Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2017

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
	2017			2016			2017			2016
Interest cost	$	1,662		$	1,730		$	3,323		$	3,459
Expected return on plan assets		(2,322	)		(2,254	)		(4,643	)		(4,508	)
Amortization of net actuarial loss		788			882			1,576			1,764
Net periodic benefit cost	$	128		$	358		$	256		$	715

	UNITED KINGDOM
(In thousands)	Three Months Ended June 30						Six Months Ended June 30
	2017			2016			2017			2016
Interest cost	$	147		$	194		$	290		$	387
Expected return on plan assets		(198	)		(238	)		(390	)		(476	)
Amortization of net actuarial loss		95			20			187			40
Net periodic benefit cost (income)	$	44		$	(24	)	$	87		$	(49	)

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 June 30				Six Months Ended June 30
	2017		2016		2017		2016
Retirement savings plans	$	1,224	$	1,254	$	2,483	$	2,545
Profit sharing plan		2,108		1,786		3,951		3,503
Total  defined contribution expense	$	3,332	$	3,040	$	6,434	$	6,048