Registration of securities issued in business combination transactions

CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS (Details)

v3.21.2
CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]      
Cash equivalents $ 180,998 $ 482,886 $ 65,455
Amortized Cost 326,331 111,876 84,679
Unrealized Gains 11 2 75
Unrealized losses (24) (11) 0
Fair Value 326,318 111,867 84,754
Total cash equivalents and short-term investments, Amortized Cost 507,329 594,762 150,134
Total cash equivalents and short-term investments, Fair Value 507,316 594,753 150,209
U.S Treasury securities      
Debt Securities, Available-for-sale [Line Items]      
Amortized Cost   19,995  
Unrealized Gains   2  
Fair Value   19,997  
Commercial paper      
Debt Securities, Available-for-sale [Line Items]      
Amortized Cost 159,591 43,911 19,938
Unrealized losses     0
Fair Value 159,591 43,911 19,938
Corporate bonds      
Debt Securities, Available-for-sale [Line Items]      
Amortized Cost 104,758 47,970 47,955
Unrealized Gains 9   55
Unrealized losses (12) (11) 0
Fair Value 104,755 47,959 48,010
Government bonds      
Debt Securities, Available-for-sale [Line Items]      
Amortized Cost 36,736    
Unrealized Gains 1    
Unrealized losses (9)    
Fair Value 36,728    
Assetbacked securities      
Debt Securities, Available-for-sale [Line Items]      
Amortized Cost 25,246   16,786
Unrealized Gains 1   20
Unrealized losses (3)   0
Fair Value 25,244   16,806
Commercial paper      
Debt Securities, Available-for-sale [Line Items]      
Cash equivalents   75,374  
Repurchase agreements      
Debt Securities, Available-for-sale [Line Items]      
Cash equivalents     25,001
Money market funds      
Debt Securities, Available-for-sale [Line Items]      
Cash equivalents $ 180,998 $ 407,512 $ 40,454