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Stock-based compensation - Schedule of Other Information about Stock-Based Awards (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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May 25, 2025 | May 26, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Intrinsic value of stock options exercised | $ 0 | $ 115
Tax benefit of options exercised | $ 0 | $ 35
RSUs |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Weighted average grant date fair value (in dollars per share) | $ 5.50 | $ 7.48
Fair value vested per share (in dollars per share) | 7.93 | 7.74
PSUs |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Weighted average grant date fair value (in dollars per share) | 3.85 |
Fair value vested per share (in dollars per share) | $ 4.24 | $ 0

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- Definition Amount of tax benefit from exercise of option under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 2A -Subparagraph (a) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2A + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Per share or unit weighted-average intrinsic value of award vested under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Line items represent financial concepts included in a table. 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