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FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Debt and Equity Securities, FV-NI [Line Items]
Realized Investment Gains (Losses)	$ 0	$ 0
Net unrealized gains/(losses) on investments	(116,600,000)	$ (154,200,000)
Level 2
Debt and Equity Securities, FV-NI [Line Items]
Changes in Fair Value	500,000
Broncus Holding Corporation | Level 1
Debt and Equity Securities, FV-NI [Line Items]
Changes in fair value	$ (400,000)

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-SubTopic 220
-Section S99
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