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Derivative instruments (Tables)
9 Months Ended
Sep. 30, 2013
Derivative Instruments And Hedging Activities Disclosure [Abstract]  
Schedule of Fair Values of Derivative Instruments

The tables below disclose the types of derivative instruments the Company owns, the classifications and fair values of these instruments within the balance sheet, and the amount of gain (loss) recognized in other comprehensive income (loss) (“OCI”) or net income (loss).

 

(US$ in thousands)

As of September 30, 2013

   Fair value: favorable
(unfavorable)
    Balance sheet location  

Cross-currency swap

   $ (523     Other long-term liabilities   

As of December 31, 2012

            

Cross-currency swap

   $ 305        Other long-term assets   
Schedule of Gain (Loss) Recognized on Derivative Instruments
     Three Months Ended
September 30,
     Nine Months Ended
September 30,
 

(US$ in thousands)

   2013      2012      2013      2012  

Cross-currency swap unrealized gain (loss) recorded in other comprehensive income (loss), net of taxes

   $ 582       $ 253       $ 486       $ 177