FAIR VALUE MEASUREMENTS - Available-for-Sale Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Cash equivalents and short-term investments
Amortized Cost	$ 321,907	$ 425,168
Unrealized Gains	141	309
Unrealized Losses	(63)	(88)
Fair Value	$ 321,985	$ 425,389
Fair value hierarchy - Level 1	us-gaap:FairValueInputsLevel1Member	us-gaap:FairValueInputsLevel1Member
Money market funds | Cash and cash equivalents
Cash equivalents and short-term investments
Amortized Cost	$ 164,117	$ 161,094
Fair Value	164,117	161,094
U.S. Government treasury securities | Short-term investments
Cash equivalents and short-term investments
Amortized Cost	157,790	264,074
Unrealized Gains	141	309
Unrealized Losses	(63)	(88)
Fair Value	$ 157,868	$ 264,295