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Pensions (Tables) | 9 Months Ended
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Sep. 30, 2024
Retirement Benefits [Abstract] |
Schedule of Components of Net Pension Expense (Income) | The following table presents the components of the Company’s net pension expense:
(dollars in millions) | Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Service cost | $ | 0.3 |  |  | $ | 0.2 |  |  | $ | 0.8 |  |  | $ | 0.7 |
Interest cost | 0.3 |  |  | 0.3 |  |  | 1.0 |  |  | 0.9 |
Expected return on plan assets | (0.3) |  |  | (0.3) |  |  | (0.9) |  |  | (0.9) |
Amortization of unrecognized loss | 0.1 |  |  | — |  |  | 0.2 |  |  | 0.1 |
Amortization of prior service cost | — |  |  | — |  |  | 0.1 |  |  | 0.1 |
Defined benefit plan expense before settlement income | 0.4 |  |  | 0.2 |  |  | 1.2 |  |  | 0.9 |
Settlement income | — |  |  | — |  |  | — |  |  | (6.0) |
Total pension expense (income) | $ | 0.4 |  |  | $ | 0.2 |  |  | $ | 1.2 |  |  | $ | (5.1) |

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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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