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Employee Benefit Plans - Summary of Components of Net Periodic Benefit Cost and Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive (Loss) Income: |  |  |
Tax related expense (benefit) plans included in other comprehensive income | $ 1,000 | $ (2,000) | $ 6,000
Defined benefit pension plans |  |  |
Net Periodic Benefit Cost (Credit): |  |  |
Service cost | 3,388 | 3,371 | 4,010
Interest cost | 20,181 | 20,966 | 12,081
Expected return on plan assets | (18,738) | (20,372) | (19,242)
Amortization of prior service cost (credit) | 194 | 150 | 155
Recognized actuarial loss (gain) | 7,781 | 5,893 | 8,996
Settlement (gain) loss | 0 | (59) | 19
Curtailment gain | 0 | 0 | (326)
Net periodic benefit cost (credit) | 12,806 | 9,949 | 5,693
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive (Loss) Income: |  |  |
Net actuarial (gain) loss | (5,086) | 904 | (23,501)
Prior service cost | 131 | 1,169 | 1,022
Amortization of prior service (cost) credit | (194) | (150) | (155)
Total recognized in other comprehensive (income) loss | (5,149) | 1,923 | (22,634)
Total recognized in net periodic benefit cost (credit) and other comprehensive (loss) income | 7,657 | 11,872 | (16,941)
Postretirement benefit plans |  |  |
Net Periodic Benefit Cost (Credit): |  |  |
Service cost | 2 | 1 | 2
Interest cost | 180 | 179 | 89
Expected return on plan assets | 0 | 0 | 0
Amortization of prior service cost (credit) | (2,038) | (2,038) | (2,038)
Recognized actuarial loss (gain) | (190) | (226) | (100)
Settlement (gain) loss | 0 | 0 | 0
Curtailment gain | 0 | 0 | 0
Net periodic benefit cost (credit) | (2,046) | (2,084) | (2,047)
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive (Loss) Income: |  |  |
Net actuarial (gain) loss | (433) | 311 | (922)
Prior service cost | 0 | 0 | 0
Amortization of prior service (cost) credit | 2,038 | 2,038 | 2,038
Total recognized in other comprehensive (income) loss | 1,605 | 2,349 | 1,116
Total recognized in net periodic benefit cost (credit) and other comprehensive (loss) income | $ (441) | $ 265 | $ (931)

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- Definition Amount recognized in net periodic benefit cost (credit) and other comprehensive (income) loss. + 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 + Details
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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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