Goodwill - Schedule of Changes in Carrying Amounts of Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2020	Dec. 31, 2021
Goodwill [Line Items]
Acquisitions	$ 16.3
Foreign currency translation	0.3
Goodwill	602.7		$ 586.1
Accumulated impairment losses	(59.5)		(59.5)
Total	543.2		526.6
Commercial
Goodwill [Line Items]
Acquisitions	10.1
Foreign currency translation	(0.2)
Goodwill	387.0		377.1
Total	387.0		377.1
Aviation
Goodwill [Line Items]
Acquisitions	6.2
Foreign currency translation	0.5
Goodwill	215.7		209.0
Accumulated impairment losses	(59.5)		(59.5)
Total	$ 156.2		$ 149.5
Impairment		$ (59.5)