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Other Income (Expense), Net
 3 Months Ended
Apr. 30, 2013
Other Income and Expenses [Abstract]  
Other Income (Expense), Net
Other Income (Expense), Net—Other income (expense), net was comprised of the following:

Three months ended April 30,
2013
 
2012
Interest income
$
625

 
$
475

Foreign currency exchange loss
(1,375
)
 
(215
)
Other, net
(209
)
 
(177
)
Other income (expense), net
$
(959
)
 
$
83