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Net Income per Common Share (Tables)
6 Months Ended
Jul. 31, 2017
Earnings Per Share [Abstract]  
Reconciliation of Weighted Average Common Shares Outstanding Used for Computation of Basic and Diluted Net Income per Common Share

The following is a reconciliation of the weighted-average common shares outstanding used for the computation of basic and diluted net income per common share:

 

 

 

Three Months Ended

 

 

Six Months Ended

 

 

 

July 31,

 

 

July 31,

 

 

 

2017

 

 

2016

 

 

2017

 

 

2016

 

Basic weighted-average common shares

   outstanding

 

 

113,500,381

 

 

 

117,133,169

 

 

 

114,865,336

 

 

 

117,218,013

 

Effect of dilutive options, stock appreciation

   rights, performance stock units and restricted

   stock units

 

 

260,266

 

 

 

249,963

 

 

 

261,641

 

 

 

266,118

 

Diluted weighted-average shares outstanding

 

 

113,760,647

 

 

 

117,383,132

 

 

 

115,126,977

 

 

 

117,484,131