401(k) Plan	12 Months Ended
Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract]
401(k) Plan	17. 401(k) Plan The Company maintains a qualified 401(k) plan (the “401(k) Plan”) for its U.S. employees. The 401(k) Plan covers U.S. employees who meet certain eligibility requirements. Under the terms of the 401(k) Plan, the employees may elect to make tax-deferred contributions through payroll deductions within statutory and plan limits, and the Company may elect to make non-elective discretionary contributions. The Company did not contribute any additional non-elective discretionary match during the years ended December 31, 2015, 2014 and 2013. The Company may also make optional contributions to the 401(k) Plan for any plan year at its discretion. Expense recognized by the Company for matching contributions related to the 401(k) Plan was $1.6 million, $1.5 million and $1.2 million for the years ended December 31, 2015, 2014 and 2013, respectively.

401(k) Plan

12 Months Ended

Dec. 31, 2015

Compensation and Retirement Disclosure [Abstract]

17. 401(k) Plan

The Company maintains a qualified 401(k) plan (the “401(k) Plan”) for its U.S. employees. The 401(k) Plan covers U.S. employees who meet certain eligibility requirements. Under the terms of the 401(k) Plan, the employees may elect to make tax-deferred contributions through payroll deductions within statutory and plan limits, and the Company may elect to make non-elective discretionary contributions. The Company did not contribute any additional non-elective discretionary match during the years ended December 31, 2015, 2014 and 2013. The Company may also make optional contributions to the 401(k) Plan for any plan year at its discretion. Expense recognized by the Company for matching contributions related to the 401(k) Plan was $1.6 million, $1.5 million and $1.2 million for the years ended December 31, 2015, 2014 and 2013, respectively.