v3.26.1
Employee Retirement Plans - Fair Value Measurement of Plan Assets (Details) - USD ($)
$ in Millions
Jun. 27, 2026
Jun. 28, 2025
Jun. 29, 2024
Foreign Plan      
Assets:      
Fair value of total plan assets $ 17.5 $ 17.8 $ 14.9
Switzerland      
Assets:      
Fair value of total plan assets $ 17.5 $ 19.1  
Switzerland | Global equity      
Assets:      
Target allocation 37.00% 35.00%  
Fair value of total plan assets $ 6.5 $ 6.5  
Percentage of plan asset 37.00% 34.00%  
Switzerland | Fixed income      
Assets:      
Target allocation 25.00% 27.00%  
Fair value of total plan assets $ 4.2 $ 5.1  
Percentage of plan asset 24.00% 27.00%  
Switzerland | Alternative investment      
Assets:      
Target allocation 14.00% 14.00%  
Fair value of total plan assets $ 2.3 $ 2.7  
Percentage of plan asset 13.00% 14.00%  
Switzerland | Cash      
Assets:      
Target allocation 1.00% 1.00%  
Fair value of total plan assets $ 0.3 $ 0.2  
Percentage of plan asset 2.00% 1.00%  
Switzerland | Other assets      
Assets:      
Target allocation 23.00% 23.00%  
Fair value of total plan assets $ 4.2 $ 4.6  
Percentage of plan asset 24.00% 24.00%  
Switzerland | Quoted prices in active markets for identical assets (Level 1)      
Assets:      
Fair value of total plan assets $ 0.3 $ 0.2  
Switzerland | Quoted prices in active markets for identical assets (Level 1) | Global equity      
Assets:      
Fair value of total plan assets 0.0 0.0  
Switzerland | Quoted prices in active markets for identical assets (Level 1) | Fixed income      
Assets:      
Fair value of total plan assets 0.0 0.0  
Switzerland | Quoted prices in active markets for identical assets (Level 1) | Alternative investment      
Assets:      
Fair value of total plan assets 0.0 0.0  
Switzerland | Quoted prices in active markets for identical assets (Level 1) | Cash      
Assets:      
Fair value of total plan assets 0.3 0.2  
Switzerland | Quoted prices in active markets for identical assets (Level 1) | Other assets      
Assets:      
Fair value of total plan assets 0.0 0.0  
Switzerland | Significant other observable inputs (Level 2)      
Assets:      
Fair value of total plan assets 17.2 18.9  
Switzerland | Significant other observable inputs (Level 2) | Global equity      
Assets:      
Fair value of total plan assets 6.5 6.5  
Switzerland | Significant other observable inputs (Level 2) | Fixed income      
Assets:      
Fair value of total plan assets 4.2 5.1  
Switzerland | Significant other observable inputs (Level 2) | Alternative investment      
Assets:      
Fair value of total plan assets 2.3 2.7  
Switzerland | Significant other observable inputs (Level 2) | Cash      
Assets:      
Fair value of total plan assets 0.0 0.0  
Switzerland | Significant other observable inputs (Level 2) | Other assets      
Assets:      
Fair value of total plan assets $ 4.2 $ 4.6