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Earnings Per Share (Tables) | 12 Months Ended
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Jan. 31, 2023
Earnings Per Share [Abstract] |
Schedule of computation of basic and diluted earnings per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | January 31, |  | January 31, |  | January 31,
Year Ended | ​ | 2023 | ​ | 2022 | ​ | 2021
​ | ​ | ​ | ​ | ​ | ​ | ​
Net income for purposes of calculating basic and diluted earnings per share |  | 102,236 |  | 86,282 |  | 52,100
​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average shares outstanding |  | 84,791 |  | 84,591 |  | 84,360
Dilutive effect of employee stock options |  | 455 |  | 482 |  | 358
Dilutive effect of restricted and performance share units |  | 1,205 |  | 1,127 |  | 1,038
Weighted average common and common equivalent shares outstanding |  | 86,451 |  | 86,200 |  | 85,756
Earnings per share |  | ​ |  |  |  |
Basic |  | 1.21 |  | 1.02 |  | 0.62
Diluted |  | 1.18 |  | 1.00 |  | 0.61
​

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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