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Shareholders' Equity | 6 Months Ended
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Jul. 31, 2019
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, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Number of common shares repurchased and subsequently retired |  |  | 5,637,369 |  |  |  | — |  |  |  | 8,068,196 |  |  |  | — |
Total cost |  | $ | 146,180 |  |  | $ | — |  |  | $ | 217,422 |  |  | $ | — |
Average cost per share, including commissions |  | $ | 25.93 |  |  | $ | — |  |  | $ | 26.95 |  |  | $ | — |
On August 22, 2017, the Company’s Board of Directors authorized the repurchase of 20,000,000 common shares under a share repurchase program. On June 4, 2019, the Company’s Board of Directors authorized the repurchase of 20,000,000 common shares under a new share repurchase program. As of July 31, 2019, 26,333,957 common shares were remaining under the programs. During the six months ended July 31, 2019, the Company acquired and subsequently retired 178,064 common shares at a total cost of $5,429 from employees to meet minimum statutory tax withholding requirements. During the six months ended July 31, 2018, the Company acquired and subsequently retired 158,018 common shares at a total cost of $5,924 from employees to meet minimum statutory tax withholding requirements.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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