Investments - Available-For-Sale Securities (Details) - USD ($) |
Apr. 30, 2026 |
Dec. 22, 2025 |
Apr. 30, 2025 |
|---|---|---|---|
| Investments | |||
| Amortized Cost | $ 276,246,000 | ||
| Gross Unrealized Gains | 2,000 | ||
| Gross Unrealized Losses | (217,000) | ||
| Fair Value | 276,031,000 | ||
| Available for sale securities | $ 0 | ||
| Carrying value of investment measured at cost | 8,000,000 | $ 3,000,000 | |
| Corporate securities | |||
| Investments | |||
| Amortized Cost | 124,306,000 | ||
| Gross Unrealized Gains | 1,000 | ||
| Gross Unrealized Losses | (142,000) | ||
| Fair Value | 124,165,000 | ||
| U.S. government securities | |||
| Investments | |||
| Amortized Cost | 151,940,000 | ||
| Gross Unrealized Gains | 1,000 | ||
| Gross Unrealized Losses | (75,000) | ||
| Fair Value | $ 151,866,000 |
| X | ||||||||||
- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) 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 Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) 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 Amount 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 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 Amount of investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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