Severance liabilities - Schedule of Future Maturities of Severance Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 24, 2022	Jun. 25, 2021
Retirement Benefits [Abstract]
2024	$ 1,449
2025	2,022
2026	1,389
2027	1,641
2028	2,045
Thereafter	13,824
Total	$ 22,370	$ 18,588	$ 19,782

Amount of liability, recognized in statement of financial position, for defined benefit pension plan. Excludes other postretirement benefit plan.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(15))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480535/715-20-45-2

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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