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Pensions (Tables)
6 Months Ended
Jun. 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
June 30,
Six Months Ended
June 30,
2024202320242023
Service cost$0.2 $0.2 $0.5 $0.5 
Interest cost0.4 0.3 0.7 0.6 
Expected return on plan assets(0.3)(0.3)(0.6)(0.6)
Amortization of unrecognized loss— 0.1 0.1 0.1 
Amortization of prior service cost0.1 0.1 0.1 0.1 
Defined benefit plan expense before settlement income0.4 0.4 0.8 0.7 
Settlement income— (6.0)— (6.0)
Total pension expense (income)$0.4 $(5.6)$0.8 $(5.3)