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Supplemental Disclosures (Schedule Of Cash Paid For Interest And Income Taxes) (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Supplemental Disclosures [Abstract]    
Interest $ 1,110,139 $ 1,028,973
Income taxes $ 44,989 $ 77,548