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Derivative Instruments and Hedging Activities (Tables)
 12 Months Ended
Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Gain (loss) recognized on non-designated derivative instruments
The following table summarizes the loss recognized on non-designated foreign exchange derivative instruments for the years ended December 31:
 
 
2013
 
2012
Interest expense
 
$
(6,406
)
 
$
(4,934
)
Foreign exchange gain (loss), net
 
10,900

 
(2,852
)
Total
 
$
4,494

 
$
(7,786
)