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Accumulated Other Comprehensive Loss (Tables)
 6 Months Ended
Jun. 30, 2018
Equity [Abstract]  
Summary of Changes in Accumulated Other Comprehensive Loss by Component

Changes in accumulated other comprehensive loss by component for the six months ended June 30, 2018 and 2017 consisted of the following (in thousands):

 

     Minimum
Pension
Liability		      Other-Than-
Temporary
Impairment of
Investment		      Total  

Balance, December 31, 2017

    $ (20,149 )     $ (6,543 )     $ (26,692 ) 

Amounts reclassified from accumulated other comprehensive loss

      (9 )       166        157  

Income tax benefit

      5        —          5  
  

 

 

     

 

 

     

 

 

  

Net other comprehensive income (loss)

      (4 )       166        162  
  

 

 

     

 

 

     

 

 

  

Balance, June 30, 2018

    $ (20,153 )     $ (6,377 )     $ (26,530 ) 
  

 

 

     

 

 

     

 

 

  
     Minimum
Pension
Liability		      Other-Than-
Temporary
Impairment of
Investment		      Total  

Balance, December 31, 2016

    $ (22,268 )     $ —        $ (22,268 ) 

Amounts reclassified from accumulated other comprehensive loss

      45        —          45  

Income tax benefit

      —          —          —    
  

 

 

     

 

 

     

 

 

  

Net other comprehensive income

      45        —          45  
  

 

 

     

 

 

     

 

 

  

Balance, June 30, 2017

    $ (22,223 )     $ —        $ (22,223 )