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Employee Benefit Plan	12 Months Ended
Employee Benefit Plan	Dec. 31, 2013
Employee Benefit Plan
Employee Benefit Plan	18. Employee Benefit Plan We have a 401(k) plan covering substantially all of our employees. Under our 401(k) plan, employees may elect to make contributions to the plan up to a maximum of 60% of their compensation, subject to limits under the Code. We match 50% of our employee’s contributions, up to 3% of the employee’s compensation. Our aggregate matching contributions each year have been immaterial to our results of operations.