Stock based compensation - Schedule of RSU Vesting Activity (Details) - Restricted Stock Units (RSUs)	6 Months Ended
Sep. 30, 2024 shares
March 2025
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares, vested	79,995
March 2026
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares, vested	9,579,589
March 2027
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares, vested	63,336

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