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Long-Term Debt (Details 3) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Debt Instrument [Line Items]    
2013 $ 1,519,483  
2014 1,549,057  
2015 1,063,539  
2016 1,102,119  
2017 744,174  
Thereafter 2,511,575  
Long Term Debt and Capital lease obligations $ 8,489,947 $ 8,495,853