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Employee Pension and Other Benefit Plans (Details 3) - USD ($)
$ in Millions
12 Months Ended
Jun. 27, 2015
Jun. 28, 2014
Jun. 29, 2013
Asset category      
Total (as a percent) 100.00% 100.00%  
Minimum maturity period for investment in index-linked Gilts 5 years    
Pension Benefit Plans      
Asset category      
Fair value of total plan assets $ 34.8 $ 33.5 $ 25.6
Future Benefit Payments      
2016 5.9    
2017 6.2    
2018 6.1    
2019 6.3    
2020 5.8    
2021-2025 32.8    
Thereafter 30.0    
Total 93.1    
UK pension plan      
Asset category      
Fair value of total plan assets 30.2    
Switzerland pension plan      
Asset category      
Fair value of total plan assets $ 4.6    
Global equity      
Asset category      
Target allocation (as a percent) 38.00% 39.00%  
Fair value of total plan assets $ 13.6 $ 13.0  
Total (as a percent) 39.10% 38.80%  
Fixed income      
Asset category      
Target allocation (as a percent) 39.00% 40.00%  
Fair value of total plan assets $ 13.3 $ 13.3  
Total (as a percent) 38.20% 39.70%  
Other.      
Asset category      
Target allocation (as a percent) 23.00% 21.00%  
Fair value of total plan assets $ 7.5 $ 7.0  
Total (as a percent) 21.60% 20.90%  
Cash      
Asset category      
Fair value of total plan assets $ 0.4 $ 0.2  
Total (as a percent) 1.10% 0.60%  
Quoted Prices in Active Markets for Identical Assets (Level 1)      
Asset category      
Fair value of total plan assets $ 0.4 $ 0.2  
Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash      
Asset category      
Fair value of total plan assets 0.4 0.2  
Significant Other Observable Inputs (Level 2)      
Asset category      
Fair value of total plan assets 34.4 33.3  
Significant Other Observable Inputs (Level 2) | Global equity      
Asset category      
Fair value of total plan assets 13.6 13.0  
Significant Other Observable Inputs (Level 2) | Fixed income      
Asset category      
Fair value of total plan assets 13.3 13.3  
Significant Other Observable Inputs (Level 2) | Other.      
Asset category      
Fair value of total plan assets $ 7.5 $ 7.0