Stock-Based Compensation - Additional Information (Detail)				6 Months Ended
	Jun. 21, 2023 shares	May 01, 2023 shares	Dec. 18, 2020 shares	Jun. 30, 2023 Milestone shares	Mar. 31, 2020 shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of specific clinical development milestones achieved | Milestone				0
Time-based and Performance-based Vesting Requirements [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options granted		5,168,685
Time-based Vesting Requirements [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options granted		1,292,172
2014 Stock Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Increase in number of shares of common stock authorized for issuance					28,816
Common stock, number of shares initially reserved for issuance				0
2014 Employee Stock Purchase Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Increase in number of shares of common stock authorized for issuance					7,204
Common stock, number of shares initially reserved for issuance				24,077
2020 Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock, number of shares initially reserved for issuance			4,860,000	2,995,096
Percentage of issued and outstanding shares of common stock			15.00%
Increased number of shares	9,600,000
New aggregate share limit	14,460,000
Stock Options [Member] | Board of Directors [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected life assumption using simplified method, description				For stock options granted to the Company’s board of directors (the “Board”), the Company determined the expected life assumption using the simplified method as the starting point with an average period of twelve (12) months added to take into account for the extended range of time of 12 to 18 months vested stock options granted to Board members may be exercised upon termination.
Stock Options [Member] | Board of Directors [Member] | Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period of stock options granted				12 months
Stock Options [Member] | Board of Directors [Member] | Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period of stock options granted				18 months