FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Cash and Cash Equivalents
Cost	$ 124,103	$ 144,173
Short-Term Investments
Cost	228,544	219,846
Gross Unrealized Gains	222	12
Gross Unrealized Losses	(1)	(7)
Fair Value	228,765	219,851
Money market funds
Cash and Cash Equivalents
Fair Value	71,158	117,328
U.S. government securities
Short-Term Investments
Fair Value	106,279	64,642
Corporate paper
Short-Term Investments
Fair Value	51,328	37,881
Level 1 | Money market funds
Cash and Cash Equivalents
Cost	71,158	117,328
Level 1 | U.S. government securities
Short-Term Investments
Cost	106,106	64,630
Gross Unrealized Gains	173	12
Gross Unrealized Losses	0	0
Level 2 | Corporate paper
Short-Term Investments
Cost	51,280	37,888
Gross Unrealized Gains	49	0
Gross Unrealized Losses	$ (1)	$ (7)