DEFINED-CONTRIBUTION SAVINGS PLANS

12 Months Ended

Dec. 31, 2013

Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]

DEFINED-CONTRIBUTION SAVINGS PLANS

DEFINED‑CONTRIBUTION SAVINGS PLANS

The Company maintains a defined‑contribution savings plan which is qualified under Section 401(k) of the Internal Revenue Code. The plan covers substantially all full-time U.S. employees. Participating employees may defer a portion of their pretax earnings, up to the Internal Revenue Service annual contribution limit. The Company's expense associated with matching employee contributions, including eBioscience, for the years ended December 31, 2013, 2012 and 2011 totaled $2.8 million, $3.0 million and $3.0 million, respectively. Company contributions to employees vest ratably over four years.