Leases - Schedule of Maturities of Lease Liabilities (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Operating leases
2019 (remaining)	$ 1,704
2020	3,054
2021	2,687
2022	2,526
2023	2,537
Thereafter	29,371
Total future minimum lease payments	41,879
Less: Imputed interest	(10,987)
Present value of lease liabilities	$ 30,892