Retirement Plans

3 Months Ended

Mar. 31, 2020

Retirement Benefits [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 UK Plan. On May 31, 2010, we curtailed the future accrual of benefits for active employees under such plan. We also sponsor three domestic retirement plans in which participation by new individuals is frozen.

Components of Net Periodic Pension Cost

The components of net periodic pension cost (income) of the UK Plan for the three months ended March 31, 2020 and 2019 were as follows (in thousands): 

	For the three months ended March 31,
	2020			2019
Interest cost	$	1,596		$	2,039
Expected return on plan assets	(2,997		)	(3,116		)
Amortization of unrecognized loss	595			600
Net periodic pension cost (income)	$	(806	)	$	(477	)

The net periodic pension cost associated with the domestic plans was approximately $0.1 million for each of the three months ended March 31, 2020 and 2019.

Employer Contributions

For the three months ended March 31, 2020, our United Kingdom subsidiary contributed approximately $1.0 million to the UK Plan and anticipates contributing an additional $3.5 million during the remainder of 2020. No contributions were made to the domestic plans for the three months ended March 31, 2020.