v3.22.0.1
Investments and Fair Value Measurements - Summary Of Assets And Liabilities That Are Measured At Fair Value On A Recurring And Nonrecurring Basis (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds $ 507,317 $ 1,075,783
Certificates of deposit 51,892 74,097
Marketable securities 234,153  
Total 793,362 1,149,880
Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds 507,317 1,075,783
Certificates of deposit 0 0
Marketable securities 234,153  
Total 741,470 1,075,783
Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds 0 0
Certificates of deposit 51,892 74,097
Marketable securities 0  
Total 51,892 74,097
Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds 0 0
Certificates of deposit 0 0
Marketable securities 0  
Total $ 0 $ 0