Employee Benefit Plans

12 Months Ended

Dec. 31, 2012

Compensation Related Costs [Abstract]

Employee Benefit Plans

Employee Benefit Plans

401(k) Plan

In January 1999, we adopted a defined contribution retirement plan under Section 401(k) of the Internal Revenue Code for our U.S. employees.  This plan covers substantially all U.S. employees who meet minimum age and service requirements and allows participants to defer a portion of their annual compensation on a pre-tax basis.  In 2009, our Board of Directors authorized us to match 50% of our employee’s salary deferral contributions up to a 6% of the employee’s eligible compensation effective 2010.  We contributed approximately $1.9 million, $1.8 million and $1.6 million to the 401(k) plan during 2012, 2011 and 2010, respectively.

Israeli Severance Funds

Under the Israeli severance fund law, we are required to make severance payments to dismissed employees and employees leaving employment in certain circumstances.  The funding is calculated based on the salary of the employee multiplied by the number of years of employment as of the applicable balance sheet date.  Our Israeli employees are entitled to one month’s salary for each year of employment, or a pro-rata portion thereof.  We fund the liability through monthly deposits into severance funds, and the values of these contributions are recorded in other long-term current assets.

As of December 31, 2012 and 2011 the accrued severance funds liability was approximately $2.7 million and $2.2 million, respectively.