Pensions and Other Postretirement Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2023

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The composition of the net periodic benefit cost for the three months ended March 31, 2023 and 2022, was as follows:

	Pension plans				Other postretirement benefits
(in thousands)	2023		2022		2023		2022
Components of net periodic benefit cost:
Service cost	$	281	$	355	$	15	$	29
Interest cost	1,063		1,417		468		305
Expected return on assets	(971)		(1,706)		—		—
Amortization of prior service cost/(credit)	(8)		(1)		(1,023)		(1,122)
Amortization of net actuarial loss	139		500		207		471
Net periodic benefit cost/(credit)	$	504	$	565	$	(333)	$	(317)