Cash Equivalents and Short-Term Investments - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Apr. 30, 2026 |
Apr. 30, 2025 |
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| Cash and Cash Equivalents [Abstract] | ||
| Interest and investment income | $ 11,900 | $ 10,900 |
| Net amortization of premiums or discounts on short-term investments | $ 324 | $ 2,996 |
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- Definition The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount of interest income, amortization of premium and accretion of discount on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale); classified as operating. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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