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Fair value of financial instruments - Schedule of Financial Instruments Measured at Fair Value on Recurring Basis (Details) $ in Thousands, $ in Millions	Jun. 26, 2026 USD ($)	Jun. 26, 2026 CAD ($)	Jun. 27, 2025 USD ($)	Jun. 27, 2025 CAD ($)
Assets
Derivative assets - current portion	$ 0		$ 2,961
Total	642,845		641,963
Liabilities
Derivative liabilities - current portion	(9,084)		(105)
Total	(9,084)		(105)
Foreign currency forward contracts
Liabilities
Derivative assets, notional amount	1,000		130,000
Derivative liabilities, notional amount	279,000		35,000
Foreign currency forward contracts \| Canada, Dollars
Liabilities
Derivative assets, notional amount				$ 0.5
Derivative liabilities, notional amount		$ 0.3
Cash equivalents
Assets
Marketable securities	114,501		11,183
Certificates of deposit and time deposits
Assets
Marketable securities	44,250		145,752
Corporate debt securities
Assets
Marketable securities	200,637		189,973
U.S. agency and U.S. Treasury securities
Assets
Marketable securities	$ 283,457		$ 292,094
Level 1
Assets
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Other current assets	Other current assets	Other current assets	Other current assets
Derivative assets - current portion	$ 0		$ 0
Total	$ 0		$ 0
Liabilities
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses	Accrued expenses	Accrued expenses	Accrued expenses
Derivative liabilities - current portion	$ 0		$ 0
Total	0		0
Level 1 \| Cash equivalents
Assets
Marketable securities	0		0
Level 1 \| Certificates of deposit and time deposits
Assets
Marketable securities	0		0
Level 1 \| Corporate debt securities
Assets
Marketable securities	0		0
Level 1 \| U.S. agency and U.S. Treasury securities
Assets
Marketable securities	0		0
Level 2
Assets
Derivative assets - current portion	0		2,961
Total	642,845		641,963
Liabilities
Derivative liabilities - current portion	(9,084)		(105)
Total	(9,084)		(105)
Level 2 \| Cash equivalents
Assets
Marketable securities	114,501		11,183
Level 2 \| Certificates of deposit and time deposits
Assets
Marketable securities	44,250		145,752
Level 2 \| Corporate debt securities
Assets
Marketable securities	200,637		189,973
Level 2 \| U.S. agency and U.S. Treasury securities
Assets
Marketable securities	283,457		292,094
Level 3
Assets
Derivative assets - current portion	0		0
Total	0		0
Liabilities
Derivative liabilities - current portion	0		0
Total	0		0
Level 3 \| Cash equivalents
Assets
Marketable securities	0		0
Level 3 \| Certificates of deposit and time deposits
Assets
Marketable securities	0		0
Level 3 \| Corporate debt securities
Assets
Marketable securities	0		0
Level 3 \| U.S. agency and U.S. Treasury securities
Assets
Marketable securities	$ 0		$ 0