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SUPPLEMENTAL CASH FLOW INFORMATION (Tables)
6 Months Ended
Jun. 30, 2018
Supplemental Cash Flow Elements [Abstract]  
Schedule of Supplemental Cash Flow Information
The following table provides supplemental cash flow information:
 
Six Months Ended
June 30,
(dollars in thousands)
2018
 
2017
Cash paid for:
 
 
 
Interest
$
44,250

 
$
25,788

Income taxes
11,621

 
14,594

Non-cash investing activities:
 
 
 
Property and equipment accrued in accounts payable
$
595

 
$
40