FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Cash and Cash Equivalents
Cost	$ 155,328	$ 144,173
Short-Term Investments
Cost	222,726	219,846
Gross Unrealized Gains	1	12
Gross Unrealized Losses	(27)	(7)
Fair Value	222,700	219,851
Money market funds
Cash and Cash Equivalents
Fair Value	118,855	117,328
U.S. government securities
Short-Term Investments
Fair Value	68,047	64,642
Corporate paper
Short-Term Investments
Fair Value	35,798	37,881
Level 1 | Money market funds
Cash and Cash Equivalents
Cost	118,855	117,328
Level 1 | U.S. government securities
Short-Term Investments
Cost	68,053	64,630
Gross Unrealized Gains	1	12
Gross Unrealized Losses	(7)	0
Level 2 | Corporate paper
Short-Term Investments
Cost	35,818	37,888
Gross Unrealized Gains	0	0
Gross Unrealized Losses	$ (20)	$ (7)