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Supplemental Cash Flow Information (Cash Paid Or Received For Interest And Income Taxes) (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Supplemental Cash Flow Information [Abstract]    
Interest, net of capitalized interest $ 124,408 $ 227,189
Income taxes $ (7,844) $ 1,217