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Supplemental Cash Flow Information (Tables) | 6 Months Ended
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Jun. 30, 2012
Supplemental Cash Flow Information [Abstract] |
Components of Supplemental Cash Flow Information | Supplemental cash flow information is as follows (in thousands):
|  | Six Months Ended June 30, |
|  | 2012 |  |  | 2011 |
Supplemental non-cash investing and financing activities: |  |  |  |  |  |  |  |
Fair value of warrant liability reclassified to additional paid-in-capital |  | $ | 13,973 |  |  | $ | — |
Value of preferred stock exchanged in conversion to common stock |  |  | — |  |  |  | 11,205 |
Value of common stock issued in payment of convertible notes |  |  | — |  |  |  | 5,165 |
Value of common stock issued in payment of preferred stock dividends |  |  | — |  |  |  | 3,254 |
Value of common stock issued in payment of term loan debt |  |  | — |  |  |  | 1,398 |
Property and equipment acquired through capital leases |  |  | 873 |  |  |  | 365 |
Supplemental cash payment information: |  |  |  |  |  |  |  |
Interest paid |  | $ | 2,950 |  |  | $ | 4,732 |
Income taxes paid, net |  |  | 8,574 |  |  |  | 617 |

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