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Long-Term Debt (Tables)
 6 Months Ended
Jun. 30, 2017
Debt Disclosure [Abstract]  
Summary of Long-Term Debt
 
June 30, 2017
 
December 31, 2016
2013 Term Loan Facility outstanding principal balance
$
200,959

 
$
202,000

Less: Unamortized discount
(3,386
)
 
(3,851
)
Less: Deferred financing costs
(1,150
)
 
(1,324
)
Less: Current portion due within one year
(2,082
)
 
(2,082
)
Long-term portion
$
194,341

 
$
194,743