Commitments and Contingencies - Summary of Components of Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Operating lease cost	$ 280	$ 279	$ 838	$ 839
Variable cost	87	83	261	259
Total lease costs	$ 367	$ 362	$ 1,099	$ 1,098