Pensions and Other Postretirement Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2022

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The composition of the net periodic benefit cost for the three months ended March 31, 2022 and 2021, was as follows:

	Pension plans				Other postretirement benefits
(in thousands)	2022		2021		2022		2021
Components of net periodic benefit cost:
Service cost	$	355	$	545	$	29	$	33
Interest cost	1,417		1,338		305		276
Expected return on assets	(1,706)		(1,606)		—		—
Amortization of prior service cost/(credit)	(1)		3		(1,122)		(1,122)
Amortization of net actuarial loss	500		544		471		565
Net periodic benefit cost	$	565	$	824	$	(317)	$	(248)