FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Assets:
Total		$ 213,961
Quoted Market Prices for Identical Assets in Active Markets (Level 1)
Assets:
Total		189,000
Significant Other Observable Inputs (Level 2)
Assets:
Total		24,961
Significant Unobservable Inputs (Level 3)
Assets:
Total		0
Money market funds
Assets:
Cash equivalents	$ 293,434	189,000
Money market funds | Quoted Market Prices for Identical Assets in Active Markets (Level 1)
Assets:
Cash equivalents	293,434	189,000
Money market funds | Significant Other Observable Inputs (Level 2)
Assets:
Cash equivalents	0	0
Money market funds | Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$ 0	0
Treasury discount notes
Assets:
Cash equivalents		24,961
Treasury discount notes | Quoted Market Prices for Identical Assets in Active Markets (Level 1)
Assets:
Cash equivalents		0
Treasury discount notes | Significant Other Observable Inputs (Level 2)
Assets:
Cash equivalents		24,961
Treasury discount notes | Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents		$ 0