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Operations and Summary of Significant Accounting Policies (Comprehensive Income (Loss)) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income (loss) $ (197.1) $ 95.0 $ (31.3)
AOCI Attributable To Parent      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income (loss), before tax amount (184.6) 92.0 (33.4)
Other comprehensive income (loss), income taxes (10.2) 3.0 1.2
Other comprehensive income (loss) (194.8) 95.0 (32.2)
Defined pension and postretirement benefit plans      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income (loss), before tax amount 26.7 (10.0) (2.0)
Other comprehensive income (loss), income taxes (6.9) 2.6 1.2
Other comprehensive income (loss) 19.8 (7.4) (0.8)
Deferred gains and losses on derivatives      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income (loss), before tax amount 13.0 (0.3) (0.5)
Other comprehensive income (loss), income taxes (3.3) 0.4 0.0
Other comprehensive income (loss) 9.7 0.1 (0.5)
Foreign currency translation adjustments      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income (loss), before tax amount (224.3) 102.3 (30.9)
Other comprehensive income (loss), income taxes 0.0 0.0 0.0
Other comprehensive income (loss) (224.3) 102.3 (30.9)
AOCI Attributable to Noncontrolling Interest      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income (loss) (2.3) 0.0 0.9
Defined pension and postretirement benefit plans      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income (loss) 0.0 0.0 0.0
Deferred gains and losses on derivatives      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income (loss) 0.0 0.0 0.0
Foreign currency translation adjustments      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income (loss) $ (2.3) $ 0.0 $ 0.9