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Statement Of Cash Flow Information (Tables)
 12 Months Ended
Dec. 31, 2015
Supplemental Cash Flow Information [Abstract]  
Schedule of supplemental cash flow information
The following table provides supplemental cash flow information (in thousands): 
 
Year Ended December 31,
 
2015
 
2014
 
2013
 
 
 
 
 
 
Interest paid, net of interest capitalized
$
14,555

 
$
11,628

 
$
39,040

Income taxes paid
$
16,905

 
$
70,509

 
$
113,331