v2.4.0.8
Fair Value Disclosures (Estimated Fair Values and Carrying Amounts of Assets and Liabilities) (Details) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Cash and cash equivalents, carrying value $ 223,394,000 $ 441,364,000 $ 80,120,000 $ 112,531,000
Cash and cash equivalents, fair value 223,394,000 441,364,000    
Restricted cash, carrying value 188,526,000 580,938,000    
Restricted cash, fair value 188,526,000 580,938,000    
Long-term debt and other obligations, carrying amount 11,594,500,000 11,611,242,000    
Long-term debt and other obligations, fair value 11,892,587,000 12,438,032,000    
Fair Value, Inputs, Level 1 [Member]
        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Cash and cash equivalents, carrying value 1      
Restricted cash, carrying value 1      
Fair Value, Inputs, Level 2 [Member]
        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Long-term debt and other obligations, carrying amount $ 2