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FAIR VALUE MEASUREMENTS - RECURRING BASIS (Details) - Recurring basis - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value on a Recurring Basis
Total	$ 423,934	$ 324,904
Money market funds
Fair Value on a Recurring Basis
Total	148,092	17,658
Certificate of deposit
Fair Value on a Recurring Basis
Total	272	272
U.S. Treasury securities
Fair Value on a Recurring Basis
Total	29,950	29,742
Government-sponsored enterprise securities
Fair Value on a Recurring Basis
Total	63,589	99,872
Commercial paper
Fair Value on a Recurring Basis
Total	119,825	102,268
Corporate notes
Fair Value on a Recurring Basis
Total	62,206	75,092
Level 1
Fair Value on a Recurring Basis
Total	148,364	17,930
Level 1 | Money market funds
Fair Value on a Recurring Basis
Total	148,092	17,658
Level 1 | Certificate of deposit
Fair Value on a Recurring Basis
Total	272	272
Level 2
Fair Value on a Recurring Basis
Total	275,570	306,974
Level 2 | U.S. Treasury securities
Fair Value on a Recurring Basis
Total	29,950	29,742
Level 2 | Government-sponsored enterprise securities
Fair Value on a Recurring Basis
Total	63,589	99,872
Level 2 | Commercial paper
Fair Value on a Recurring Basis
Total	119,825	102,268
Level 2 | Corporate notes
Fair Value on a Recurring Basis
Total	$ 62,206	$ 75,092

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