Leases - Summary of Supplemental Balance Sheet Information Related to Leases (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Lease right-of-use assets, Non-current	$ 11,112	$ 12,064
Operating lease liabilities, Current	5,133	4,715
Operating lease liabilities, Non-current	$ 7,786	$ 8,850
Operating leases, Weighted Average Remaining Lease Term (in years)	2 years 9 months 18 days	3 years 1 month 6 days
Operating leases, Weighted Average Discount Rate	6.56%	6.55%