Income taxes (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Mar. 31, 2023 |
Mar. 25, 2022 |
Mar. 31, 2023 |
Mar. 25, 2022 |
Jun. 24, 2022 |
|
| Income Tax Disclosure [Abstract] | |||||
| Liability for uncertain tax positions including accrued interest and penalties | $ 0.9 | $ 0.9 | $ 1.6 | ||
| Corporate effective income tax rate | 6.50% | 5.40% | 3.10% | 3.20% | |