Income taxes - Summary of Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | |||
| Unrecognized Tax Benefits, Beginning Balance | $ 1,118 | $ 349 | $ 434 |
| Increase / (decrease) to tax positions in prior period | 0 | (4) | (85) |
| Increase due to business combinations | 547 | 1,118 | 0 |
| Lapse of statute of limitations | 0 | (345) | 0 |
| Unrecognized Tax Benefits, Ending Balance | $ 1,665 | $ 1,118 | $ 349 |