Leases - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Lessee, Lease, Description [Line Items]
Operating lease renewal term (up to)	10 years		10 years
Operating lease, cost	$ 2,625	$ 1,700	$ 4,728	$ 3,300
Lessor, operating lease renewal term	5 years		5 years
Rental income	$ 270	$ 265	$ 554	$ 622
Minimum
Lessee, Lease, Description [Line Items]
Operating lease term	1 year		1 year
Maximum
Lessee, Lease, Description [Line Items]
Operating lease term	7 years		7 years