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
Leases [Abstract]
Lease expiration period start			2019
Lease expiration period end			2024
Operating lease expense	$ 1,142	$ 900	$ 2,285	$ 1,600
Option to extend			true
Operating lease, not yet commenced, description			As of June 30, 2019, we do not have any leases that have not yet commenced that create significant rights and obligations.