v3.25.4
Comprehensive Income - Schedule of Changes in Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Accumulated Other Comprehensive Income Loss [Line Items]      
Balance $ 436.1 $ 402.2 $ 329.5
Pension plan settlement charge 82.8    
Balance 379.2 436.1 402.2
Pension and Other Postretirement Benefits Plans      
Accumulated Other Comprehensive Income Loss [Line Items]      
Balance (66.4) (63.7) (67.9)
Other comprehensive income (loss) before reclassifications (1.0) (3.6) 0.0
Pension plan settlement charge [1] 82.8    
Reclassifications, net of tax 62.1 0.9 4.2
Pension plan remeasurement [1] 1.0    
Amortization of net actuarial loss [2] 1.2 1.3 4.5
Reclassification of translation adjustment   0.0  
Less: Income tax 22.9 0.4 0.3
Reclassifications, net of tax 62.1 0.9 4.2
Net change in accumulated other comprehensive loss 61.1 (2.7) 4.2
Balance (5.3) (66.4) (63.7)
Translation Adjustments      
Accumulated Other Comprehensive Income Loss [Line Items]      
Balance (15.5) (14.2) (15.3)
Other comprehensive income (loss) before reclassifications 1.2 (1.6) 1.1
Pension plan settlement charge [1] 0.0    
Reclassifications, net of tax 0.0 0.3 0.0
Pension plan remeasurement [1] 0.0    
Amortization of net actuarial loss [2] 0.0 0.0 0.0
Reclassification of translation adjustment   0.5  
Less: Income tax 0.0 0.2 0.0
Reclassifications, net of tax 0.0 0.3 0.0
Net change in accumulated other comprehensive loss 1.2 (1.3) 1.1
Balance (14.3) (15.5) (14.2)
Accumulated Other Comprehensive Loss      
Accumulated Other Comprehensive Income Loss [Line Items]      
Balance (81.9) (77.9) (83.2)
Other comprehensive income (loss) before reclassifications 0.2 (5.2) 1.1
Pension plan settlement charge [1] 82.8    
Reclassifications, net of tax 62.1 1.2 4.2
Pension plan remeasurement [1] 1.0    
Amortization of net actuarial loss [2] 1.2 1.3 4.5
Reclassification of translation adjustment   0.5  
Less: Income tax 22.9 0.6 0.3
Reclassifications, net of tax 62.1 1.2 4.2
Net change in accumulated other comprehensive loss 62.3 (4.0) 5.3
Balance $ (19.6) $ (81.9) $ (77.9)
[1] As a result of the Plan Settlement, the Company remeasured the Plan’s assets and obligations and recorded a $1.0 million remeasurement to accumulated other comprehensive loss on the audited Consolidated Balance Sheets. The Company then recognized a non-cash settlement charge of $82.8 million during the year ended December 31, 2025, due to the recognition of unrealized accumulated Plan losses previously reported within accumulated other comprehensive loss on the audited Consolidated Balance Sheets (see Note 7, Retirement Plans). The related tax effects associated with the Plan Settlement are included in income tax expense on the Company’s audited Consolidated Statements of Operations.
[2] These accumulated other comprehensive loss components are included in the calculation of net periodic pension and other postretirement benefits plans expense (income) recognized in investment and other loss (income), net, on the audited Consolidated Statements of Operations (see Note 7, Retirement Plans).