INVESTMENTS AND FAIR VALUE MEASUREMENTS - NARRATIVE (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, total aggregated loss	$ 0.3	$ 0.2
Debt securities, available-for-sale, credit-related impairment loss	0.0	0.0
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Fair value of available-for-sale debt securities in unrealized loss position, Total	8.8	7.1
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Fair value of available-for-sale debt securities in unrealized loss position, Total	$ 0.0	$ 2.7