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CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS - Securities Classified as Cash, Cash Equivalents and Investments (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Cash and cash equivalents |  |
Fair Value | $ 42,715 | $ 64,932
Short-term investments |  |
Amortized Cost | 199,866 | 185,111
Gross Unrealized Gains | 133 | 112
Gross Unrealized Losses | (9) | (55)
Fair Value | 199,990 | 185,168
Total cash, cash equivalents and investments, Amortized Cost | 242,581 | 250,043
Total cash, cash equivalents and investments, Gross Unrealized Gains | 133 | 112
Total cash, cash equivalents and investments, Gross Unrealized Losses | (9) | (55)
Total cash, cash equivalents and investments | 242,705 | 250,100
U.S. treasury securities |  |
Short-term investments |  |
Amortized Cost | 98,808 | 79,720
Gross Unrealized Gains | 66 | 58
Gross Unrealized Losses | (2) | (5)
Fair Value | 98,872 | 79,773
U.S. government-sponsored agency bonds |  |
Short-term investments |  |
Amortized Cost | 27,100 | 45,960
Gross Unrealized Gains | 32 | 29
Gross Unrealized Losses | 0 | (27)
Fair Value | 27,132 | 45,962
Commercial paper |  |
Short-term investments |  |
Amortized Cost | 48,744 | 37,061
Gross Unrealized Gains | 12 | 19
Gross Unrealized Losses | (7) | (15)
Fair Value | 48,749 | 37,065
Corporate bonds |  |
Short-term investments |  |
Amortized Cost | 22,462 | 17,415
Gross Unrealized Gains | 23 | 4
Gross Unrealized Losses | 0 | (6)
Fair Value | 22,485 | 17,413
Asset-backed securities |  |
Short-term investments |  |
Amortized Cost | 2,752 | 2,983
Gross Unrealized Gains | 0 | 2
Gross Unrealized Losses | 0 | 0
Fair Value | 2,752 | 2,985
Yankee bonds |  |
Short-term investments |  |
Amortized Cost | 0 | 1,972
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | (2)
Fair Value | 0 | 1,970
Cash |  |
Cash and cash equivalents |  |
Fair Value | 9,155 | 16,282
Money market funds |  |
Cash and cash equivalents |  |
Fair Value | $ 33,560 | $ 48,650

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