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Segment Information (Details 2) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Revenues and adjusted segment income by reportable segment |  |  |  |
Total revenues | $ 3,401,409 | $ 2,898,441 | $ 10,006,631 | $ 8,466,560
Segment Income | 56,844 | 70,186 | 210,820 | 182,223
Retail |  |  |  |
Revenues and adjusted segment income by reportable segment |  |  |  |
Total revenues | 3,401,409 | 2,898,441 | 10,006,631 | 8,466,560
Segment Income | 48,932 | 61,711 | 191,873 | 166,356
PAG Investments |  |  |  |
Revenues and adjusted segment income by reportable segment |  |  |  |
Segment Income | $ 7,912 | $ 8,475 | $ 18,947 | $ 15,867

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