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Non-operating Income (Expense) (Tables)
3 Months Ended
Mar. 31, 2025
Nonoperating Income (Expense) [Abstract]  
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
Quarter Ended March 31,
20252024
Interest expense$(3.4)$(1.7)
Amortization of debt issuance costs(0.6)(0.1)
Interest income0.6 0.6 
Interest expense, net(3.3)(1.2)
Non-operating pension and other postretirement employee benefits(0.3)0.3 
Total non-operating expense$(3.6)$(0.9)