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Supplemental Cash Flow Disclosures (Tables)
 12 Months Ended
Dec. 31, 2018
Supplemental Cash Flow Elements [Abstract]  
Cash Paid for Interest and Income Taxes

Cash paid for interest and income taxes during the years ended December 31, 2018, 2017 and 2016 were as follows (in thousands):

 

 

 

2018

 

 

2017

 

 

2016

 

Interest

 

$

6,340

 

 

$

6,117

 

 

$

6,019

 

Income taxes

 

$

15,327

 

 

$

25,085

 

 

$

19,314