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Shareholders' Equity (Tables)
 9 Months Ended
Oct. 31, 2019
Equity [Abstract]  
Share Repurchase Activity

Share repurchase activity under the Company’s share repurchase programs was as follows:

 

 

 

Three Months Ended

 

 

Nine Months Ended

 

 

 

October 31,

 

 

October 31,

 

 

 

2019

 

 

2018

 

 

2019

 

 

2018

 

Number of common shares repurchased and subsequently retired

 

 

—

 

 

 

1,500,000

 

 

 

8,068,196

 

 

 

1,500,000

 

Total cost

 

$

—

 

 

$

57,512

 

 

$

217,421

 

 

$

57,512

 

Average cost per share, including commissions

 

$

—

 

 

$

38.34

 

 

$

26.95

 

 

$

38.34