Income taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 27, 2024	Sep. 29, 2023	Jun. 28, 2024
Income Tax Disclosure [Abstract]
Liability for uncertain tax positions including accrued interest and penalties	$ 2.0		$ 1.3
Corporate effective income tax rate	4.20%	7.20%
Deferred tax assets, valuation allowance		$ 2.1