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Accumulated Other Comprehensive Loss | 3 Months Ended
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Mar. 31, 2026
Equity [Abstract] |
Accumulated Other Comprehensive Loss | Accumulated Other Comprehensive Loss The changes in accumulated other comprehensive loss by component were as follows:
(Dollars in millions) | Foreign Currency Translation Adjustments |  | Pension and Other Postretirement Benefits(1) |  | Total
Balance as of December 31, 2025 | $ | (39.5) |  |  | $ | (7.6) |  |  | $ | (47.1) |
Other comprehensive loss before reclassifications | (8.0) |  |  | — |  |  | (8.0) |
Amounts reclassified from accumulated other comprehensive loss | — |  |  | 0.1 |  |  | 0.1 |
Other comprehensive income (loss) | (8.0) |  |  | 0.1 |  |  | (7.9) |
Balance as of March 31, 2026 | $ | (47.5) |  |  | $ | (7.5) |  |  | $ | (55.0) |
Balance as of December 31, 2024 | $ | (86.7) |  |  | $ | (8.6) |  |  | $ | (95.3) |
Other comprehensive income before reclassifications | 17.6 |  |  | — |  |  | 17.6 |
Amounts reclassified from accumulated other comprehensive loss | — |  |  | 0.1 |  |  | 0.1 |
Other comprehensive income | 17.6 |  |  | 0.1 |  |  | 17.7 |
Balance as of March 31, 2025 | $ | (69.1) |  |  | $ | (8.5) |  |  | $ | (77.6) |
(1) Net of taxes of $1.2 million as of March 31, 2026 and December 31, 2025. Net of taxes of $1.5 million as of March 31, 2025 and December 31, 2024.

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/220/tableOfContent + Details
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