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OTHER INCOME, NET
 9 Months Ended
Jun. 30, 2017
OTHER INCOME, NET [Abstract]  
OTHER INCOME (EXPENSE), NET
13.
OTHER INCOME (EXPENSE), NET

Other income (expense), net, consisted of the following:

 
Three Months Ended
June 30,
 
Nine Months Ended
 June 30,
 
 
2017
 
2016
 
2017
 
2016
 
         
Interest income
 
$
659
  
$
267
  
$
1,596
  
$
654
 
Other income (expense)
  
(774
)
  
(513
)
  
(481
)
  
(258
)
Total other income (expense), net
 
$
(115
)
 
$
(246
)
 
$
1,115
  
$
396
 

Other income (expense) primarily represents gains and losses recorded on transactions denominated in foreign currencies.  The increase in other income was primarily due to the impact of foreign currency fluctuations on monetary assets and liabilities denominated in currencies other than the functional currency, net of the gains and losses incurred on forward foreign exchange contracts discussed in Note 9.