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Commitments and Contingencies (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 0 Months Ended
Sep. 29, 2012
Oct. 01, 2011
Sep. 29, 2012
Minimum
Sep. 29, 2012
Maximum
Apr. 02, 2012
Pennsylvania legal matter
Oct. 01, 2011
Pennsylvania legal matter
Changes in warranty reserve            
Balance as of beginning of period $ 8.1 $ 7.9        
Provision for warranty 1.9 2.6        
Utilization of reserve (1.3) (2.5)        
Adjustments related to pre-existing warranties (including changes in estimates) (1.1) (0.4)        
Balance as of end of period 7.6 7.6        
Tax Matters            
Range of estimated potential tax liability     0 34.2    
Product Warranties            
Warranty Term for most products     3 months 1 year    
Legal Proceedings            
Accrued legal obligations           7.4
Settlement value         $ 7.9