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