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Earnings Per Share (Tables)
 9 Months Ended
Oct. 31, 2015
Earnings Per Share [Abstract]  
Reconciliation Of The Number Of Shares (Denominator) Used In The Basic And Diluted EPS Computations
The following is a reconciliation of the number of shares (denominator) used in the basic and diluted EPS computations:

 
Three Months Ended
 
 
Nine Months Ended
Shares in (000s)
Basic EPS

 
Effect of
dilutive
common stock
equivalents

 
Diluted
EPS

 
 
Basic EPS

 
Effect of
dilutive
common
stock
equivalents

 
Diluted
EPS

October 31, 2015
 
 
 
 
 
 
 
 
 
 
 
 
Shares
401,494

 
3,010

 
404,504

 
 
404,636

 
3,252

 
407,888

Amount
$
0.54

 
$
(0.01
)
 
$
0.53

 
 
$
1.87

 
$
(0.02
)
 
$
1.85

 
 
 
 
 
 
 
 
 
 
 
 
 
November 1, 2014
 
 
 
 
 
 
 
 
 
 
 
 
     Shares
411,732

 
4,197

 
415,929

 
 
414,920

 
4,563

 
419,483

     Amount
$
0.47

 
$
(0.01
)
 
$
0.46

 
 
$
1.63

 
$
(0.02
)
 
$
1.61