v3.26.1
Accumulated Other Comprehensive Loss (Details) - USD ($)
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Increase (Decrease) in Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Beginning balance $ 404,200,000 $ 356,400,000
Pension and OPEB activity, net of tax 1,200,000 (200,000)
Ending balance 402,400,000 373,900,000
Tax on currency translation as foreign earnings permanently reinvested 0 0
Total    
Increase (Decrease) in Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Beginning balance (22,000,000.0) (51,800,000)
Currency translation (8,000,000.0) 10,200,000
Pension and OPEB activity, net of tax (1,200,000) 200,000
Ending balance (31,200,000) (41,400,000)
Cumulative Translation Adjustment    
Increase (Decrease) in Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Beginning balance (20,300,000) (46,400,000)
Currency translation (8,000,000.0) 10,200,000
Ending balance (28,300,000) (36,200,000)
Pension and Postretirement Benefits    
Increase (Decrease) in Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Beginning balance (1,700,000) (5,400,000)
Pension and OPEB activity, net of tax (1,200,000) 200,000
Ending balance $ (2,900,000) $ (5,200,000)