Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Schedule of Fair Value of Short-term Investments (Details)

v3.21.1
Fair Value Measurements - Schedule of Fair Value of Short-term Investments (Details)
$ in Thousands
Mar. 31, 2021
USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]  
Assets, Fair value $ 310,193
U.S. government securities [Member]  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]  
Assets, Fair value 100,209
Certificates of deposit [Member]  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]  
Assets, Fair value 65,059
Commercial paper [Member]  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]  
Assets, Fair value 144,925
Level 1 [Member]  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]  
Assets, Fair value 100,209
Level 1 [Member] | U.S. government securities [Member]  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]  
Assets, Fair value 100,209
Level 2 [Member]  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]  
Assets, Fair value 209,984
Level 2 [Member] | Certificates of deposit [Member]  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]  
Assets, Fair value 65,059
Level 2 [Member] | Commercial paper [Member]  
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]  
Assets, Fair value $ 144,925