Retirement Savings Plan

6 Months Ended

Jun. 30, 2014

Postemployment Benefits [Abstract]

RETIREMENT SAVINGS PLAN

RETIREMENT SAVINGS PLAN

The Company maintains a retirement savings plan (which qualifies under Section 401(k) of the U.S. Internal Revenue Code) covering all eligible U.S. employees. Under the plan, employees may elect to contribute up to 75% of base salary, subject to ERISA limitations. The Company maintains a Safe Harbor Match and is required to make matching contributions equal to 100% of the employee’s contribution up to 4% of each employee’s salary. In addition, the Company provides a noncontributory defined contribution based on a percentage of each eligible employee's salary. Total plan expenses recognized for the three and six months ended June 30, 2014 and 2013 were $1.6 million and $0.8 million, and $3.0 million and $2.1 million, respectively.