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Accumulated Other Comprehensive Loss (Tables) | 9 Months Ended
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Sep. 30, 2024
Equity [Abstract] |
Schedule of Accumulated Balances Related to Each Component of Accumulated Other Comprehensive Income (Loss) | The changes in accumulated other comprehensive loss by component were as follows:
(Dollars and accompanying footnotes in millions) | Foreign Currency Translation Adjustments |  | Pension and Other Postretirement Benefits(1) |  | Total
Balance as of December 31, 2023 | $ | (56.8) |  |  | $ | (9.6) |  |  | $ | (66.4) |
Other comprehensive income (loss) before reclassifications | 10.9 |  |  | — |  |  | 10.9 |
Amounts reclassified from accumulated other comprehensive loss | — |  |  | 0.3 |  |  | 0.3 |
Net current-period other comprehensive income (loss) | 10.9 |  |  | 0.3 |  |  | 11.2 |
Balance as of September 30, 2024 | $ | (45.9) |  |  | $ | (9.3) |  |  | $ | (55.2) |
Balance as of December 31, 2022 | $ | (75.6) |  |  | $ | (9.6) |  |  | $ | (85.2) |
Other comprehensive income (loss) before reclassifications | (3.9) |  |  | — |  |  | (3.9) |
Amounts reclassified from accumulated other comprehensive loss | — |  |  | 0.3 |  |  | 0.3 |
Net current-period other comprehensive income (loss) | (3.9) |  |  | 0.3 |  |  | (3.6) |
Balance as of September 30, 2023 | $ | (79.5) |  |  | $ | (9.3) |  |  | $ | (88.8) |
(1) Net of taxes of $1.7 million and $1.8 million as of September 30, 2024 and December 31, 2023, respectively. Net of taxes of $1.8 million and $1.9 million as of September 30, 2023 and December 31, 2022, respectively.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-14A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481674/830-30-50-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20 + Details
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