DISCONTINUED OPERATIONS - Schedule of Liability for Unpaid Claims and Claims Adjustment Expense (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Claims unpaid	$ 5,823		$ 4,918
Claims adjustment expense liability	61,748		40,691
Incurred but not reported (IBNR)	52,502		63,329
Liability for Claims and Claims Adjustment Expense, Total	458,465	$ 411,753	$ 407,161	$ 263,187
Discontinued Operations | Bright Healthcare – Commercial Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Claims unpaid	61,398	60,477
Provider incentive payable	1,717	3,446
Claims adjustment expense liability	14,293	45,932
Incurred but not reported (IBNR)	138,206	575,930
Liability for Claims and Claims Adjustment Expense, Total	$ 215,614	$ 685,785