Quarterly report pursuant to Section 13 or 15(d)

Fair Value (Details)

v3.21.2
Fair Value (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Fair Value    
Investments at fair value $ 114,742 $ 35,852
U.S. treasury bills    
Fair Value    
Investments at fair value 37,991 10,034
Government-sponsored enterprises securities    
Fair Value    
Investments at fair value 14,735 4,920
Corporate bonds and commercial paper    
Fair Value    
Investments at fair value 62,016 20,898
Fair value measurements recurring | Estimate Of Fair Value Fair Value Disclosure    
Fair Value    
Investments at fair value 140,536 55,339
Fair value measurements recurring | Money market funds | Estimate Of Fair Value Fair Value Disclosure    
Fair Value    
Investments at fair value 25,794 19,487
Fair value measurements recurring | U.S. treasury bills | Estimate Of Fair Value Fair Value Disclosure    
Fair Value    
Investments at fair value 37,991 10,034
Fair value measurements recurring | Government-sponsored enterprises securities | Estimate Of Fair Value Fair Value Disclosure    
Fair Value    
Investments at fair value 14,735 4,920
Fair value measurements recurring | Corporate bonds and commercial paper | Estimate Of Fair Value Fair Value Disclosure    
Fair Value    
Investments at fair value 62,016 20,898
Fair value measurements recurring | Fair value inputs Level 1    
Fair Value    
Investments at fair value 25,794 19,487
Fair value measurements recurring | Fair value inputs Level 1 | Money market funds    
Fair Value    
Investments at fair value 25,794 19,487
Fair value measurements recurring | Fair value inputs Level 2    
Fair Value    
Investments at fair value 114,742 35,852
Fair value measurements recurring | Fair value inputs Level 2 | U.S. treasury bills    
Fair Value    
Investments at fair value 37,991 10,034
Fair value measurements recurring | Fair value inputs Level 2 | Government-sponsored enterprises securities    
Fair Value    
Investments at fair value 14,735 4,920
Fair value measurements recurring | Fair value inputs Level 2 | Corporate bonds and commercial paper    
Fair Value    
Investments at fair value $ 62,016 $ 20,898