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PENSION AND OTHER POSTRETIREMENT BENEFITS (Tables) | 9 Months Ended
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Sep. 30, 2025
Retirement Benefits [Abstract] |
Summary of the Components of the Net Pension Costs and Cumulative Other Comprehensive Loss Related to the Defined Benefit Pension Plans | The following table summarizes the components of the Company’s net periodic pension and benefit (credit) cost for domestic and foreign defined benefit pension plans and other postretirement benefits:
| Domestic Defined Benefit Pension Plan |  | Foreign Defined Benefit Pension Plans |  | Other Postretirement Benefits
| 2025 |  | 2024 |  | 2025 |  | 2024 |  | 2025 |  | 2024
Three Months Ended September 30: |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 0.7 |  |  | $ | 0.9 |  |  | $ | 1.1 |  |  | $ | 1.2 |  |  | $ | 0.1 |  |  | $ | 0.1 |
Interest cost | 1.3 |  |  | 1.3 |  |  | 3.1 |  |  | 3.0 |  |  | 1.7 |  |  | 1.7 |
Expected return on assets | (2.4) |  |  | (2.0) |  |  | (2.6) |  |  | (2.8) |  |  | — |  |  | — |
Amortization of prior service cost (credit) | 0.5 |  |  | 0.4 |  |  | — |  |  | — |  |  | (3.6) |  |  | (6.0) |
Amortization of actuarial gains | (0.5) |  |  | (0.1) |  |  | (0.3) |  |  | (0.3) |  |  | (0.6) |  |  | (0.1) |
Net periodic pension and benefit (credit) cost | $ | (0.4) |  |  | $ | 0.5 |  |  | $ | 1.3 |  |  | $ | 1.1 |  |  | $ | (2.4) |  |  | $ | (4.3) |
Nine Months Ended September 30: |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 2.1 |  |  | $ | 2.7 |  |  | $ | 3.3 |  |  | $ | 3.6 |  |  | $ | 0.3 |  |  | $ | 0.3 |
Interest cost | 3.9 |  |  | 3.7 |  |  | 9.3 |  |  | 9.0 |  |  | 5.1 |  |  | 5.1 |
Expected return on assets | (7.2) |  |  | (6.2) |  |  | (7.8) |  |  | (8.4) |  |  | — |  |  | — |
Amortization of prior service cost (credit) | 1.5 |  |  | 1.4 |  |  | — |  |  | (0.1) |  |  | (10.8) |  |  | (17.9) |
Amortization of actuarial gains | (1.5) |  |  | (0.2) |  |  | (0.9) |  |  | (0.8) |  |  | (1.8) |  |  | (0.3) |
Net periodic pension and benefit (credit) cost | $ | (1.2) |  |  | $ | 1.4 |  |  | $ | 3.9 |  |  | $ | 3.3 |  |  | $ | (7.2) |  |  | $ | (12.8) |

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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://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (q) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-5 Reference 2: 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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