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Interest and Other Income (Loss), Net (Tables)
 9 Months Ended
Jul. 31, 2018
Other Income and Expenses [Abstract]  
Schedule of Interest and Other Income (Loss), Net
The components of interest and other income (loss), net, are as follows (in thousands):
 
Quarter Ended July 31,
 
Nine Months Ended July 31,
 
2018
 
2017
 
2018
 
2017
Interest income
$
3,620

 
$
1,820

 
$
9,276

 
$
4,609

Gains (losses) on non-hedge designated foreign currency forward contracts
2,182

 
834

 
4,351

 
(891
)
Foreign currency exchange loss
(6,879
)
 
(2,946
)
 
(11,670
)
 
(4,071
)
Modification of term loan
—

 
—

 
—

 
(2,924
)
Other
(466
)
 
(556
)
 
(629
)
 
(119
)
Interest and other income (loss), net
$
(1,543
)
 
$
(848
)
 
$
1,328

 
$
(3,396
)