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Debt and Other Obligations (Scheduled Contractual Maturities) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Debt and Other Obligations [Abstract]  
2012 $ 32,684
2013 283,434
2014 631,662
2015 892,276
2016 23,711
Thereafter 5,094,539
Total Cash Obligations 6,958,306
Unamortized Discounts (72,607)
Total Debt and Other Obligations Outstanding $ 6,885,699