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v2.3.0.11

Debt (Tables) | 6 Months Ended
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Jun. 30, 2011
Debt |
Schedule of components of interest expenses recorded on the notes |
|  | Three months ended |  | Six months ended |
|  | June 30, |  | June 30, |
|  | 2011 |  | 2010 |  | 2011 |  | 2010 |
Contractual interest |  | $ | 1,013 |  | $ | 1,089 |  | $ | 2,025 |  | $ | 2,178 |
Accretion of the discount on the Notes |  | 490 |  | 760 |  | 1,260 |  | 1,501 |
Total interest expense on the Notes |  | $ | 1,503 |  | $ | 1,849 |  | $ | 3,285 |  | $ | 3,679 |
Effective interest rate |  | 6.1 | % | 7.0 | % | 6.7 | % | 7.0 | %
Schedule of Carrying amounts of the liability and equity components of convertible notes |
|  | June 30, |  | December 31, |
|  | 2011 |  | 2010 |
Carrying amount of the equity component |  | $ | — |  | $ | 16,318 |
Principal balance of the liability component |  | $ | — |  | $ | 105,574 |
Less: unamortized discount |  | — |  | 4,436 |
Net carrying value of the liability component |  | $ | — |  | $ | 101,138 |

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