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Supplemental Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2011
Supplemental Cash Flow Information [Abstract] |
Schedule Of Supplemental Cash Flow Information |
Years Ended December 31, |  | 2011 |  |  | 2010 |  |  | 2009 |
Interest paid |  | $ | 1,854 |  |  | $ | 1,348 |  |  | $ | 1,436 |
Income taxes net of refunds |  | $ | 45,137 |  |  | $ | 37,361 |  |  | $ | 14,018 |
Net assets of locations contributed to Carrier Enterprise I and II |  | $ | 14,769 |  |  |  | — |  |  | $ | 23,217 |
Non-cash capital contribution of inventory by noncontrolling interest |  |  | — |  |  |  | — |  |  | $ | 32,000 |
Common and Class B common stock issued for Carrier Enterprise I |  |  | — |  |  |  | — |  |  | $ | 151,056 |

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