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Long-Term Debt (Tables)
 6 Months Ended
Jun. 30, 2017
Debt Disclosure [Abstract]  
Schedule of Long-Term Debt
 
June 30, 2017
 
December 31, 2016
Senior secured notes
$
575,000

 
$
575,000

Unamortized debt issuance costs - senior secured notes
(45,177
)
 
(49,513
)
Asset-based revolving credit facility
74,247

 
208,469

Unamortized debt issuance costs - asset-based revolving credit facility
(3,673
)
 
(4,182
)
 
$
600,397

 
$
729,774