Contingencies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended				12 Months Ended			36 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008	Dec. 31, 2011 Single Incident [Member]	Dec. 31, 2010 Single Incident [Member]	Dec. 31, 2009 Single Incident [Member]	Dec. 31, 2011 Cumulative Trauma [Member]	Dec. 31, 2011 Uninsured Cumulative Trauma [Member]	Dec. 31, 2010 Uninsured Cumulative Trauma [Member]	Dec. 31, 2009 Uninsured Cumulative Trauma [Member]
Loss Contingencies [Line Items]
Reserves for product liability claims					$ 4.7	$ 5.2
Total product liability and defense costs, 3 years ended					1.5	0.2	0.5	102.7
Number of lawsuits	2,321	1,900	2,480	2,550
Minimum number of insurance carriers	20
Insurance receivables	112.1	89.0	91.7	60.6
Uninsured product liability losses									$ 1.1	$ 0.2	$ 1.7