Summary of significant accounting policies - Additional Information (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jun. 27, 2025 |
Jun. 28, 2024 |
Jun. 30, 2023 |
|
| Accounting Policies [Line Items] | |||
| Service revenues | $ 174.8 | $ 122.6 | $ 116.2 |
| Minimum | |||
| Accounting Policies [Line Items] | |||
| Product warranty term | 1 year | ||
| Maximum | |||
| Accounting Policies [Line Items] | |||
| Product warranty term | 5 years | ||