Summary of Significant Accounting Policies - Additional Information (Details)
12 Months Ended
Dec. 31, 2021
USD ($)
Segment
Dec. 31, 2020
USD ($)
Aug. 14, 2020
USD ($)
Research and development expense $ 19,436,000 $ 3,660,000  
Simple Agreements For Future Equity $ 0 11,740,000  
Capitalized internal-use software estimated useful life 3 years    
Advertising expense $ 2,000 14,000  
Dividend yield assumption 0.00%    
Provision for U.S. federal and state income taxes     $ 0
Number of operating segments | Segment 1    
ASU 2018-07      
Change in accounting principle, accounting standards update, adopted true    
Change in accounting principle, accounting standards update, adoption date Jan. 01, 2020    
Change in accounting principle, accounting standards update, immaterial effect true    
ASU 2018-13      
Change in accounting principle, accounting standards update, adopted true    
Change in accounting principle, accounting standards update, adoption date Jan. 01, 2020    
Change in accounting principle, accounting standards update, immaterial effect true    
ASU 2019-12      
Change in accounting principle, accounting standards update, adopted true    
Change in accounting principle, accounting standards update, adoption date Jan. 01, 2021    
Change in accounting principle, accounting standards update, immaterial effect true    
Minimum      
Property and equipment, estimated useful lives 3 years    
Maximum      
Property and equipment, estimated useful lives 5 years    
Revision of Prior Period Reclassification Adjustment      
Research and development expense   $ 682,000