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Income Taxes (Tables)
9 Months Ended
Sep. 30, 2018
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit)

The components of income tax expense (benefit) are as follows:

 

    Three months ended September 30,     Nine months ended September 30,  
    2018     2017     2018     2017  
Current income tax                                
United States   $ 528     $ (1,837 )   $ 1,250     $ (4,048 )
Colombia     (3,683 )     (723 )     (6,205 )     (2,373 )
      (3,155 )     (2,560 )     (4,955 )     (6,421 )
Deferred income Tax                                
United States     (88 )     597       (1,249 )     594  
Colombia     982       (3,843 )     17       3,031  
      894       (3,246 )     (1,232 )     3,625  
Total income tax benefit (provision)   $ (2,261 )   $ (5,806 )   $ (6,187 )   $ (2,796 )
                                 
Effective tax rate     27 %     45 %     32 %     38 %