Postretirement benefits

3 Months Ended

Mar. 31, 2022

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Postretirement benefits

We have historically provided certain health care benefits for a large number of retired U.S. employees. In addition to our retiree health care plan, we also have a U.S. supplemental executive retirement plan. Further information regarding our postretirement benefit plans can be found under the caption “Note 13: Postretirement Benefits” in the Notes to Consolidated Financial Statements appearing in the 2021 Form 10-K.

Postretirement benefit income is included in other income on the consolidated statements of comprehensive income and consisted of the following components:

	Quarter Ended March 31,
(in thousands)	2022		2021
Interest cost	$	280	$	242
Expected return on plan assets	(1,866)		(1,875)
Amortization of prior service credit	(355)		(355)
Amortization of net actuarial losses	225		407
Net periodic benefit income	$	(1,716)	$	(1,581)