Pension and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2019

Compensation And Retirement Disclosure [Abstract]

Contributions for Pension and Other Postretirement Benefits

Contributions were as follows:

	Nine Months Ended September 30,
	2019		2018
U.S. defined benefit pension plans	$	977	$	0
Foreign defined benefit pension plans		277		1,308
Other postretirement benefits (e.g., net payments)		757		880
U.K. defined contribution pension plan		262		270
U.S. defined contribution plan		2,622		1,991

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	2019			2018			2019			2018
Service cost	$	192		$	193		$	577		$	1,002
Interest cost		2,255			2,181			6,784			6,292
Expected return on plan assets		(3,145	)		(3,356	)		(9,434	)		(9,959	)
Amortization of prior service cost		55			10			61			35
Amortization of actuarial loss		461			308			1,037			1,163
Special termination benefits		3,694			0			3,694			0
Curtailment loss		1,641			0			1,641			21
Net benefit expense (income)	$	5,153		$	(664	)	$	4,360		$	(1,446	)

	Three Months Ended September 30,						Nine Months Ended September 30,
Foreign Defined Benefit Pension Plans	2019			2018			2019			2018
Service cost	$	115		$	65		$	314		$	340
Interest cost		338			340			1,047			1,058
Expected return on plan assets		(561	)		(629	)		(1,736	)		(1,959	)
Amortization of prior service credit		(68	)		(82	)		(212	)		(255	)
Amortization of actuarial loss		157			182			486			566
Net benefit income	$	(19	)	$	(124	)	$	(101	)	$	(250	)

	Three Months Ended September 30,						Nine Months Ended September 30,
Other Postretirement Benefit Plans	2019			2018			2019			2018
Service cost	$	74		$	114		$	230		$	342
Interest cost		98			124			309			371
Amortization of prior service credit		(532	)		(402	)		(1,553	)		(1,205	)
Amortization of actuarial gain		(97	)		(58	)		(286	)		(173	)
Curtailment gain		(7,639	)		0			(7,654	)		0
Net benefit income	$	(8,096	)	$	(222	)	$	(8,954	)	$	(665	)