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Stockholders' Equity (Deficit) - Additional Information (Details) - USD ($)			1 Months Ended	3 Months Ended	6 Months Ended
	Jun. 16, 2020	Apr. 01, 2019	Jun. 30, 2020	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Jan. 31, 2013
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock shares authorized	400,000,000		400,000,000	400,000,000	400,000,000	52,042,000
Preferred stock undesignated shares authorized	40,000,000		40,000,000	40,000,000	40,000,000	0
Common stock par value per share	$ 0.0001		$ 0.0001	$ 0.0001	$ 0.0001	$ 0.0001
Preferred stock par value per share	$ 0.0001		$ 0.0001	$ 0.0001	$ 0.0001	$ 0.0001
Reclassified accumulated deficit from predecessor deficit to additional paid in capital		$ 44,100,000
Time-based Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost			$ 10,500,000	$ 10,500,000	$ 10,500,000
Weighted-average period of unrecognized compensation cost					3 years 6 months
2013 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Units initially reserved for issuance							2,127,013
Increased to number of shares reserved under plan						4,771,615
Number of remaining shares available for issuance					0
2013 Equity Incentive Plan \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expiration period					10 years
2020 Incentive Award Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of remaining shares available for issuance			3,790,970
Shares of common stock initially reserved for issuance			3,900,000	3,900,000	3,900,000
Percentage of shares of common stock outstanding on final day of immediately preceding calendar year			5.00%	5.00%	5.00%
2020 Incentive Award Plan \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expiration period					10 years
Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock initially reserved for issuance			325,000	325,000	325,000
Participant maximum contribution as percentage of eligible compensation			15.00%	15.00%	15.00%
Percentage of purchase price of shares of lower of fair market value			85.00%
Shares issued under ESPP					0
Employee Stock Purchase Plan \| Accounts Payable and Accrued Liabilities
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Outstanding liability			$ 41,838	$ 41,838	$ 41,838
Series A Convertible Preferred Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Preferred unit converted into convertible preferred stock		1
Series B Convertible Preferred Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Preferred unit converted into convertible preferred stock		1
Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Convertible preferred stock converted into shares of common stock				17,921,000
Common unit converted into common stock		1
IPO
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Convertible preferred stock converted into shares of common stock	17,921,069
IPO \| Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock shares authorized	400,000,000
Convertible preferred stock converted into shares of common stock			17,921,069