Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2021

Retirement Benefits [Abstract]

Schedule of Employee Benefit Plans

The components of net period benefit cost for the three months ended March 31, 2021 and 2020, respectively, are as follows:

	Three Months Ended March 31, 2021
	Retirement Income Plan		National Service-Related Pension Plan		Other Post-Retirement Benefits		Superannuation		Total
Components of net periodic benefit cost:	(In thousands)
Service cost	$	—	$	—	$	—	$	16	$	16
Interest cost	237		234		2		5		478
Expected return on plan assets	(596)		(427)		—		(19)		(1,042)
Amortization of net loss	218		163		—		—		381
Net pension benefit cost	$	(141)	$	(30)	$	2	$	2	$	(167)

	Three Months Ended March 31, 2020
	Retirement Income Plan		National Service-Related Pension Plan		Other Post-Retirement Benefits		Superannuation		Total
Components of net periodic benefit cost:	(In thousands)
Service cost	$	—	$	—	$	—	$	14	$	14
Interest cost	315		279		4		6		604
Expected return on plan assets	(500)		(366)		—		(16)		(882)
Amortization of net loss	254		152		—		—		406
Amortization of prior service cost	—		—		—		8		8
Net pension benefit cost	$	69	$	65	$	4	$	12	$	150