Leases - Narrative (Details) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Lessor, operating lease, term of contract	15 years 3 months	15 years 3 months
Weighted average remaining lease term in years, including the lease for which the right to use has not commenced	11 years 9 months 18 days	11 years 9 months 18 days
Operating lease cost	$ 3.8	$ 11.5
Minimum
Lessee, Lease, Description [Line Items]
Weighted average remaining lease term in years, including the lease for which the right to use has not commenced	1 year	1 year
Maximum
Lessee, Lease, Description [Line Items]
Weighted average remaining lease term in years, including the lease for which the right to use has not commenced	15 years 3 months	15 years 3 months