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RETIREMENT PLANS - Schedule of post-retirement health benefit expense (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Defined Benefit Plan Disclosure |  |  |
Service cost | $ 565 | $ 628 | $ 1,190
Interest cost | 3,788 | 3,824 | 2,826
Net Periodic Benefit Cost | 583 | 1,325 | 365
Net loss (gain) during the period | (6,063) | (1,761) | (5,323)
Total recognized in other comprehensive (income) loss | (6,498) | (2,513) | (6,582)
Total recognized net periodic pension cost and other comprehensive income | (5,915) | (1,188) | (6,217)
Postretirement Health Coverage |  |  |
Defined Benefit Plan Disclosure |  |  |
Service cost | 16 | 21 | 34
Interest cost | 137 | 153 | 111
Amortization of net actuarial loss (gain) | 79 | 53 | 0
Net Periodic Benefit Cost | 74 | 121 | 145
Net loss (gain) during the period | (471) | 34 | (758)
Amortization of prior service cost | 79 | 53 | 0
Total recognized in other comprehensive (income) loss | (392) | 87 | (758)
Total recognized net periodic pension cost and other comprehensive income | $ (318) | $ 208 | $ (613)

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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480535/715-20-45-3A Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-18 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-6 + Details
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