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Revolving Credit Facility and Long-Term Debt - Future Minimum Payments on Long-term Debt (Details)
$ in Thousands
Dec. 31, 2016
USD ($)
Debt Disclosure [Abstract]  
Remaining 2017 $ 7,500
2018 19,498
2019 15,000
2020 17,500
2021 178,500
Total long-term debt $ 237,998