Goodwill (Details) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Goodwill [Roll Forward]
Balance at the beginning of the period	$ 861.9
Acquisitions	388.0
Foreign currency translation of non-USD functional currency subsidiary goodwill	(16.5)
Balance at the end of the period	1,233.3
Aviation Segment
Goodwill [Roll Forward]
Balance at the beginning of the period	400.1
Acquisitions	0.0
Foreign currency translation of non-USD functional currency subsidiary goodwill	(2.8)
Balance at the end of the period	397.3
Land Segment
Goodwill [Roll Forward]
Balance at the beginning of the period	461.8
Acquisitions	388.0
Foreign currency translation of non-USD functional currency subsidiary goodwill	(13.8)
Balance at the end of the period	$ 836.0