Stock-based compensation - Schedule of Additional Information Related to RSAs and RSUs (Details) - RSAs and RSUs - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 86,919	$ 71,786	$ 40,478
Intrinsic value of restricted stock released	86,138	170,037	73,124
Cost of sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	12	54	16
Selling, general and administrative expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 86,907	$ 71,732	$ 40,462

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