Stock-based compensation - Summary of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	7 Months Ended	12 Months Ended
Dec. 31, 2025	May 25, 2025	May 26, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 5,671	$ 10,158	$ 6,201
Cost of sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	402	856	582
Research and development expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	267	(122)	168
Selling, general and administrative expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 5,002	$ 9,424	$ 5,451

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.

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+ Details