v3.25.1
Accumulated Other Comprehensive Income (Loss) - Schedule of Components of Accumulated Other Comprehensive (Loss) Income (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance $ 2,984.1 $ 2,702.4
Other comprehensive (loss) income before reclassifications and income taxes 57.9 (49.0)
Amounts reclassified from accumulated other comprehensive (loss) income before income taxes (3.2) (2.2)
Income tax benefit 8.7 0.1
Other comprehensive income (loss), net of tax 63.4 (51.1)
Noncontrolling interest (0.6) 0.4
Net current period other comprehensive income (loss), net of income taxes, noncontrolling interest and sale of shares of Timken India Limited 62.8 (50.7)
Ending balance 3,089.0 2,735.0
Total    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance (301.7) (146.9)
Ending balance (238.9) (197.6)
Foreign currency translation adjustments    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance (344.6) (193.8)
Other comprehensive (loss) income before reclassifications and income taxes 59.8 (50.7)
Amounts reclassified from accumulated other comprehensive (loss) income before income taxes 0.0 0.0
Income tax benefit 7.3 0.0
Other comprehensive income (loss), net of tax 67.1 (50.7)
Noncontrolling interest (0.6) 0.4
Net current period other comprehensive income (loss), net of income taxes, noncontrolling interest and sale of shares of Timken India Limited 66.5 (50.3)
Ending balance (278.1) (244.1)
Pension and other postretirement liability adjustments    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance 38.7 44.7
Other comprehensive (loss) income before reclassifications and income taxes (0.1) 0.0
Amounts reclassified from accumulated other comprehensive (loss) income before income taxes (2.0) (2.0)
Income tax benefit 0.5 0.5
Other comprehensive income (loss), net of tax (1.6) (1.5)
Noncontrolling interest 0.0 0.0
Net current period other comprehensive income (loss), net of income taxes, noncontrolling interest and sale of shares of Timken India Limited (1.6) (1.5)
Ending balance 37.1 43.2
Change in fair value of derivative financial instruments    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance 4.2 2.2
Other comprehensive (loss) income before reclassifications and income taxes (1.8) 1.7
Amounts reclassified from accumulated other comprehensive (loss) income before income taxes (1.2) (0.2)
Income tax benefit 0.9 (0.4)
Other comprehensive income (loss), net of tax (2.1) 1.1
Noncontrolling interest 0.0 0.0
Net current period other comprehensive income (loss), net of income taxes, noncontrolling interest and sale of shares of Timken India Limited (2.1) 1.1
Ending balance $ 2.1 $ 3.3