Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plan

Employee Benefit Plan
12 Months Ended
Dec. 31, 2016
Postemployment Benefits [Abstract]  
Employee Benefit Plan
The Company offers pre-tax and after-tax 401(k) savings plan options under which eligible U.S. employees may elect to have a portion of their salary deferred and contributed to the plan. Employer matching contributions are determined by management and are discretionary. Employer matching contributions were $1.5 million, $1.3 million, and $1.2 million respectively, in the years ended December 31, 2016, 2015, and 2014. For new hires, employer contributions vest ratably over the first two years of employment.