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Employee Benefit Plans (Details 3)
12 Months Ended
Dec. 28, 2012
Dec. 30, 2011
Swiss Plan [Member]
   
Discount rate 2.00% 2.50%
Salary increases 2.00% 3.00%
Expected return on plan assets 3.00% 3.35%
Expected average remaining working lives in years 10 years 3 months 18 days 10 years 7 months 6 days
Japan Plan [Member]
   
Discount rate 0.80% 0.70%
Salary increases 3.00% 2.00%
Expected return on plan assets 0.00% 0.00%
Expected average remaining working lives in years 8 years 10 months 17 days 8 years 7 months 10 days