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Postretirement benefits
 9 Months Ended
Sep. 30, 2025
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
Postretirement benefits
NOTE 10: POSTRETIREMENT BENEFITS

We have historically offered certain health care benefits to a large number of our eligible retired U.S. employees. In addition to our retiree health care plan, we also maintain an inactive U.S. supplemental executive retirement plan. Further information regarding our postretirement benefit plans can be found under the caption “Note 12: Postretirement Benefits” in the Notes to Consolidated Financial Statements located in the 2024 Form 10-K.

Postretirement benefit income is included in other income, net on the consolidated statements of comprehensive income and consisted of the following components:
Quarter Ended
September 30,		Nine Months Ended
September 30,
(in thousands)2025202420252024
Interest cost$397 $435 $1,191 $1,306 
Expected return on plan assets(2,137)(2,099)(6,410)(6,296)
Amortization of prior service credit(355)(355)(1,066)(1,066)
Amortization of net actuarial losses212 334 636 1,001 
Net periodic benefit income$(1,883)$(1,685)$(5,649)$(5,055)