Segment Information - Schedule of Significant Segment Expenses and Other Segment Items (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Apr. 30, 2026 |
Apr. 30, 2025 |
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| Segment Reporting [Line Items] | ||
| Revenue | $ 1,239,006 | $ 1,174,715 |
| Stock-based compensation expense | 178,953 | 201,569 |
| Provision for income taxes | 105,943 | 61,162 |
| Net income | 425,677 | 254,603 |
| Operating Segments | Reportable Segment | ||
| Segment Reporting [Line Items] | ||
| Revenue | 1,239,006 | 1,174,715 |
| Adjusted cost of revenue | 248,798 | 244,631 |
| Adjusted research and development | 153,112 | 127,079 |
| Adjusted sales and marketing | 265,240 | 271,799 |
| Adjusted general and administrative | 63,137 | 63,880 |
| Stock-based compensation expense | 178,953 | 201,569 |
| Interest income | (70,283) | (81,782) |
| Other segment items | (131,571) | 31,774 |
| Provision for income taxes | 105,943 | 61,162 |
| Net income | 425,677 | 254,603 |
| Eliminations and Reconciling Items | ||
| Segment Reporting [Line Items] | ||
| Net income | $ 0 | $ 0 |
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of interest income classified as operating and nonoperating. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. 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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- Definition Amount of other expense (income) and loss (gain) calculated as difference between segment revenue and separately disclosed expense category to arrive at segment profit (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Cost Of Goods And Services Sold, Adjusted No definition available.
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- Definition General And Administrative, Adjusted No definition available.
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- Definition Research And Development Expense, Adjusted No definition available.
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- Definition Selling And Marketing Expense, Adjusted No definition available.
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