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Income Taxes (Tables)
6 Months Ended
Jun. 30, 2018
Summary of Operating Results of Income Tax

The Company reported the following operating results for the periods presented (in thousands):

 

     Three Months Ended June 30     Six Months Ended June 30,  
     2018     2017     2018     2017  

Income (loss) before income taxes

   $ 24,855     $ 20,172     $ 11,312     $ (10,858

Income tax (benefit) expense

     (9,944     (8,302     (6,454     1,699  

Effective income tax rate

     (40.0 )%      (44.8 )%      (57.1 )%      (15.6 )%