Leases - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Lessee, Lease, Description [Line Items]
Operating lease expense	$ 9.7	$ 7.9
Variable lease, cost	3.4	2.6
Operating lease payments	$ 10.5	$ 6.2
Minimum [Member]
Lessee, Lease, Description [Line Items]
Operating lease, weighted average remaining lease term	1 year
Maximum [member]
Lessee, Lease, Description [Line Items]
Operating lease, weighted average remaining lease term	14 years