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Accumulated Other Comprehensive Income (Tables)
 9 Months Ended
Jul. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule of Accumulated Other Comprehensive Income
The following table summarizes the changes in accumulated balances of other comprehensive income (“AOCI”) for the nine months ended July 31, 2018:
 
Unrealized
 
Unrealized Loss
on
 
Unrealized Gain on
 
Cumulative Foreign Currency
 
 
 
Loss on Available-for-sale Securities
 
Foreign Currency Forward Contracts
 
Forward Starting Interest Rate Swap
 
Foreign Currency
Translation Adjustment
 
Total
Balance at October 31, 2017
$
(451
)
 
$
(1,386
)
 
$
218

 
$
(9,398
)
 
$
(11,017
)
Other comprehensive income (loss) before reclassifications
(59
)
 
(9
)
 
5,330

 
(2,161
)
 
3,101

Amounts reclassified from AOCI
—

 
(1,058
)
 
269

 
—

 
(789
)
Balance at July 31, 2018
$
(510
)
 
$
(2,453
)
 
$
5,817

 
$
(11,559
)
 
$
(8,705
)

The following table summarizes the changes in AOCI for the nine months ended July 31, 2017:

 
Unrealized Gain/(Loss)
on
 
Unrealized Gain (Loss)
on
 
Unrealized Gain on
 
Cumulative Foreign Currency
 
 
 
Available-for-sale Securities
 
Foreign Currency Forward Contracts
 
Forward Starting Interest Rate Swap
 
Foreign Currency
Translation Adjustment
 
Total
Balance at October 31, 2016
$
139

 
$
(1,091
)
 
$
(5,967
)
 
$
(17,410
)
 
$
(24,329
)
Other comprehensive income (loss) before reclassifications
(533
)
 
896

 
4,838

 
11,891

 
17,092

Amounts reclassified from AOCI
—

 
2,010

 
(268
)
 
—

 
1,742

Balance at July 31, 2017
$
(394
)
 
$
1,815

 
$
(1,397
)
 
$
(5,519
)
 
$
(5,495
)