Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 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 June 30						Six Months Ended June 30
	2021			2020			2021			2020
Interest cost	$	1,177		$	1,421		$	2,354		$	2,842
Expected return on plan assets		(2,586	)		(2,437	)		(5,171	)		(4,874	)
Amortization of net actuarial loss		1,144			1,052			2,288			2,104
Net periodic benefit cost (income)	$	(265	)	$	36		$	(529	)	$	72

	UNITED KINGDOM
(In thousands)	Three Months Ended June 30						Six Months Ended June 30
	2021			2020			2021			2020
Interest cost	$	91		$	107		$	179		$	216
Expected return on plan assets		(81	)		(133	)		(162	)		(267	)
Amortization of net actuarial loss		18			19			35			38
Net periodic benefit cost (income)	$	28		$	(7	)	$	52		$	(13	)

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 June 30				Six Months Ended June 30
	2021		2020		2021		2020
Retirement savings contributions	$	1,978	$	1,950	$	4,017	$	3,708
Profit sharing contributions plan		1,865		1,483		3,731		2,458
Total defined contribution plan expenses	$	3,843	$	3,433	$	7,748	$	6,166