Severance liabilities - Schedule of Severance Liabilities Recognized in Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 28, 2024	Jun. 30, 2023
Retirement Benefits [Abstract]
Non-current assets	$ 0	$ 138
Non-current liabilities	$ 24,093	$ 22,159

Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant