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OTHER COMPREHENSIVE INCOME
 12 Months Ended
Dec. 31, 2021
OTHER COMPREHENSIVE INCOME
5. OTHER COMPREHENSIVE INCOME
Other comprehensive income consists of the foreign currency translation adjustment associated with our Canadian operations’ use of the Canadian dollar as their functional currency and changes in the unrealized gains (losses) on cash flow hedging instruments. The tax effects allocated to each component of other comprehensive income were as follows:
 
Years Ended December 31,
   
2021
     
2020
     
2019
  
Foreign currency translation adjustment
   
$
936
 
    $ 6,272      $ 12,298  
Unrealized gain (loss) on cash flow hedging instruments
   
 
97
 
      1,205        (2,001 ) 
Income tax (expense) benefit
   
 
(27
) 
      (325 )       540  
    
 
 
     
 
 
     
 
 
  
Unrealized gain (loss) on cash flow hedging instruments, net of tax
   
 
70
 
      880        (1,461 ) 
    
 
 
     
 
 
     
 
 
  
Reclassification of loss (gain) on cash flow hedging instruments into earnings
   
 
305
 
      (574 )       (482 ) 
Income tax (benefit) expense
   
 
(86
) 
      156        130  
    
 
 
     
 
 
     
 
 
  
Reclassification of loss (gain) on cash flow hedging instruments into earnings, net of tax
   
 
219
 
      (418 )       (352 ) 
    
 
 
     
 
 
     
 
 
  
Other comprehensive income
   
$
1,225
 
    $ 6,734      $ 10,485  
    
 
 
     
 
 
     
 
 
  
The changes in each component of accumulated other comprehensive loss, net of tax, were as follows:

 
Years Ended December 31,
  
2021
 
  
2020
 
  
2019
 
Foreign currency translation adjustment:
                           
Beginning balance
   
$
(34,694
)
    $ (38,599 )    $ (46,604 )
Current period other comprehensive income
   
 
518
 
      3,905        8,005  
    
 
 
     
 
 
     
 
 
  
Ending balanc
e
   
 
(34,176
) 
      (34,694 )       (38,599 ) 
    
 
 
     
 
 
     
 
 
  
Cash flow hedging instruments:
                           
Beginning balance
   
 
(173
) 
      (451 )       636  
Current period other comprehensive income (loss)
   
 
43
 
      528        (876 ) 
Reclassification adjustment
   
 
130
 
      (250 )       (211 ) 
    
 
 
     
 
 
     
 
 
  
Ending balance
     
—
        (173 )       (451 ) 
    
 
 
     
 
 
     
 
 
  
Accumulated other comprehensive loss, net of tax
   
$
(34,176
) 
    $ (34,867 )     $ (39,050 )