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Shareholders' Equity | 6 Months Ended
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Jul. 31, 2022
Equity [Abstract] |
Shareholders' Equity | 9. 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, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
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, 2022, 19,156,390 common shares were remaining under the programs. 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 awards. During the six months ended July 31, 2021, the Company acquired and subsequently retired 222,531 common shares at a total cost of $7,562 from employees to meet payroll tax withholding requirements on vested awards.

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