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Description of Business and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2012
Description of Business and Summary of Significant Accounting Policies [Abstract] |
Range of Estimated useful lives | The range of estimated useful lives is as follows:
Leasehold and land improvements |  |  | 10-30 years |
Buildings |  |  | 10-30 years |
Parts and service equipment |  |  | 7-10 years |
Office equipment and fixtures |  |  | 3-10 years |
Company vehicles |  |  | 3-5 years |

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- Definition Property plant and equipment estimated useful lives. + References No definition available. + Details
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