Segment Information - Schedule of Segment Information by Regions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Services revenue
Services revenue	$ 404.4	$ 311.6	$ 1,135.2	$ 834.0
Total operating income (loss)	23.8	18.9	69.5	48.2
General and administrative expenses
General and administrative expenses	27.2	21.1	78.4	64.1
Depreciation and amortization
Depreciation and amortization	7.2	6.0	20.5	18.5
Operating Segments | Commercial
Services revenue
Services revenue	136.8	116.0	400.9	317.7
Total operating income (loss)	32.4	25.5	95.7	73.6
General and administrative expenses
General and administrative expenses	7.2	5.9	21.1	16.9
Depreciation and amortization
Depreciation and amortization	3.4	3.1	9.2	9.8
Operating Segments | Aviation
Services revenue
Services revenue	70.3	45.6	187.1	113.8
Total operating income (loss)	9.7	6.5	26.3	15.6
General and administrative expenses
General and administrative expenses	3.1	2.9	8.7	8.6
Depreciation and amortization
Depreciation and amortization	2.4	2.1	7.4	6.3
Segment Reconciling Items
Services revenue
Total operating income (loss)	(18.3)	(13.1)	(52.5)	(41.0)
General and administrative expenses
General and administrative expenses	16.9	12.3	48.6	38.6
Depreciation and amortization
Depreciation and amortization	1.4	0.8	3.9	2.4
Lease Type Contracts
Services revenue
Services revenue	72.2	59.7	205.4	153.3
Lease Type Contracts | Operating Segments | Commercial
Services revenue
Services revenue	68.6	56.9	194.9	147.1
Lease Type Contracts | Operating Segments | Aviation
Services revenue
Services revenue	3.6	2.8	10.5	6.2
Management Type Contracts
Services revenue
Services revenue	134.9	101.9	382.6	278.2
Management Type Contracts | Operating Segments | Commercial
Services revenue
Services revenue	68.2	59.1	206.0	170.6
Management Type Contracts | Operating Segments | Aviation
Services revenue
Services revenue	66.7	42.8	176.6	107.6
Reimbursed Management Type Contract Revenue
Services revenue
Services revenue	$ 197.3	$ 150.0	$ 547.2	$ 402.5