Employee Retirement Benefit Plans

12 Months Ended

Dec. 31, 2015

Compensation And Retirement Disclosure [Abstract]

Employee Retirement Benefit Plans

8. Employee Retirement Benefit Plans

Defined Contribution-Type Plans. We sponsor defined contribution plans covering substantially all our U.S.-based employees. Participants may contribute up to 100% of their annual wages, subject to certain limitations, as pretax, salary deferral contributions. We make certain matching, and at our discretion, service-based contributions to the plan. The expense related to matching and service-related contributions for 2015, 2014, and 2013 was $9.7 million, $9.0 million, and $9.7 million, respectively. We also have defined contribution-type plans for certain of our non-U.S.-based employees. The total contributions made to these plans in 2015, 2014, and 2013 were $3.7 million, $5.0 million, and $4.8 million, respectively.