Cash, Cash Equivalents, and Marketable Securities - Schedule of Marketable Securities as Level 2 Measurements Within the Fair Value Hierarchy (Details) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Mar. 31, 2026 |
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| Cash and Cash Equivalents [Abstract] | ||
| Due within one year | $ 1,451,480 | $ 2,145,345 |
| Due after one year but within five years | 1,113,840 | 727,256 |
| Total estimated fair value of available-for-sale securities | $ 2,565,320 | $ 2,872,601 |
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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