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Accumulated Other Comprehensive Loss
 9 Months Ended
Sep. 30, 2024
Equity [Abstract]  
Accumulated Other Comprehensive Loss Accumulated Other Comprehensive 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)$(66.4)
Other comprehensive income (loss) before reclassifications10.9 — 10.9 
Amounts reclassified from accumulated other comprehensive loss— 0.3 0.3 
Net current-period other comprehensive income (loss)10.9 0.3 11.2 
Balance as of September 30, 2024$(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.