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Long-Term Debt (Tables)
 3 Months Ended
Mar. 31, 2020
Debt Disclosure [Abstract]  
Summary of Long-Term Debt
 
March 31, 2020
 
December 31, 2019
2013 Term Loan Facility outstanding principal balance
$
177,286

 
$
177,759

2013 Revolving Credit Facility borrowings
12,500

 
—

Finance lease liabilities
5,784

 
6,248

Less: Unamortized discount
(598
)
 
(922
)
Less: Deferred financing costs
(191
)
 
(294
)
Less: Current portion due within one year
(190,917
)
 
(178,433
)
Long-term portion
$
3,864

 
$
4,358