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Defined Contribution Plan
12 Months Ended
Dec. 31, 2015
Defined Contribution Plan [Abstract]  
Defined Contribution Plan

15. Defined Contribution Plan

The Company has several 401(k) profit sharing plans covering all employees with three months of service. For certain plans, the Company makes matching contributions. The Company may also make discretionary contributions of up to 50% of employee contributions. The Company did not make any discretionary contributions for the years ended December 31, 2015, 2014 and 2013. The Company matching contributions totaled $0.9 million, $0.7 million and $0.5 million, respectively, for the years ended December 31, 2015, 2014 and 2013.