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Long-Term Debt And Other Long-Term Liabilities Long-Term Debt And Other Long-Term Liabilities (Capital Leases) (Details) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Ending June 30,    
2017 $ 6,168  
2018 6,168  
2019 6,168  
2020 6,168  
2021 and thereafter 6,853  
Total future payments 31,525  
Less payments related to:    
Maintenance 8,552  
Interest 2,263  
Present value of future minimum payments $ 20,710 $ 22,466