Postretirement benefits

6 Months Ended

Jun. 30, 2022

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

Postretirement benefits

We have historically provided certain health care benefits for eligible 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 June 30,				Six Months Ended June 30,
(in thousands)	2022		2021		2022		2021
Interest cost	$	280	$	242	$	561	$	484
Expected return on plan assets	(1,866)		(1,875)		(3,731)		(3,748)
Amortization of prior service credit	(355)		(355)		(711)		(711)
Amortization of net actuarial losses	225		407		450		814
Net periodic benefit income	$	(1,716)	$	(1,581)	$	(3,431)	$	(3,161)