Leases - Lessee Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Lessee, Lease, Description [Line Items]
Lessee, operating lease, renewal term	15 years		15 years
Lessee, operating lease, lease not yet commenced, commitment amount	$ 0.3		$ 0.3
Operating cash flows from operating leases	$ 1.5	$ 1.4	$ 3.0	$ 2.8
Minimum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, remaining lease term	1 month		1 month
Lessee, operating lease, term	1 year		1 year
Maximum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, remaining lease term	7 years		7 years
Lessee, operating lease, term	5 years		5 years