Pension Plans and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2020

Retirement Benefits [Abstract]

Domestic and Foreign Pension and Postretirement Defined Benefit Plans

The components of pension and postretirement benefits cost (credit) for the three-month periods ended March 31, 2020 and 2019 were as follows (in thousands):

	Three Months Ended March 31,
	2020			2019
Pension Benefits Cost (Credit):
Service cost	$	1,214		$	1,130
Interest cost	6,687			8,320
Expected return on assets	(10,063		)	(9,452		)
Amortization of prior service benefit	(51		)	6
Total net pension benefits (credit) cost	$	(2,213	)	$	4
Postretirement Benefits Cost:
Service cost	$	26		$	24
Interest cost	468			549
Total net postretirement benefits cost	$	494		$	573
Total net pension and postretirement benefits (credit) cost	$	(1,719	)	$	577