Postretirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2018

Compensation And Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Cost

Components of Net Periodic Benefit Cost

	UNITED STATES
(In thousands)	Three Months Ended September 30						Nine Months Ended September 30
	2018			2017			2018			2017
Interest cost	$	1,566		$	1,665		$	4,645		$	4,988
Expected return on plan assets		(2,320	)		(2,323	)		(6,962	)		(6,966	)
Amortization of net actuarial loss		987			738			2,860			2,314
Net periodic benefit cost	$	233		$	80		$	543		$	336

	UNITED KINGDOM
(In thousands)	Three Months Ended September 30						Nine Months Ended September 30
	2018			2017			2018			2017
Interest cost	$	138		$	151		$	430		$	441
Expected return on plan assets		(216	)		(203	)		(673	)		(593	)
Amortization of net actuarial loss		53			97			166			284
Net periodic benefit cost (income)	$	(25	)	$	45		$	(77	)	$	132

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

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

(In thousands)	Three Months Ended September 30				Nine Months Ended September 30
	2018		2017		2018		2017
Retirement savings plans	$	1,738	$	1,275	$	5,201	$	3,758
Profit sharing plan		759		1,308		2,769		5,259
Total  defined contribution expense	$	2,497	$	2,583	$	7,970	$	9,017