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Other Income (Expense), net (Tables)
 6 Months Ended
Apr. 30, 2017
Other Income and Expenses [Abstract]  
Components of Other Income (Expense), Net
The following table presents the components of other income (expense), net:
 
Three Months Ended 
 April 30,
 
Six Months Ended 
 April 30,
 
2017
 
2016
 
2017
 
2016
 
(in thousands)
Interest income
$
1,499

 
$
889

 
$
2,733

 
$
1,469

Interest expense
(1,860
)
 
(848
)
 
(3,168
)
 
(1,521
)
Gain (loss) on assets related to executive deferred compensation plan assets
7,763

 
8,707

 
15,543

 
(687
)
Foreign currency exchange gain (loss)
(623
)
 
(783
)
 
2,599

 
(202
)
Other, net
1,635

 
2,452

 
2,194

 
4,590

Total
$
8,414

 
$
10,417

 
$
19,901

 
$
3,649