XML 37 R26.htm IDEA: XBRL DOCUMENT v3.21.2
Fair Value of Financial Instruments - Financial Assets Measured at Fair Value on Recurring Basis (Details) - Fair Value on Recurring Basis - Money Market Funds - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Financial assets    
Cash equivalents $ 398,145 $ 424,115
Level 1    
Financial assets    
Cash equivalents $ 398,145 $ 424,115