Postretirement Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2018

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
	2018			2017			2018			2017
Interest cost	$	1,539		$	1,661		$	148		$	143
Expected return on plan assets		(2,321	)		(2,321	)		(231	)		(192	)
Amortization of net actuarial loss		937			788			57			92
Net periodic benefit cost (income)	$	155		$	128		$	(26	)	$	43

Defined Contribution Plan Expenses for Company's Retirement Savings Plans and Profit Sharing Plan

Defined contribution plan expenses for the Company’s retirement savings and profit sharing plans were as follows:

(In thousands)	Three Months Ended March 31
	2018		2017
Retirement savings plans	$	1,757	$	1,259
Profit sharing plan		942		1,843
Total  defined contribution expense	$	2,699	$	3,102