Pension and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2020

Compensation And Retirement Disclosure [Abstract]

Contributions for Pension and Other Postretirement Benefits

Contributions to the Corporation’s employee benefit plans are outlined below. Under the current provisions of the CARES Act, the Corporation has deferred, as of September 30, 2020, $3,794 of its contributions to employee benefit plans, which will be due in January 2021.

	Nine Months Ended September 30,
	2020		2019
U.S. defined benefit pension plans	$	281	$	977
Foreign defined benefit pension plans		332		277
Other postretirement benefits (e.g., net payments)		966		757
U.K. defined contribution pension plan		222		262
U.S. defined contribution plan		2,296		2,622

Net Periodic Pension and Other Postretirement Benefit Costs

Net periodic pension and other postretirement benefit costs include the following components:

	Three Months Ended September 30,						Nine Months Ended September 30,
U.S. Defined Benefit Pension Plans	2020			2019			2020			2019
Service cost	$	37		$	192		$	167		$	577
Interest cost		1,776			2,255			5,381			6,784
Expected return on plan assets		(3,232	)		(3,145	)		(9,621	)		(9,434	)
Amortization of prior service cost		10			55			31			61
Amortization of actuarial loss		455			461			1,570			1,037
Special termination benefits		0			3,694			0			3,694
Curtailment loss		0			1,641			0			1,641
Net benefit (income) expense	$	(954	)	$	5,153		$	(2,472	)	$	4,360

	Three Months Ended September 30,						Nine Months Ended September 30,
Foreign Defined Benefit Pension Plans	2020			2019			2020			2019
Service cost	$	127		$	115		$	332		$	314
Interest cost		265			338			781			1,047
Expected return on plan assets		(496	)		(561	)		(1,465	)		(1,736	)
Amortization of prior service credit		(72	)		(68	)		(212	)		(212	)
Amortization of actuarial loss		177			157			522			486
Net benefit expense (income)	$	1		$	(19	)	$	(42	)	$	(101	)

	Three Months Ended September 30,						Nine Months Ended September 30,
Other Postretirement Benefit Plans	2020			2019			2020			2019
Service cost	$	56		$	74		$	169		$	230
Interest cost		71			98			211			309
Amortization of prior service credit		(255	)		(532	)		(763	)		(1,553	)
Amortization of actuarial gain		(34	)		(97	)		(104	)		(286	)
Curtailment gain		0			(7,639	)		0			(7,654	)
Net benefit income	$	(162	)	$	(8,096	)	$	(487	)	$	(8,954	)