v3.22.4
Income taxes (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Dec. 30, 2022
Dec. 24, 2021
Dec. 30, 2022
Dec. 24, 2021
Jun. 24, 2022
Income Tax Disclosure [Abstract]          
Liability for uncertain tax positions including accrued interest and penalties $ 0.8   $ 0.8   $ 1.6
Corporate effective income tax rate 1.70% 2.40% 1.40% 1.90%