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Commitments and Contingencies Product Liability (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Product Liability Contingency [Line Items]    
Product Warranty Accrual $ 2.3 $ 2.1
Product Warranty Accrual, Warranties Issued 12.0 1.2
Product Warranty Accrual, Payments (0.7) (0.5)
Product Warranty Accrual, Preexisting, Increase (Decrease) (0.1) (0.4)
Product Warranty Accrual, Currency Translation, Increase (Decrease) (0.1) (0.1)
Product Warranty Accrual CLONE $ 13.4 $ 2.3