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FAIR VALUE MEASUREMENTS - Available-for-Sale Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Cash equivalents and short-term investments
Amortized Cost	$ 425,168	$ 281,252
Unrealized Gains	309	103
Unrealized Losses	(88)
Fair Value	$ 425,389	$ 281,355
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Money market funds | Cash and cash equivalents
Cash equivalents and short-term investments
Amortized Cost	$ 161,094	$ 129,123
Fair Value	161,094	129,123
U.S. Government treasury securities | Short-term investments
Cash equivalents and short-term investments
Amortized Cost	264,074	152,129
Unrealized Gains	309	103
Unrealized Losses	(88)
Fair Value	$ 264,295	$ 152,232

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