Pension and Other Postretirement Plans (Tables)

6 Months Ended

Jun. 30, 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				Six Months Ended
		June 30,				June 30,
(In thousands)		2019		2018		2019		2018
Pension Benefits
Components of net periodic benefit cost:
Service cost	$	1,221	$	1,404	$	2,362	$	2,861
Interest cost		3,742		3,222		7,194		6,430
Expected return on assets		(5,922)		(6,552)		(11,469)		(13,120)
Amortization of:
Prior service credit		(31)		(11)		(59)		(22)
Actuarial loss		1,985		1,341		3,714		2,639
Net periodic benefit (credit) cost	$	995	$	(596)	$	1,742	$	(1,212)
Postretirement Benefits
Components of net periodic benefit cost:
Service cost	$	334	$	310	$	553	$	642
Interest cost		865		648		1,442		1,306
Expected return on assets		(676)		(814)		(1,357)		(1,616)
Amortization of:
Transition obligation		1		-		2		1
Prior service credit		(662)		(667)		(1,330)		(1,334)
Actuarial loss		94		116		200		244
Net periodic benefit (credit) cost	$	(44)	$	(407)	$	(490)	$	(757)