DISCONTINUED OPERATIONS - Cash Flows From Operating and Investing Activities for Discontinued Operations (Details) - Discontinued Operations - Bright Healthcare – Commercial Segment - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash used in operating activities - discontinued operations	$ (1,798,234)	$ (2,334,534)	$ (313,924)
Cash used in investing activities - discontinued operations	$ (466,286)	$ (131,305)	$ (427,378)