FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Debt and Equity Securities, FV-NI [Line Items]
Realized Investment Gains (Losses)		$ 0	$ 0
Net unrealized gains/(losses) on investments			(103,500,000)	$ (154,200,000)
Level 2
Debt and Equity Securities, FV-NI [Line Items]
Changes in Fair Value	$ (6,100,000)		$ (5,600,000)