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Shareholders' Equity | 6 Months Ended
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Jul. 31, 2023
Equity [Abstract] |
Shareholders' Equity | 8. Shareholders’ Equity Share repurchase activity under the Company’s share repurchase programs was as follows:
|  | Three Months Ended |  |  | Six Months Ended |
|  | July 31, |  |  | July 31, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Number of common shares repurchased and subsequently retired |  |  | — |  |  |  | 2,314,347 |  |  |  | — |  |  |  | 4,736,405 |
Total cost |  | $ | — |  |  | $ | 49,964 |  |  | $ | — |  |  | $ | 112,016 |
Average cost per share, including commissions |  | $ | — |  |  | $ | 21.59 |  |  | $ | — |  |  | $ | 23.65 |
On August 22, 2017, the Company’s Board of Directors authorized the repurchase of 20,000,000 common shares under a share repurchase program; all shares were repurchased and the authorization was completed by the end of June 2022. On June 4, 2019, the Company’s Board of Directors authorized the repurchase of an additional 20,000,000 common shares under a share repurchase program. As of July 31, 2023, 19,156,390 common shares were remaining under the program. During the six months ended July 31, 2023, the Company acquired and subsequently retired 303,579 common shares at a total cost of $8,184 from employees to meet payroll tax withholding requirements on vested share-based awards. During the six months ended July 31, 2022, the Company acquired and subsequently retired 245,512 common shares at a total cost of $6,668 from employees to meet payroll tax withholding requirements on vested share-based awards.

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