits resulting from voluntary disclosure agreements	1.2
Reduction in unrecognized tax benefits related to federal, state and foreign audit settlements	0.6
Reduction in unrecognized tax benefits related to reduced exposures in Europe	0.6
Amount of expense accrued for penalties and interest worldwide	0.7
Gross unrecognized tax benefits	4.6
Amount of unrecognized tax benefits which, if recognized, would affect the effective tax rate	0.6
Unrecognized tax benefit	3.6
Reconciliation of the beginning and ending amount of unrecognized tax benefits
Balance at the beginning of the period	1.8
Increases related to prior year tax positions	4
Decreases related to prior year tax positions	(0.6)
Settlements	(0.6)
Balance at the end of the period	$ 4.6
Percentage of likelihood of realization that the tax position must exceed in order for the amount to be recognized	0.50
Buildings and improvements | Minimum
Property, plant and equipment
Estimated useful lives of the assets	10 years
Buildings and improvements | Maximum
Property, plant and equipment
Estimated useful lives of the assets	40 years
Machinery and equipment | Minimum
Property, plant and equipment
Estimated useful lives of the assets	3 years
Machinery and equipment | Maximum
Property, plant and equipment
Estimated useful lives of the assets	15 years