Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2022

Retirement Benefits [Abstract]

Components of net periodic benefit cost

Tables 10.1 provides the components of net periodic benefit cost for our pension, supplemental executive retirement and other postretirement benefit plans for the three months ended March 31, 2022 and 2021.

Components of net periodic benefit cost
Table	10.1
		Three Months Ended March 31,
		Pension and Supplemental Executive Retirement Plans				Other Postretirement Benefit Plans
(In thousands)		2022		2021		2022		2021
Service cost		$	1,757	$	1,664	$	348	$	364
Interest cost		2,877		2,810		177		164
Expected return on plan assets		(4,952)		(5,202)		(2,625)		(2,215)
Amortization of net actuarial losses (gains)		1,183		1,550		(754)		(439)
Amortization of prior service cost (credit)		(53)		(60)		122		53
Net periodic benefit cost (benefit)		$	812	$	762	$	(2,732)	$	(2,073)