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Goodwill and Identifiable Intangible Assets - Goodwill (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Goodwill [Roll Forward]    
Balance at the beginning of the period $ 1,238.0 $ 1,233.0
Acquisitions 17.5 3.1
Goodwill, Written off Related to Sale of Business Unit (68.2) (4.0)
Foreign currency translation of non-USD functional currency subsidiary goodwill (5.6) 5.9
Balance at the end of the period 1,181.7 1,238.0
Aviation    
Goodwill [Roll Forward]    
Balance at the beginning of the period 398.3 397.6
Acquisitions 17.5 0.0
Goodwill, Written off Related to Sale of Business Unit (59.5) 0.0
Foreign currency translation of non-USD functional currency subsidiary goodwill (1.9) 0.6
Balance at the end of the period 354.4 398.3
Land    
Goodwill [Roll Forward]    
Balance at the beginning of the period 839.7 835.3
Acquisitions 0.0 3.0
Goodwill, Written off Related to Sale of Business Unit (8.7) (4.0)
Foreign currency translation of non-USD functional currency subsidiary goodwill (3.8) 5.3
Balance at the end of the period $ 827.3 $ 839.7