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Employee Benefit Plans (Details 7) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Defined contribution employee benefit plan for employees located in Switzerland
   
Employee Benefit Plans    
Pension expense $ 6.2 $ 2.8
Employee benefit plan obligations included in other long-term liabilities 8.6 2.8
Defined benefit plan for employees located in France
   
Employee Benefit Plans    
Pension expense 0.3 0.3
Employee benefit plan obligations included in other long-term liabilities $ 1.5 $ 1.1