Postretirement Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2024

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

Components of Net Periodic Benefit Cost

	UNITED STATES
(In thousands)	Three Months Ended March 31,
	2024			2023
Interest cost	$	1,651		$	1,731
Expected return on plan assets		(2,116	)		(2,133	)
Amortization of net actuarial loss		(3	)		(6	)
Net periodic benefit cost	$	(468	)	$	(408	)

	UNITED KINGDOM
(In thousands)	Three Months Ended March 31,
	2024			2023
Interest cost	$	161		$	164
Expected return on plan assets		(183	)		(170	)
Amortization of net actuarial loss		80			81
Net periodic benefit cost	$	58		$	75

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 March 31,
	2024		2023
Retirement savings contributions	$	2,125	$	2,048
Profit sharing contributions		848		707
Total defined contribution plan expenses	$	2,973	$	2,755