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Commitments And Contingencies (Schedule Of Future Commitments) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Non-Cancelable Operating Leases [Abstract]  
2013 $ 380,288
2014 330,397
2015 316,951
2016 255,262
2017 210,444
Thereafter 1,283,847
Total 2,777,189
Non-Cancelable Contracts [Abstract]  
2013 561,837
2014 473,937
2015 418,056
2016 311,899
2017 154,668
Thereafter 450,526
Total 2,370,923
Capital Expenditure Commitments [Abstract]  
2013 80,143
2014 25,426
2015 21,273
2016 7,688
2017 11,112
Thereafter 932
Total 146,574
Employment Contracts Future Minimum Payments Due [Abstract]  
2013 85,762
2014 66,304
2015 60,383
2016 58,320
2017 17,536
Thereafter 0
Total $ 288,305