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Debt (Tables)
 6 Months Ended
Jun. 30, 2017
Debt Disclosure [Abstract]  
Schedule of Debt
The Company’s indebtedness was comprised as follows:

June 30,
2017

December 31, 2016
Revolving credit agreement
$
26,664

 
$
54,425

6.50% Notes due 2024
900,000

 
900,000

Debt issuance costs
(18,009
)
 
(18,420
)
 
908,655

 
936,005

Obligations under capital leases
750

 
431

 
909,405

 
936,436

Less: Current portion of long-term debt
289

 
228

 
$
909,116

 
$
936,208