CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS - Summary of Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 190,739	$ 208,802
Cash
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	8,376	3,139
Money market funds
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	92,071	64,668
Corporate debt securities
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	2,580	0
Certificate of deposits, notes and term deposits
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 87,712	$ 140,995