v3.26.1
Business segments and geographic information - Schedule of Total Revenues by Percentage from Individual Customers Representing Ten Percent or More of Total Revenues (Details) - Revenue - Customer Concentration Risk
 12 Months Ended
Jun. 26, 2026
Jun. 27, 2025
Jun. 28, 2024
Cisco Systems, Inc.      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]      
Concentration of risk percentage 19.90% 18.20% 13.40%
NVIDIA Corporation      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]      
Concentration of risk percentage 16.30% 27.60% 35.10%
Nokia Corporation      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]      
Concentration of risk percentage 10.70%    
Amazon.com, Inc.      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]      
Concentration of risk percentage 10.50%