Leases - Schedule of Maturities of Lease Liabilities (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Operating Lease Liabilities Payments Due [Abstract]
2019 (for the remaining six months)	$ 2,320
2020	5,233
2021	4,953
2022	3,890
2023	3,776
Thereafter	1,354
Total undiscounted lease payments	21,526
Less: imputed interest	(4,386)
Total lease liabilities	$ 17,140