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Accumulated Other Comprehensive Loss (Tables)
 12 Months Ended
Dec. 31, 2020
Accumulated Other Comprehensive Loss [Abstract]  
Accumulated Other Comprehensive Loss

The following summarizes the changes in the balance and the reclassifications out of accumulated other comprehensive loss on our Consolidated Balance Sheets to the Consolidated Statements of Comprehensive Income:

  
Year Ended December 31,
  
(In thousands)
  
2020
    
2019
    
2018
  
Beginning balance
  
$
(2,087
)
  
$
(1,465
)
  
$
(2,144
)
Other comprehensive income (loss)
                        
Defined benefit pension plan:
                        
Net gain (loss) during year
    
(791
)
    
(906
)
    
769
  
Amortization of net loss(1)
    
159
      
46
      
136
  
     
(632
)
    
(860
)
    
905
  
Tax expense (benefit)
    
(159
)
    
(238
)
    
226
  
Total other comprehensive income (loss)
    
(473
)
    
(622
)
    
679
  
Ending balance
  
$
(2,560
)
  
$
(2,087
)
  
$
(1,465
)

(1)
These amounts are included in the computation of net periodic pension costs and were reclassified to selling, general and administrative costs.