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Accumulated Other Comprehensive Loss
12 Months Ended
Dec. 31, 2020
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]  
Accumulated Other Comprehensive Loss
(17)Accumulated Other Comprehensive Loss

 

The components of accumulated other comprehensive loss consist of the following:

 

   Year ended December 31, 
   2020   2019   2018 
             
Net derivative instruments, beginning of year  $52   $136   $37 
Net derivative instrument gain (loss), net of tax   (52)   (84)   99 
Net derivative instruments, end of year   
    52    136 
                
Cumulative translation adjustments, beginning of year   (39,905)   (33,786)   (17,869)
Translation adjustments   33,908    (6,119)   (15,917)
Cumulative translation adjustments, end of year   (5,997)   (39,905)   (33,786)
                
Accumulated other comprehensive loss  $(5,997)  $(39,853)  $(33,650)