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Disclosure - CARES Act Paycheck Protection Program Loan - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100360 - Disclosure - Preferred and Common Stock - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100370 - Disclosure - Common Stock Warrants - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100380 - Disclosure - Share-Based Compensation - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100390 - Disclosure - Share-Based Compensation - Summary of Share-based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 100400 - Disclosure - Share-Based Compensation - Weighted Average Assumptions Used in Black-Scholes Option Pricing Model to Calculate Fair Value of Underlying Common Stock (Details) link:presentationLink link:calculationLink link:definitionLink 100410 - 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Disclosure - Commitment and Contingencies - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100490 - Disclosure - Commitment and Contingencies - Operating Leases Included on the Balance Sheet (Details) link:presentationLink link:calculationLink link:definitionLink 100500 - Disclosure - Commitment and Contingencies - Future Minimum Commitments Due Under Non-Cancelable Operating Leases (Details) link:presentationLink link:calculationLink link:definitionLink 100510 - Disclosure - License and Other Agreements - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100520 - Disclosure - Fair Value Measurements - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100530 - Disclosure - Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 100540 - Disclosure - Net Income (Loss) Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) link:presentationLink link:calculationLink link:definitionLink 100550 - Disclosure - Net Loss Per Share - Potential Common Stock Equivalents Excluded from Computation of Diluted Net Loss per Share (Details) link:presentationLink link:calculationLink link:definitionLink 100560 - Disclosure - Related Party Transactions (Detail) link:presentationLink link:calculationLink link:definitionLink