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Debt (Tables)
9 Months Ended
Sep. 30, 2018
Debt Disclosure [Abstract]  
Schedule of Debt
The Company’s indebtedness was comprised as follows:

September 30,
2018

December 31, 2017
Revolving credit agreement
$
102,990

 
$

6.50% Notes due 2024
900,000

 
900,000

Debt issuance costs
(15,350
)
 
(17,587
)
 
987,640

 
882,413

Obligations under capital leases
600

 
706

 
988,240

 
883,119

Less: Current portion of long-term debt
360

 
313

 
$
987,880

 
$
882,806