Leases - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Lessee, Lease, Description [Line Items]
Operating lease expense	$ 36.1	$ 25.6
Operating leases not yet commenced	$ 290.6
Minimum
Lessee, Lease, Description [Line Items]
Operating leases not yet commenced, term of contract	2 years
Maximum
Lessee, Lease, Description [Line Items]
Operating leases not yet commenced, term of contract	15 years