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Revenue recognition - Narrative (Details) - Revenues - Customer concentration risk | 12 Months Ended
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May 25, 2025 | May 26, 2024
Customer one |  |
Related Party Transaction [Line Items] |  |
Concentration risk percentage | 44.00% | 39.00%
Customer two |  |
Related Party Transaction [Line Items] |  |
Concentration risk percentage | 18.00% | 19.00%
Customer three |  |
Related Party Transaction [Line Items] |  |
Concentration risk percentage | 10.00% | 10.00%

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