DISCONTINUED OPERATIONS - Schedule of Statement of Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating expenses:
Net loss from discontinued operations	$ (9,865)	$ (115,543)
Discontinued Operations | California Medicare Advantage Business
Revenue:
Premium revenue		454,083
Service revenue		2,413
Investment income		20,929
Total revenue from discontinued operations		477,425
Operating expenses:
Medical costs		474,739
Operating costs		105,866
Restructuring charges		7,956
Depreciation and amortization		4,407
Total operating expenses from discontinued operations		592,968
Operating loss from discontinued operations		(115,543)
Interest expense		0
Loss from discontinued operations before income taxes		(115,543)
Income tax expense (benefit)		0
Net loss from discontinued operations		(115,543)
Discontinued Operations | California Medicare Advantage Business | Bright HealthCare - Commercial
Revenue:
Premium revenue	(215)	766
Service revenue		30
Investment income	1,568	20,891
Total revenue from discontinued operations	1,353	21,687
Operating expenses:
Medical costs	(3,759)	46,014
Operating costs	6,585	47,478
Restructuring charges	(379)	7,956
Depreciation and amortization		0
Total operating expenses from discontinued operations	2,447	101,448
Operating loss from discontinued operations	(1,094)	(79,761)
Interest expense	8,765	0
Loss from discontinued operations before income taxes	(9,859)	(79,761)
Income tax expense (benefit)	6	0
Net loss from discontinued operations	$ (9,865)	(79,761)
Discontinued Operations | California Medicare Advantage Business | Bright HealthCare
Revenue:
Premium revenue		453,317
Service revenue		0
Investment income		38
Total revenue from discontinued operations		453,355
Operating expenses:
Medical costs		428,725
Operating costs		56,339
Restructuring charges		0
Depreciation and amortization		4,407
Total operating expenses from discontinued operations		489,471
Operating loss from discontinued operations		(36,116)
Interest expense		0
Loss from discontinued operations before income taxes		(36,116)
Income tax expense (benefit)		0
Net loss from discontinued operations		(36,116)
Discontinued Operations | California Medicare Advantage Business | Other
Revenue:
Premium revenue		0
Service revenue		2,383
Investment income		0
Total revenue from discontinued operations		2,383
Operating expenses:
Medical costs		0
Operating costs		2,049
Restructuring charges		0
Depreciation and amortization		0
Total operating expenses from discontinued operations		2,049
Operating loss from discontinued operations		334
Interest expense		0
Loss from discontinued operations before income taxes		334
Income tax expense (benefit)		0
Net loss from discontinued operations		$ 334