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Accumulated Other Comprehensive Loss (Tables)
12 Months Ended
Dec. 31, 2023
Equity [Abstract]  
Schedule of Changes in Accumulated Other Comprehensive Income (Loss)
The changes in accumulated other comprehensive loss by component for each of the fiscal years in the two-year period ended December 31, 2023 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, 2021$(35.6)$(9.6)$(45.2)
Other comprehensive income (loss) before reclassifications(40.0)(0.2)(40.2)
Amounts reclassified to earnings— 0.2 0.2 
Net other comprehensive income (loss) for period(40.0)— (40.0)
Balance as of December 31, 2022(75.6)(9.6)(85.2)
Other comprehensive income (loss) before reclassifications18.8 (0.4)18.4 
Amounts reclassified to earnings 0.4 0.4 
Net other comprehensive income (loss) for period18.8  18.8 
Balance as of December 31, 2023$(56.8)$(9.6)$(66.4)
(1) Net of taxes of $1.8 million, $1.9 million and $2.1 million for the years ended December 31, 2023, 2022 and 2021, respectively.
Schedule of Reclassification of Accumulated Other Comprehensive Income (Loss)
The impacts to the consolidated statements of operations related to items reclassified to earnings were as follows:
Years Ended December 31,
(Dollars in millions)Financial Statement Line Item20232022
Amortization/settlement of pension and other postretirement benefits
Pension settlement charges(1)
(0.1)— 
Other income (expense), net(1)
(0.4)(0.4)
Income tax (expense) benefit0.1 0.2 
Net income$(0.4)$(0.2)
(1) These accumulated other comprehensive loss components are included in the computation of net periodic pension cost. For additional details, refer to “Note 8 – Pension Benefits, Other Postretirement Benefits and Employee Savings and Investment Plan.”