Leases - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Lessor, Lease, Description [Line Items]
Right-of-use assets	$ 235.1	$ 431.7
Lease impairment	97.1	0.0
Rent concessions cares act	26.0	0.0
Negotiable cost reductions cares act	31.3
Sublease income	1.6	$ 2.0
General and Administrative Expense
Lessor, Lease, Description [Line Items]
Lease impairment	1.6
Commercial
Lessor, Lease, Description [Line Items]
Lease impairment	98.7
Level 3
Lessor, Lease, Description [Line Items]
Right-of-use assets	278.9
Right-of-use asset, fair value	$ 180.2