Short-term investments (Details) - USD ($) $ in Thousands |
9 Months Ended | 12 Months Ended |
|---|---|---|
Dec. 31, 2025 |
Mar. 31, 2025 |
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| Short-term investments | ||
| Amortized cost | $ 146,057 | $ 372,377 |
| Gross unrealized gains | 129 | 349 |
| Gross unrealized losses | 0 | (41) |
| Credit Losses | 0 | 0 |
| Fair value | 146,186 | 372,685 |
| US Government agency bonds | ||
| Short-term investments | ||
| Amortized cost | 20,007 | 84,807 |
| Gross unrealized gains | 2 | 15 |
| Gross unrealized losses | 0 | (18) |
| Credit Losses | 0 | 0 |
| Fair value | 20,009 | 84,804 |
| US Treasury bonds | ||
| Short-term investments | ||
| Amortized cost | 126,050 | 287,570 |
| Gross unrealized gains | 127 | 334 |
| Gross unrealized losses | 0 | (23) |
| Credit Losses | 0 | 0 |
| Fair value | $ 126,177 | $ 287,881 |
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- Definition Amount of unrealized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount excluding accrued interest, of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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