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Long-Term Debt (Tables)
 6 Months Ended
Jun. 30, 2016
Debt Disclosure [Abstract]  
Long-term debt
 
June 30,
2016
 
December 31,
2015
Senior debt:
 
 
 
Revolving credit facility
$
123,500

 
$
143,149

Term loan
288,750

 
296,250

Total debt
412,250

 
439,399

Less: Current maturities
(15,000
)
 
(15,000
)
Less: Debt issuance costs
(5,872
)
 
(6,569
)
Total long-term debt, net of current maturities
$
391,378

 
$
417,830