Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2023

Retirement Benefits [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,
	2023			2022			2023			2022
Interest cost	$	1,731		$	1,235		$	3,462		$	2,469
Expected return on plan assets		(2,133	)		(2,201	)		(4,266	)		(4,401	)
Amortization of net actuarial loss		(6	)		577			(12	)		1,154
Net periodic benefit cost	$	(408	)	$	(389	)	$	(816	)	$	(778	)

	UNITED KINGDOM
(In thousands)	Three Months Ended June 30,						Six Months Ended June 30,
	2023			2022			2023			2022
Interest cost	$	169		$	95		$	333		$	196
Expected return on plan assets		(175	)		(100	)		(345	)		(207	)
Amortization of net actuarial loss		84			2			165			5
Net periodic benefit cost	$	78		$	(3	)	$	153		$	(6	)

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,
	2023		2022		2023		2022
Retirement savings contributions	$	2,170	$	1,947	$	4,218	$	4,145
Profit sharing contributions		163		1,959		870		3,425
Total defined contribution plan expenses	$	2,333	$	3,906	$	5,088	$	7,570