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Goodwill
 9 Months Ended
Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill
4. Goodwill
The following table provides information regarding changes in goodwill during the nine months ended September 30, 2022 and 2021 (in millions):
Aviation
Segment		Land
Segment		Total
As of December 31, 2021$400.1 $461.8 $861.9 
2022 acquisition (1)
— 388.0 388.0 
Foreign currency translation of non-USD functional currency subsidiary goodwill(4.5)(24.3)(28.7)
As of September 30, 2022$395.6 $825.5 $1,221.1 
(1)See Note 3. Acquisitions for additional information.