Restructuring - Summary of Restructuring Activities (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Restructuring Reserve [Roll Forward]
Restructuring charges	$ 0.2	$ 0.0
Restructuring, 2023 Initiative
Restructuring Reserve [Roll Forward]
Beginning balance	5.7
Restructuring charges	0.2		$ 7.2
Payments for Restructuring	(2.6)
Ending balance	3.3		5.7
Operating Segments | Aviation Segment | Restructuring, 2023 Initiative
Restructuring Reserve [Roll Forward]
Beginning balance	1.2
Restructuring charges	0.0
Payments for Restructuring	(0.4)
Ending balance	0.8		1.2
Operating Segments | Land | Restructuring, 2023 Initiative
Restructuring Reserve [Roll Forward]
Beginning balance	3.7
Restructuring charges	0.2
Payments for Restructuring	(1.6)
Ending balance	2.3		3.7
Operating Segments | Marine | Restructuring, 2023 Initiative
Restructuring Reserve [Roll Forward]
Beginning balance	0.0
Restructuring charges	0.0
Payments for Restructuring	0.0
Ending balance	0.0		0.0
Corporate | Restructuring, 2023 Initiative
Restructuring Reserve [Roll Forward]
Beginning balance	0.9
Restructuring charges	(0.1)
Payments for Restructuring	(0.5)
Ending balance	$ 0.3		$ 0.9