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Net Income per Share (Tables)
 6 Months Ended
Apr. 30, 2019
Earnings Per Share [Abstract]  
Reconciliation of Weighted-Average Common Shares Used to Calculate Net Income Per Share
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 
 April 30,
 
Six Months Ended 
 April 30,
 
2019
 
2018
 
2019
 
2018
 
(in thousands, except per share amounts)
Numerator:
 
 
 
 
 
 
 
Net income
$
118,210

 
$
102,472

 
$
271,724

 
$
98,781

Denominator:
 
 
 
 
 
 
 
Weighted-average common shares for basic net income per share
149,712

 
149,034

 
149,500

 
149,245

Dilutive effect of potential common shares from equity-based compensation
4,192

 
4,133

 
3,883

 
4,419

Weighted-average common shares for diluted net income per share
153,904

 
153,167

 
153,383

 
153,664

Net income per share:
 
 
 
 
 
 
 
Basic
$
0.79

 
$
0.69

 
$
1.82

 
$
0.66

Diluted
$
0.77

 
$
0.67

 
$
1.77

 
$
0.64

Anti-dilutive employee stock-based awards excluded(1)
49

 
761

 
1,538

 
618


(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.