v2.4.0.6

Subsequent events (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Mar. 31, 2013 Subsequent Event | Feb. 22, 2013 Subsequent Event Endeka | Mar. 31, 2013 Subsequent Event Restricted stock units Executive and non executive personnel
Subsequent Events: |  |  |  |  |  |
Number of options for common stock granted (in shares) | 1,391,000 | 2,381,000 | 53,000 | 404,800 |  |
Exercise price of option for common stock granted (in dollars per share) | $ 8.29 | $ 13.02 | $ 2.85 | $ 6.03 |  |
Restricted stock units issued to executive and non executive personnel |  |  |  |  |  | 602,058
Amount of all outstanding stock of acquired entity |  |  |  |  | $ 5,300 |

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