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Depreciation and Amortization | 6 Months Ended
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Jun. 30, 2013
Text Block [Abstract] |
Depreciation and Amortization |
4. | Depreciation and Amortization
Depreciation and amortization expense for property and equipment and intangible assets for the three and six months ended June 30, 2013 and 2012 was as follows (in thousands):
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Operating expenses |  | $ | 4,674 |  |  | $ | 4,062 |  |  | $ | 9,225 |  |  | $ | 8,093 |
Corporate general and administrative expenses |  |  | 75 |  |  |  | 87 |  |  |  | 149 |  |  |  | 168 |
Total depreciation and amortization expense |  | $ | 4,749 |  |  | $ | 4,149 |  |  | $ | 9,374 |  |  | $ | 8,261 |

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- Definition Depreciation and amortization. + References No definition available. + Details
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