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Accumulated Other Comprehensive Income (Loss) | 3 Months Ended
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Mar. 28, 2025
Equity [Abstract] |
Accumulated Other Comprehensive Income (Loss) | Accumulated Other Comprehensive Income (Loss) Accumulated other comprehensive income (loss) (“AOCI(L)”) is composed of adjustments to the Company’s pension and postretirement medical benefit plans and unrealized gains/losses on the Company’s short-term investments. Following is a summary of AOCI(L) for the first quarter of 2025 and the first quarter of 2024:
(in thousands) |  | December 31, 2024 |  | Pre-tax Activity |  | Tax Effect |  | March 28, 2025
Net pension activity: |  |  |  |  |  |  |  |
Actuarial gain |  | $ | 4,418 |  |  | $ | (9) |  |  | $ | 3 |  |  | $ | 4,412 |
Prior service costs |  | (85) |  |  | 4 |  |  | (1) |  |  | (82) |
Net postretirement benefits activity: |  |  |  |  |  |  |  |
Actuarial gain |  | 2,960 |  |  | — |  |  | — |  |  | 2,960 |
Prior service costs |  | (624) |  |  | — |  |  | — |  |  | (624) |
Unrealized gain on short-term investments |  | 25 |  |  | (14) |  |  | 3 |  |  | 14 |
Reclassification of stranded tax effects |  | (4,809) |  |  | — |  |  | — |  |  | (4,809) |
Total AOCI(L) |  | $ | 1,885 |  |  | $ | (19) |  |  | $ | 5 |  |  | $ | 1,871 |
(in thousands) |  | December 31, 2023 |  | Pre-tax Activity |  | Tax Effect |  | March 29, 2024
Net pension activity: |  |  |  |  |  |  |  |
Actuarial gain |  | $ | 533 |  |  | $ | — |  |  | $ | — |  |  | $ | 533 |
Prior service costs |  | (97) |  |  | 4 |  |  | (1) |  |  | (94) |
Net postretirement benefits activity: |  |  |  |  |  |  |  |
Actuarial gain |  | 721 |  |  | 26 |  |  | (6) |  |  | 741 |
Prior service costs |  | (624) |  |  | — |  |  | — |  |  | (624) |
Unrealized loss on short-term investments |  | — |  |  | (232) |  |  | 56 |  |  | (176) |
Reclassification of stranded tax effects |  | (4,809) |  |  | — |  |  | — |  |  | (4,809) |
Total AOCI(L) |  | $ | (4,276) |  |  | $ | (202) |  |  | $ | 49 |  |  | $ | (4,429) |

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/220/tableOfContent + Details
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