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Long-Term Debt (Debt Maturities) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Debt Disclosure [Abstract]    
2014 $ 1,563,378  
2015 1,051,912  
2016 1,474,827  
2017 1,247,158  
2018 728,276  
Thereafter 2,009,253  
Long Term Debt and Capital lease obligations $ 8,074,804 $ 8,489,947