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Net Income per Share
 9 Months Ended
Jul. 31, 2016
Earnings Per Share [Abstract]  
Net Income per Share
Net Income per Share
The Company computes basic net income per share by dividing net income available to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted net income per share reflects the dilution from potential common shares outstanding, such as stock options and unvested restricted stock units and awards, during the period using the treasury stock method.
The table below reconciles the weighted-average common shares used to calculate basic net income per share with the weighted-average common shares used to calculate diluted net income per share:
 
Three Months Ended 
 July 31,
 
Nine Months Ended 
 July 31,
 
2016
 
2015
 
2016
 
2015
 
(in thousands, except per share amounts)
Numerator:
 
 
 
 
 
 
 
Net income
$
64,718

 
$
55,387

 
$
194,129

 
$
176,172

Denominator:
 
 
 
 
 
 
 
Weighted-average common shares for basic net income per share
151,169

 
155,533

 
152,129

 
154,835

Dilutive effect of potential common shares from equity-based compensation
2,721

 
3,051

 
2,500

 
3,015

Weighted-average common shares for diluted net income per share
153,890

 
158,584

 
154,629

 
157,850

Net income per share:
 
 
 
 
 
 
 
Basic
$
0.43

 
$
0.36

 
$
1.28

 
$
1.14

Diluted
$
0.42

 
$
0.35

 
$
1.26

 
$
1.12

Anti-dilutive employee stock-based awards excluded(1)
2,270

 
563

 
1,822

 
1,529


(1)
These employee stock-based awards were anti-dilutive for the respective periods and are excluded in calculating diluted net income per share. While such awards were anti-dilutive for the respective periods, they could be dilutive in the future.