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Net Income per Common Share (Tables) | 6 Months Ended
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Jul. 31, 2025
Earnings Per Share [Abstract] |
Reconciliation of Weighted Average Common Shares Outstanding Used for Computation of Basic and Diluted Net Income per Common Share | The following is a reconciliation of the weighted-average common shares outstanding and calculation of basic and diluted net income per common share:
|  | Three Months Ended |  |  | Six Months Ended |
|  | July 31, |  |  | July 31, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Net income |  | $ | 143,865 |  |  | $ | 117,485 |  |  | $ | 252,212 |  |  | $ | 179,250 |
Basic weighted-average common shares outstanding |  |  | 89,667,451 |  |  |  | 93,071,401 |  |  |  | 90,692,646 |  |  |  | 93,097,694 |
Effect of dilutive options, performance stock units and restricted stock units |  |  | 1,500,530 |  |  |  | 1,612,602 |  |  |  | 1,611,978 |  |  |  | 1,744,371 |
Diluted weighted-average shares outstanding |  |  | 91,167,981 |  |  |  | 94,684,003 |  |  |  | 92,304,624 |  |  |  | 94,842,065 |
Net income per common share: |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 1.60 |  |  | $ | 1.26 |  |  | $ | 2.78 |  |  | $ | 1.93 |
Diluted |  | $ | 1.58 |  |  | $ | 1.24 |  |  | $ | 2.73 |  |  | $ | 1.89 |

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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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