Leases - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Lessor, Lease, Description [Line Items]
Right-of-use assets	$ 261.8		$ 261.8		$ 431.7
Lease impairment	16.7	$ 0.0	94.2	$ 0.0
Rent concessions cares act	8.9		8.9
Negotiable cost reductions cares act	18.3		18.3
Sublease income	0.4	$ 0.4	0.8	$ 1.1
Commercial
Lessor, Lease, Description [Line Items]
Lease impairment			94.2
Level 3
Lessor, Lease, Description [Line Items]
Right-of-use assets	267.8		267.8
Right-of-use asset, fair value	$ 173.6		$ 173.6