Pension and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2021

Compensation And Retirement Disclosure [Abstract]

Contributions for Pension and Other Postretirement Benefits

Contributions to the Corporation’s employee benefit plans were as follows:

	Nine Months Ended September 30,
	2021		2020
U.S. defined benefit pension plans	$	0	$	281
Foreign defined benefit pension plans		483		332
Other postretirement benefits (e.g., net payments)		469		966
U.K. defined contribution pension plan		248		222
U.S. defined contribution plan		2,320		2,296

Net Periodic Pension and Other Postretirement Benefit Costs

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

	Three Months Ended September 30,						Nine Months Ended September 30,
U.S. Defined Benefit Pension Plans	2021			2020			2021			2020
Service cost	$	60		$	37		$	182		$	167
Interest cost		1,337			1,776			4,012			5,381
Expected return on plan assets		(3,248	)		(3,232	)		(9,746	)		(9,621	)
Amortization of prior service cost		6			10			17			31
Amortization of actuarial loss		658			455			1,974			1,570
Net benefit income	$	(1,187	)	$	(954	)	$	(3,561	)	$	(2,472	)

	Three Months Ended September 30,						Nine Months Ended September 30,
Foreign Defined Benefit Pension Plans	2021			2020			2021			2020
Service cost	$	111		$	127		$	285		$	332
Interest cost		207			265			626			781
Expected return on plan assets		(485	)		(496	)		(1,461	)		(1,465	)
Amortization of prior service credit		(77	)		(72	)		(231	)		(212	)
Amortization of actuarial loss		162			177			489			522
Net benefit (income) expense	$	(82	)	$	1		$	(292	)	$	(42	)

	Three Months Ended September 30,						Nine Months Ended September 30,
Other Postretirement Benefit Plans	2021			2020			2021			2020
Service cost	$	61		$	56		$	183		$	169
Interest cost		45			71			136			211
Amortization of prior service credit		(258	)		(255	)		(773	)		(763	)
Amortization of actuarial gain		(19	)		(34	)		(58	)		(104	)
Net benefit income	$	(171	)	$	(162	)	$	(512	)	$	(487	)