Retirement Plans

3 Months Ended

Mar. 31, 2018

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 UK Plan. On May 31, 2010, we curtailed the future accrual of benefits for active employees under such 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, 2018 and 2017 were as follows (in thousands):



	For the three months ended March 31,
	2018			2017
Interest cost	$	2,099		$	2,045
Expected return on plan assets	(3,581		)	(3,204		)
Amortization of unrecognized loss	682			698
Net periodic pension cost (income)	$	(800	)	$	(461	)

Employer Contributions

For the three months ended March 31, 2018, our United Kingdom subsidiary contributed approximately $1.1 million to the UK Plan and anticipates contributing an additional $3.9 million during the remainder of 2018.