v3.26.1
Pension and retirement plans (Pension Plans) (Details) - USD ($)
$ in Thousands
12 Months Ended
Jul. 03, 2027
Jun. 27, 2026
Jun. 28, 2025
Jun. 29, 2024
Changes in benefit obligations:        
Benefit obligations at beginning of year $ 468,683 $ 473,980 $ 470,843  
Service cost within selling, general and administrative expenses   10,873 11,480 $ 10,252
Interest cost   22,966 24,732 24,579
Actuarial loss   3,898 11,292  
Benefits paid   (43,034) (44,367)  
Benefit obligations at end of year   468,683 473,980 470,843
Change in plan assets:        
Fair value of plan assets at beginning of year $ 484,068 477,558 480,705  
Actual return on plan assets   41,544 33,220  
Benefits paid   (43,034) (44,367)  
Contributions   8,000 8,000  
Fair value of plan assets at end of year   484,068 477,558 $ 480,705
Funded status of the plan recognized as a non-current asset   15,385 3,578  
Amounts recognized in accumulated other comprehensive income:        
Unrecognized net actuarial losses   193,061 199,856  
Unamortized prior service cost   12 16  
Amount recognized in accumulated other comprehensive income   193,073 199,872  
Other changes in plan assets and benefit obligations recognized in other comprehensive income:        
Net actuarial loss   4,565 17,584  
Amortization of net actuarial losses   (11,360) (5,222)  
Amortization of prior service costs   (4) (4)  
Other changes in plan assets and benefit obligations recognized in other comprehensive income   6,799 $ (12,358)  
Unrecognized actuarial losses expected to be recognized in net periodic pension cost during following year   $ 17,500    
Weighted average assumptions used to calculate actuarial present values of benefit obligations        
Discount rate   5.50% 5.50%  
Weighted average assumptions used to determine net benefit costs        
Discount rate   5.30% 5.50%  
Expected return on plan assets 8.00% 8.00% 7.50%  
Rate of compensation increase   3.50% 3.50%  
Interest crediting rate   4.30% 4.30%