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Goodwill and Identifiable Intangible Assets - Goodwill (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Goodwill [Roll Forward]    
Balance at the beginning of the period $ 1,233.0 $ 861.9
Acquisitions 3.1 388.7
Goodwill, Written off Related to Sale of Business Unit (4.0)  
Foreign currency translation of non-USD functional currency subsidiary goodwill 5.9 (17.6)
Balance at the end of the period 1,238.0 1,233.0
Aviation    
Goodwill [Roll Forward]    
Balance at the beginning of the period 397.6 400.1
Acquisitions 0.0 0.7
Goodwill, Written off Related to Sale of Business Unit 0.0  
Foreign currency translation of non-USD functional currency subsidiary goodwill 0.6 (3.2)
Balance at the end of the period 398.3 397.6
Land    
Goodwill [Roll Forward]    
Balance at the beginning of the period 835.3 461.8
Acquisitions 3.0 388.0
Goodwill, Written off Related to Sale of Business Unit (4.0)  
Foreign currency translation of non-USD functional currency subsidiary goodwill 5.3 (14.4)
Balance at the end of the period $ 839.7 $ 835.3