Long-Term Debt - Schedule of Maturities of Long-term Debt (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Payments    
2016 $ 8,681  
2017 6,773  
2018 4,826  
2019 1,539  
2020 355,269  
Thereafter 4,061  
Total long-term debt before unamortized debt discounts and deferred debt issuance costs 381,149 $ 372,909
Unamortized Debt Discount    
2016 (476)  
2017 (193)  
2018 (89)  
2019 (12)  
2020 0  
Thereafter 0  
Unamortized debt discounts (770) (1,014)
Debt Issuance Costs    
2016 (1,706)  
2017 (1,706)  
2018 (1,706)  
2019 (1,706)  
2020 (568)  
Thereafter 0  
Deferred debt issuance costs $ (7,392) $ (9,098)