Restructuring and Other Costs - Schedule of Restructuring and Other Costs (Details) - Central Merger - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Business Acquisition [Line Items]
Restructuring and other costs	$ 0.2	$ 2.5
Cost of Services - Lease Type Contracts
Business Acquisition [Line Items]
Restructuring and other costs	0.0	0.2
Cost of Services - Lease Type Contracts | Commercial
Business Acquisition [Line Items]
Restructuring and other costs	0.0	0.2
Cost of Services - Management Type Contracts
Business Acquisition [Line Items]
Restructuring and other costs	0.0	1.6
Cost of Services - Management Type Contracts | Commercial
Business Acquisition [Line Items]
Restructuring and other costs	0.0	1.0
Cost of Services - Management Type Contracts | Aviation
Business Acquisition [Line Items]
Restructuring and other costs	0.0	0.6
General and Administrative Expenses
Business Acquisition [Line Items]
Restructuring and other costs	0.2	0.7
General and Administrative Expenses | Commercial
Business Acquisition [Line Items]
Restructuring and other costs	0.1	0.0
General and Administrative Expenses | Aviation
Business Acquisition [Line Items]
Restructuring and other costs	0.1	0.5
General and Administrative Expenses | Other
Business Acquisition [Line Items]
Restructuring and other costs	$ 0.0	$ 0.2