Postretirement Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2021

Compensation And Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Cost

Components of Net Periodic Benefit Cost

	UNITED STATES						UNITED KINGDOM
(In thousands)	Three Months Ended March 31						Three Months Ended March 31
	2021			2020			2021			2020
Interest cost	$	1,177		$	1,421		$	88		$	109
Expected return on plan assets		(2,586	)		(2,437	)		(81	)		(134	)
Amortization of net actuarial loss		1,144			1,052			17			19
Net periodic benefit cost	$	(265	)	$	36		$	24		$	(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 March 31
	2021		2020
Retirement savings contributions	$	2,039	$	1,758
Profit sharing contributions		1,866		975
Total defined contribution plan expenses	$	3,905	$	2,733