Postretirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2021

Compensation And Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Cost

Components of Net Periodic Benefit Cost

	UNITED STATES
(In thousands)	Three Months Ended September 30						Nine Months Ended September 30
	2021			2020			2021			2020
Interest cost	$	1,149		$	1,409		$	3,503		$	4,251
Expected return on plan assets		(2,590	)		(2,435	)		(7,761	)		(7,309	)
Amortization of net actuarial loss		1,045			1,092			3,333			3,196
Net periodic benefit cost (income)	$	(396	)	$	66		$	(925	)	$	138

	UNITED KINGDOM
(In thousands)	Three Months Ended September 30						Nine Months Ended September 30
	2021			2020			2021			2020
Interest cost	$	90		$	111		$	269		$	327
Expected return on plan assets		(80	)		(137	)		(242	)		(404	)
Amortization of net actuarial loss		18			20			53			58
Net periodic benefit cost (income)	$	28		$	(6	)	$	80		$	(19	)

Defined Contribution Plan Expenses for Company's Qualified Contribution Plans

Defined contribution plan expenses for the Company’s qualified contribution plans were as follows:

(In thousands)	Three Months Ended September 30				Nine Months Ended September 30
	2021		2020		2021		2020
Retirement savings contributions	$	2,055	$	1,813	$	6,072	$	5,521
Profit sharing contributions plan		1,376		1,633		5,107		4,090
Total defined contribution plan expenses	$	3,431	$	3,446	$	11,179	$	9,611