Common Stock - Additional Information (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020	Jul. 31, 2021
Class Of Stock [Line Items]
Common stock, shares authorized	500,000,000	500,000,000
Common stock, par value per share	$ 0.001	$ 0.001
Common stock, shares issued	52,587,855	51,071,593
Common stock, shares outstanding	52,587,855	51,071,593
Common stock, dividends, per share, declared	$ 0	$ 0
Common stock, voting rights	Each share of common stock is entitled to one vote.
Proceeds from issuance of stock, net of commission and offering expenses	$ 7,108,000
Equity incentive plan, shares issued	62,382
ATM Sales Agreement | Jefferies LLC
Class Of Stock [Line Items]
Maximum commission percentage of gross proceeds from common stock sold			3.00%
Common stock shares sold	498,502
Average price	$ 25.15
Aggregate gross proceeds from issuance of common stock	$ 12,500,000
Proceeds from issuance of stock, net of commission and offering expenses	12,200,000
ATM Sales Agreement | Jefferies LLC | Prepaid Expenses and Other Current Assets
Class Of Stock [Line Items]
Receivables	$ 5,000,000.0
ATM Sales Agreement | Maximum | Jefferies LLC
Class Of Stock [Line Items]
Aggregate offering price			$ 150,000,000.0