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Segment Disclosure (Tables)
 9 Months Ended
Jul. 31, 2017
Segment Reporting [Abstract]  
Revenues Related to Operations by Geographic Areas
Revenues related to operations in the United States and other geographic areas were:
 
 
Three Months Ended 
 July 31,
 
Nine Months Ended 
 July 31,
 
2017
 
2016
 
2017
 
2016
 
(in thousands)
Revenue:
 
 
 
 
 
 
 
United States
$
358,201

 
$
316,902

 
$
1,028,108

 
$
889,220

Europe
80,260

 
66,946

 
234,259

 
211,993

Japan
64,119

 
63,056

 
183,023

 
174,838

Asia-Pacific and Other
192,801

 
168,300

 
582,846

 
512,762

Consolidated
$
695,381

 
$
615,204

 
$
2,028,236

 
$
1,788,813