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Other Income (Expense), Net (Tables)
 12 Months Ended
Jan. 31, 2017
Other Income and Expenses [Abstract]  
Other Income (Expense), Net
Other income (expense), net was comprised of the following:
Fiscal year ended January 31,
2017
 
2016
 
2015
Interest income
$
2,777

 
$
1,870

 
$
1,723

Foreign currency exchange gain (loss)
729

 
199

 
(1,152
)
Other, net
(1,257
)
 
(457
)
 
(1,348
)
Other income (expense), net
$
2,249

 
$
1,612

 
$
(777
)