Leases - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Aug. 01, 2019
Lessee, Lease, Description [Line Items]
Lease term			15 years
Option to extend, term	20 years	20 years
Operating lease expense	$ 2.8	$ 8.7
Minimum
Lessee, Lease, Description [Line Items]
Lease term	1 year	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lease term	15 years	15 years