Pension and Other Postretirement Plans (Tables)

3 Months Ended

Mar. 31, 2019

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Periodic Benefit Costs

The following table presents the components of net periodic benefit costs recognized.

		Three Months Ended
		March 31,
(In thousands)		2019		2018
Pension Benefits
Components of net periodic benefit cost:
Service cost	$	1,141	$	1,457
Interest cost		3,452		3,208
Expected return on assets		(5,547)		(6,568)
Amortization of:
Prior service credit		(28)		(11)
Actuarial loss		1,729		1,298
Net periodic benefit cost (credit)	$	747	$	(616)
Postretirement Benefits
Components of net periodic benefit cost:
Service cost	$	219	$	332
Interest cost		577		658
Expected return on assets		(681)		(802)
Amortization of:
Transition obligation		1		1
Prior service credit		(667)		(667)
Actuarial loss		106		128
Net periodic benefit (credit) cost	$	(445)	$	(350)