Pension and Other Postretirement Plans (Tables)

3 Months Ended

Mar. 31, 2021

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)		2021		2020
Pension Benefits
Components of net periodic benefit cost:
Service cost	$	1,422	$	1,316
Interest cost		2,272		3,023
Expected return on assets		(7,375)		(6,811)
Amortization of:
Prior service credit		(31)		(31)
Actuarial loss		1,580		1,286
Net periodic benefit (credit) cost	$	(2,132)	$	(1,217)
Postretirement Benefits
Components of net periodic benefit cost:
Service cost	$	351	$	311
Interest cost		384		573
Expected return on assets		(817)		(790)
Amortization of:
Transition obligation		1		1
Prior service credit		(380)		(667)
Actuarial loss		109		70
Net periodic benefit (credit) cost	$	(352)	$	(502)