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Supplemental Cash Flow Information (Tables)
 12 Months Ended
Dec. 31, 2018
Supplemental Cash Flow Information [Abstract]  
Supplemental Cash Flow Information
(In thousands)
 
2018
  
2017
  
2016
 
Cash paid for income taxes
  
8,426
   
18,763
  
$
26,574
 
Income tax refunds received
  
17
   
9
   
100
 
Cash paid for interest
  
2,425
   
2,486
   
2,540
 
Noncash financing and investing activity:
            
Fixed assets acquired (adjusted) related to capital lease and financing obligations
  
—
   
1,009
   
3,890
 
Increase in financing obligations
  
—
   
2,598
   
5,474