Commitments and Contingencies - Schedule of Future Minimum Lease Payments (Details) $ in Thousands	Dec. 31, 2017 USD ($)
Future minimum lease payments
2018	$ 2,716	[1]
2019	2,102
2020	1,925
2021	1,894
2022 and thereafter	1,317
Total minimum lease payments	$ 9,954	[1]

[1] Operating leases include total future minimum rent payments under non-cancelable operating lease agreements.