FAIR VALUE MEASUREMENTS - Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value Assets
Marketable securities	$ 125,939	$ 152,167
Capped call transactions	4,086	2,582
Cash equivalents
Fair Value Assets
Cash equivalents	16,733	2,526
Venture investments
Fair Value Assets
Venture investments	13,382	13,069
Level 1
Fair Value Assets
Marketable securities	0	0
Capped call transactions	0	0
Level 1 | Cash equivalents
Fair Value Assets
Cash equivalents	16,733	2,526
Level 1 | Venture investments
Fair Value Assets
Venture investments	0	0
Level 2
Fair Value Assets
Marketable securities	125,939	152,167
Capped call transactions	4,086	2,582
Level 2 | Cash equivalents
Fair Value Assets
Cash equivalents	0	0
Level 2 | Venture investments
Fair Value Assets
Venture investments	0	0
Level 3
Fair Value Assets
Marketable securities	0	0
Capped call transactions	0	0
Level 3 | Cash equivalents
Fair Value Assets
Cash equivalents	0	0
Level 3 | Venture investments
Fair Value Assets
Venture investments	$ 13,382	$ 13,069