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Long-Term Debt (Minimum Repayments On Outstanding Borrowings Under Term Loans And Convertible Notes Excluding Discounts, Premium And Conversion Features) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Debt Instrument [Line Items]  
2012 $ 693,750
2013 93,750
2014 125,000
2015 762,500
2016 750,000
Thereafter 2,350,000
Total 4,775,000
U.S. Term A Loans [Member]
 
Debt Instrument [Line Items]  
2012 93,750
2013 93,750
2014 125,000
2015 187,500
2016 750,000
Thereafter   
Total 1,250,000
Senior Convertible Notes [Member]
 
Debt Instrument [Line Items]  
2012 600,000
2013   
2014   
2015   
2016   
Thereafter   
Total 600,000
Cash Convertible Notes [Member]
 
Debt Instrument [Line Items]  
2015 575,000
Thereafter   
Total 575,000
2017 Senior Notes [Member]
 
Debt Instrument [Line Items]  
2015   
Thereafter 550,000
Total 550,000
2018 Senior Notes [Member]
 
Debt Instrument [Line Items]  
2015   
Thereafter 800,000
Total 800,000
2020 Senior Notes [Member]
 
Debt Instrument [Line Items]  
2015   
Thereafter 1,000,000
Total $ 1,000,000