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CASH, CASH EQUIVALENTS AND INVESTMENTS - Securities Classified as Cash, Cash Equivalents and Investments (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Cash and cash equivalents: |  |
Fair Value | $ 41,890 | $ 21,470
Short-term investments: |  |
Amortized Cost | 144,172 | 162,605
Gross Unrealized Gains | 4 | 280
Gross Unrealized Losses | (105) | (56)
Fair Value | 144,071 | 162,829
Total cash equivalents and investments, Amortized Cost | 186,062 | 184,075
Total cash equivalents and investments, Gross Unrealized Gains | 4 | 280
Total cash equivalents and investments, Gross Unrealized Losses | (105) | (56)
Cash and short-term investments | 185,961 | 184,299
U.S. government-sponsored agency bonds |  |
Short-term investments: |  |
Amortized Cost | 98,350 | 101,892
Gross Unrealized Gains | 0 | 235
Gross Unrealized Losses | (60) | (34)
Fair Value | 98,290 | 102,093
Commercial paper |  |
Short-term investments: |  |
Amortized Cost | 42,074 | 49,630
Gross Unrealized Gains | 4 | 41
Gross Unrealized Losses | (44) | (17)
Fair Value | 42,034 | 49,654
Asset-backed securities |  |
Short-term investments: |  |
Amortized Cost | 3,748 | 8,628
Gross Unrealized Gains | 0 | 2
Gross Unrealized Losses | (1) | (5)
Fair Value | 3,747 | 8,625
U.S. treasury securities |  |
Short-term investments: |  |
Amortized Cost |  | 2,455
Gross Unrealized Gains |  | 2
Gross Unrealized Losses |  | 0
Fair Value |  | 2,457
Cash |  |
Cash and cash equivalents: |  |
Fair Value | 5,834 | 2,829
Money market funds |  |
Cash and cash equivalents: |  |
Fair Value | $ 36,056 | $ 18,641

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