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6. Equity (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2013
Equity Details  
Total equity, Beginning $ 277,143
Stock based compensation 2,956
Net effect of shares issued upon exercise of stock options and withheld related to net share settlement of RSUs (205)
Foreign currency translation adjustment (20)
Employee benefit plan adjustment 3
Liquidation of minority interest (22)
Net loss (46,023)
Total equity, Ending $ 233,832