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Stockholders' Equity (Tables)
 12 Months Ended
Oct. 31, 2016
Stock Repurchase Program [Abstract]  
Stock repurchase program
The following table provides information about the share repurchase programs for the fiscal years ended October 31, 2016, 2015, and 2014:
 
2016
 
2015
 
2014
Number of shares purchased (in thousands)
13,652

 
1,665

 
2,947

Average price per share
$
28.77

 
$
34.17

 
$
30.80

Remaining authorization at October 31 (in thousands)
15,838

 
18,535

 
5,321