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Non-Operating Income (Expense)
 12 Months Ended
Nov. 30, 2018
Other Income and Expenses [Abstract]  
NON-OPERATING INCOME (EXPENSE)
NON-OPERATING INCOME (EXPENSE)
Non-operating income (expense) for fiscal 2018, 2017 and 2016 included the following (in thousands):
 
2018
 
2017
 
2016
Interest and other income (expense), net:
 
 
 
 
 
Interest income
$
92,540

 
$
66,069

 
$
47,340

Foreign exchange gains (losses)
(42,612
)
 
(30,705
)
 
(35,716
)
Realized gains on fixed income investment
655

 
1,673

 
2,880

Realized losses on fixed income investment
(11,305
)
 
(725
)
 
(985
)
Other
258

 
83

 
29

Interest and other income (expense), net
$
39,536

 
$
36,395

 
$
13,548

Interest expense
$
(89,242
)
 
$
(74,402
)
 
$
(70,442
)
Investment gains (losses), net:
 

 
 
 
 
Realized investment gains
$
6,128

 
$
3,279

 
$
4,964

Unrealized investment gains
—

 
4,274

 
186

Realized investment losses
—

 
—

 
(6,720
)
Unrealized investment losses
(2,915
)
 
—

 
—

Investment gains (losses), net
$
3,213

 
$
7,553

 
$
(1,570
)
Non-operating income (expense), net
$
(46,493
)
 
$
(30,454
)
 
$
(58,464
)