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Retirement Plans	12 Months Ended
Retirement Plans	Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Retirement Plans	12. Retirement Plans The Company has a 401(k) plan to provide tax deferred salary deductions for all eligible employees. Participants may make voluntary contributions to the 401(k) plan, limited by certain Internal Revenue Service restrictions. The Company is responsible for the administrative costs of the 401(k) plan. The Company does not match employee contributions. The Company complies with the requirement of maintaining a retirement plan for employees in the Philippines. This plan is a non-contributory and defined benefit type that provides retirement to employees equal to one month salary for every year of credited service. The benefits are paid in a lump sum amount upon retirement from the Company. Total defined benefit liability was $0.4 million and $0.3 million as of December 31, 2016 and 2015, respectively. Total retirement expense was $0.1 million in each of the fiscal years 2016, 2015, and 2014.