Income taxes - Summary of Operating Loss and Tax Credit Carryforwards (Details) $ in Thousands	12 Months Ended
May 25, 2025 USD ($)
Federal
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards	$ 172,048
Tax credit carryforward amount	$ 3,858
Tax credit carryforward, period	20 years
State \| California
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards	$ 52,239
Tax credit carryforward amount	2,058
State \| All other states
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards	16,512
Tax credit carryforward amount	$ 2,024
Tax credit carryforward, period	15 years

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-3

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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

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+ References

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