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Debt (Tables)
9 Months Ended
Sep. 30, 2017
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments
Our debt consists of the following (amounts in thousands):
 
September 30, 2017
 
December 31, 2016
Senior secured revolving credit facility
$
97,733

 
$
46,000

Senior notes
300,000

 
300,000

 
397,733

 
346,000

Less unamortized debt issuance costs
(5,132
)
 
(6,527
)
 
$
392,601

 
$
339,473