Leases - Additional Information (Detail) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2020 USD ($)
Leases [Abstract]
Operating lease agreement expiration date		Feb. 28, 2023
Additional lease term to be extended	5 years	5 years
Weighted-average remaining lease term, operating lease (Year)	2 years 4 months 24 days	2 years 4 months 24 days
Weighted-average discount rate, Operating lease	6.50%	6.50%
Asset impairment	$ 100	$ 106