Cash, cash equivalents and short-term investments - Schedule of Components of Cash, Cash Equivalents, and Short-Term Investments (Details) - USD ($) $ in Thousands	Sep. 25, 2026	Jun. 26, 2026	Sep. 26, 2025
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents and marketable securities, carrying cost	$ 754,298	$ 869,455
Unrealized Gain/ (Loss)	1,455	5,600
Cash and cash equivalents	392,326	346,711	$ 305,001
Short-term investments	363,427	528,344
Other Investments	0	0
Cash
Cash and Cash Equivalents [Line Items]
Carrying Cost	381,130	232,210
Cash and cash equivalents	381,130	232,210
Cash equivalents
Cash and Cash Equivalents [Line Items]
Carrying Cost	11,196	114,501
Unrealized Gain/ (Loss)	0
Cash and cash equivalents	11,196	114,501
Certificates of deposit and time deposits
Cash and Cash Equivalents [Line Items]
Carrying cost, total	21,685	43,690
Unrealized Gain/ (Loss)	413	560
Short-term investments	22,098	44,250
Corporate debt securities
Cash and Cash Equivalents [Line Items]
Carrying cost, total	174,920	194,798
Unrealized Gain/ (Loss)	2,640	5,839
Short-term investments	177,560	200,637
U.S. agency and U.S. treasury securities
Cash and Cash Equivalents [Line Items]
Carrying cost, total	165,367	284,256
Unrealized Gain/ (Loss)	(1,598)	(799)
Short-term investments	$ 163,769	$ 283,457

Cash and cash equivalents and marketable securities, carrying cost.

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Cash And Cash Equivalents, At Cost

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, before tax, of unrealized gain (loss) in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investments classified as other.

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Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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