Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2020

Retirement Benefits [Abstract]

Schedule of Employee Benefit Plans

The components of net period benefit cost for the three months ended March 31, 2020 and 2019, respectively, are as follows:

	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

	Three Months Ended March 31, 2019
	Retirement Income Plan			National Service-Related Pension Plan			Other Post-Retirement Benefits			Superannuation			Total
Components of net periodic benefit cost:	(In thousands)
Service cost	$	—		$	—		$	—		$	20		$	20
Interest cost	397			311			6			13			727
Expected return on plan assets	(440		)	(294		)	—			(19		)	(753		)
Amortization of net loss	377			141			(1		)	—			517
Amortization of prior service cost	—			—			—			7			7
Net pension benefit cost	$	334		$	158		$	5		$	21		$	518