Common Stock - Additional Information (Details) - $ / shares	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Equity [Abstract]
Common stock, shares authorized	500,000,000	52,000,000
Common stock, par value per share	$ 0.001	$ 0.001
Common stock, shares issued	50,949,490	4,059,909
Common stock, shares outstanding	50,949,490	4,059,909
Common stock, dividends, per share, declared	$ 0	$ 0
Common stock, voting rights	Each share of common stock is entitled to one vote.
Equity incentive plan, shares issued	66,982