Leases - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lessor, Lease, Description [Line Items]
Right-of-use assets	$ 201.2	$ 235.1
Lease impairment	3.6	97.1	$ 0.0
Rent concessions cares act	16.6	26.0
Sublease income	1.4	1.6
Lease Impairment
Lessor, Lease, Description [Line Items]
Lease impairment	3.6
General and Administrative Expense
Lessor, Lease, Description [Line Items]
Lease impairment		1.6
Commercial
Lessor, Lease, Description [Line Items]
Lease impairment	3.5
Aviation
Lessor, Lease, Description [Line Items]
Lease impairment	0.1
Commercial and Aviation
Lessor, Lease, Description [Line Items]
Lease impairment		98.7
Level 3
Lessor, Lease, Description [Line Items]
Right-of-use assets	5.6	278.9
Right-of-use asset, fair value	$ 2.0	$ 180.2