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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
Dec. 31, 2016
Dec. 31, 2015
Ending December 31, [Abstract]    
2017 $ 6,168  
2018 6,168  
2019 6,168  
2020 6,168  
2021 3,769  
Total future payments 28,441  
Less payments related to:    
Maintenance 7,659  
Interest 1,864  
Present value of future minimum payments $ 18,918 $ 22,466