FAIR VALUE MEASUREMENTS - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	$ 79,323	$ 93,430
Short-term investments	412,350	484,345
Short-term U.S. Government bonds investments	2,585
Long-term U.S. Government bonds investments	301,193	259,861
Fair Value, Measurements, Recurring [Member] | Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	1,773	7,162
Short-term investments	2,373	149,788
Short-term U.S. Government bonds investments	409,977	334,557
Long-term Corporate bonds investments	10	2,451
Long-term U.S. Government bonds investments	287,137	245,364
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	1,773	7,162
Short-term investments	2,373	149,788
Short-term U.S. Government bonds investments	409,977	334,557
Long-term Corporate bonds investments	10	2,451
Long-term U.S. Government bonds investments	$ 287,137	$ 245,364