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Postretirement benefits (Tables) | 9 Months Ended
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Sep. 30, 2024
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract] |
Components of net periodic benefit income | Postretirement benefit income is included in other income, net on the consolidated statements of comprehensive income (loss) and consisted of the following components:
|  | Quarter Ended September 30, |  | Nine Months Ended September 30,
(in thousands) |  | 2024 |  | 2023 |  | 2024 |  | 2023
Interest cost |  | $ | 435 |  |  | $ | 496 |  |  | $ | 1,306 |  |  | $ | 1,489 |
Expected return on plan assets |  | (2,099) |  |  | (1,830) |  |  | (6,296) |  |  | (5,490) |
Amortization of prior service credit |  | (355) |  |  | (355) |  |  | (1,066) |  |  | (1,066) |
Amortization of net actuarial losses |  | 334 |  |  | 568 |  |  | 1,001 |  |  | 1,705 |
Net periodic benefit income |  | $ | (1,685) |  |  | $ | (1,121) |  |  | $ | (5,055) |  |  | $ | (3,362) |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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