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Basis of Presentation and Summary of Significant Accounting Policies - Long-Lived Assets (Details)
12 Months Ended
Dec. 31, 2020
Laboratory equipment  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 5 years
Furniture and office equipment | Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 3 years
Furniture and office equipment | Maximum  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 5 years