FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Cash and Cash Equivalents and Short-term Investments (Details) - USD ($) $ in Thousands |
Sep. 30, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Fair value disclosure | ||
| Cash and cash equivalents | $ 150,461 | $ 262,226 |
| Short-term investments | 40,639 | 67,842 |
| Concentrations of Credit Risk of Financial Instruments | ||
| Cash deposits and short-term investments which were not FDIC insured | 54,300 | 76,300 |
| Cash deposits | ||
| Fair value disclosure | ||
| Cash and cash equivalents | 118,367 | 168,472 |
| Money market funds | ||
| Fair value disclosure | ||
| Cash and cash equivalents | 32,094 | 93,754 |
| Certificates of deposit | ||
| Fair value disclosure | ||
| Short-term investments | $ 40,639 | $ 67,842 |