Revenue recognition - Narrative (Details) - Revenues - Customer concentration risk	3 Months Ended	6 Months Ended
Jun. 30, 2026	May 25, 2025	Jun. 30, 2026	May 25, 2025
Customer one
Related Party Transaction [Line Items]
Concentration risk percentage	66.00%	46.00%	55.00%	50.00%
Customer two
Related Party Transaction [Line Items]
Concentration risk percentage	10.00%	16.00%	15.00%	17.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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+ Details