Retirement Plans

3 Months Ended

Mar. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Retirement Plans

Retirement Plans    

Our United Kingdom subsidiary has a defined benefit pension plan covering all eligible employees (the “UK Plan”); however, no individual joining the company after October 31, 2001 may participate in the plan. On May 31, 2010, we curtailed the future accrual of benefits for active employees under this plan.

Components of Net Periodic Pension Cost

The components of net periodic pension cost of the UK Plan for the three months ended March 31, 2016 and 2015 were as follows (in thousands):

	For the three months ended March 31,
	2016			2015
Interest cost	$	2,685		$	2,865
Expected return on plan assets	(3,701		)	(3,995		)
Amortization of unrecognized loss	532			623
Net periodic pension cost	$	(484	)	$	(507	)

Employer Contributions

For the three months ended March 31, 2016, our United Kingdom subsidiary contributed approximately $1.2 million to the UK Plan and anticipates contributing an additional $4.1 million during the remainder of 2016.