Segment Information - Schedule of Segment Information by Regions (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Services revenue
Services revenue	$ 349.8	$ 246.7
Total operating income (loss)	20.1	11.0
General and administrative expenses
General and administrative expenses	24.5	21.0
Depreciation and amortization
Depreciation and amortization	6.8	6.3
Operating Segments | Commercial
Services revenue
Services revenue	131.2	97.7
Total operating income (loss)	28.6	21.7
General and administrative expenses
General and administrative expenses	6.1	5.0
Depreciation and amortization
Depreciation and amortization	3.0	3.4
Operating Segments | Aviation
Services revenue
Services revenue	53.2	31.0
Total operating income (loss)	8.1	3.1
General and administrative expenses
General and administrative expenses	2.7	3.0
Depreciation and amortization
Depreciation and amortization	2.9	2.1
Segment Reconciling Items
Services revenue
Total operating income (loss)	(16.6)	(13.8)
General and administrative expenses
General and administrative expenses	15.7	13.0
Depreciation and amortization
Depreciation and amortization	0.9	0.8
Lease Type Contracts
Services revenue
Services revenue	62.6	42.7
Lease Type Contracts | Operating Segments | Commercial
Services revenue
Services revenue	59.2	41.4
Lease Type Contracts | Operating Segments | Aviation
Services revenue
Services revenue	3.4	1.3
Management Type Contracts
Services revenue
Services revenue	121.8	86.0
Management Type Contracts | Operating Segments | Commercial
Services revenue
Services revenue	72.0	56.3
Management Type Contracts | Operating Segments | Aviation
Services revenue
Services revenue	49.8	29.7
Reimbursed Management Type Contract Revenue
Services revenue
Services revenue	$ 165.4	$ 118.0