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Net Income per Share (Tables) | 3 Months Ended
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Apr. 30, 2026
Earnings Per Share [Abstract] |
Schedule of Numerators and Denominators of the Basic and Diluted EPS Computations for Common Stock | The following table presents the calculation of basic and diluted net income per share (in thousands, except per share data):
| Three months ended April 30, |  |
2026 |  | 2025 |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |  |
Net income | $ | 260,936 |  |  | $ | 228,190 |  |  |  |  |  |  |
Denominator: |  |  |  |  |  |  |  |  |
Basic shares: |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding, basic | 163,345 |  |  | 162,749 |  |  |  |  |  |  |
Diluted shares: |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding, basic | 163,345 |  |  | 162,749 |  |  |  |  |  |  |
Effect of potentially dilutive common shares | 2,644 |  |  | 3,480 |  |  |  |  |  |  |
Weighted average common shares outstanding, diluted | 165,989 |  |  | 166,229 |  |  |  |  |  |  |
Net income per share: |  |  |  |  |  |  |  |  |
Basic | $ | 1.60 |  |  | $ | 1.40 |  |  |  |  |  |  |
Diluted | $ | 1.57 |  |  | $ | 1.37 |  |  |  |  |  |  |
Schedule of Potential Common Share Equivalents Excluded where the Inclusion would be Anti-dilutive | Potential common share equivalents excluded because their inclusion would be anti-dilutive are as follows (in thousands):
|  |  | Three months ended April 30,
|  |  |  | 2026 |  | 2025 |  |
Options and RSUs |  |  |  |  | 11,158 |  |  | 7,078 |  |  |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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