Cash and Cash equivalents and Short-term investments - Summary of Short-Term Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Restricted Cash and Cash Equivalents Items [Line Items]
Short-term investments	$ 728,898	$ 607,902
Term deposits
Restricted Cash and Cash Equivalents Items [Line Items]
Short-term investments	424,094	0
US treasury bills
Restricted Cash and Cash Equivalents Items [Line Items]
Short-term investments	199,981	607,902
Corporate debt securities
Restricted Cash and Cash Equivalents Items [Line Items]
Short-term investments	$ 104,823	$ 0