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FINANCIAL INSTRUMENTS - Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Cash equivalents: |  |
Cash equivalents |  | $ 309,231
Short-term investments: |  |
Short-term investments | $ 8,723 | 11,818
Total | 111,466 |
Time deposits |  |
Short-term investments: |  |
Short-term investments | 8,723 | 11,818
Level 1 |  |
Cash equivalents: |  |
Cash equivalents |  | 260,582
Short-term investments: |  |
Total | 77,150 |
Level 1 | Time deposits |  |
Short-term investments: |  |
Short-term investments | 0 | 0
Level 2 |  |
Cash equivalents: |  |
Cash equivalents |  | 48,649
Short-term investments: |  |
Total | 34,316 |
Level 2 | Time deposits |  |
Short-term investments: |  |
Short-term investments | 8,723 | 11,818
Money market funds |  |
Cash equivalents: |  |
Cash equivalents | 77,150 | 260,582
Money market funds | Level 1 |  |
Cash equivalents: |  |
Cash equivalents | 77,150 | 260,582
Money market funds | Level 2 |  |
Cash equivalents: |  |
Cash equivalents | 0 | 0
Time deposits |  |
Cash equivalents: |  |
Cash equivalents | 25,593 | 36,831
Time deposits | Level 1 |  |
Cash equivalents: |  |
Cash equivalents | 0 | 0
Time deposits | Level 2 |  |
Cash equivalents: |  |
Cash equivalents | $ 25,593 | $ 36,831

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