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Accrued Liabilities (Accrued Liabilities and Restructuring Accrual) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 29, 2013
Mar. 30, 2012
Dec. 31, 2012
Payables and Accruals [Abstract]      
Restructuring charges $ 3.1 $ 0.3  
Restructuring reserve 2.0    
Warranty accrual $ 12.1   $ 12.8