DISCONTINUED OPERATIONS - Schedule of Assets and Liabilities of Discontinued Operations (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Current assets of discontinued operations	$ 1,368,694	$ 3,187,464
Other assets:
Other assets of discontinued operations	0	529,117
Current liabilities:
Current liabilities of discontinued operations	974,502	3,157,236
Discontinued Operations
Current assets:
Cash and cash equivalents	609,987	1,715,284
Short-term investments	10,624	1,133,772
Accounts receivable, net of allowance	79,462	65,111
Prepaids and other current assets	150,999	273,297
Property, equipment and capitalized software, net	19,948
Goodwill	358,693
Intangible assets, net	138,981
Current assets of discontinued operations	1,368,694	3,187,464
Other assets:
Property, equipment and capitalized software, net		21,298
Goodwill		358,693
Intangible assets, net		144,131
Other non-current assets		4,995
Other assets of discontinued operations		529,117
Total assets of discontinued operations	1,368,694	3,716,581
Current liabilities:
Medical costs payable	317,733	981,517
Accounts payable	33,686	171,565
Risk adjustment payable	402,354	1,943,890
Unearned revenue	137,733	242
Other current liabilities	82,996	60,022
Current liabilities of discontinued operations	974,502	3,157,236
Total liabilities of discontinued operations	974,502	3,157,236
Discontinued Operations | Bright HealthCare - Commercial
Current assets:
Cash and cash equivalents	279,198	1,469,577
Short-term investments	9,948	1,129,800
Accounts receivable, net of allowance	1,792	4,167
Prepaids and other current assets	18,455	187,818
Property, equipment and capitalized software, net	0
Goodwill	0
Intangible assets, net	0
Current assets of discontinued operations	309,393	2,791,362
Other assets:
Property, equipment and capitalized software, net		0
Goodwill		0
Intangible assets, net		0
Other non-current assets		0
Other assets of discontinued operations		0
Total assets of discontinued operations	309,393	2,791,362
Current liabilities:
Medical costs payable	49,462	691,221
Accounts payable	26,879	160,707
Risk adjustment payable	402,354	1,942,643
Unearned revenue	0	0
Other current liabilities	18,981	19,373
Current liabilities of discontinued operations	497,676	2,813,944
Total liabilities of discontinued operations	497,676	2,813,944
Discontinued Operations | Bright HealthCare
Current assets:
Cash and cash equivalents	330,789	244,616
Short-term investments	676	3,972
Accounts receivable, net of allowance	77,670	59,308
Prepaids and other current assets	132,544	85,479
Property, equipment and capitalized software, net	19,948
Goodwill	358,693
Intangible assets, net	138,981
Current assets of discontinued operations	1,059,301	393,375
Other assets:
Property, equipment and capitalized software, net		21,298
Goodwill		358,693
Intangible assets, net		144,131
Other non-current assets		4,995
Other assets of discontinued operations		529,117
Total assets of discontinued operations	1,059,301	922,492
Current liabilities:
Medical costs payable	268,271	290,296
Accounts payable	6,807	10,858
Risk adjustment payable	0	1,247
Unearned revenue	137,733	0
Other current liabilities	64,015	40,002
Current liabilities of discontinued operations	476,826	342,403
Total liabilities of discontinued operations	$ 476,826	342,403
Discontinued Operations | Other
Current assets:
Cash and cash equivalents		1,091
Short-term investments		0
Accounts receivable, net of allowance		1,636
Prepaids and other current assets		0
Current assets of discontinued operations		2,727
Other assets:
Property, equipment and capitalized software, net		0
Goodwill		0
Intangible assets, net		0
Other non-current assets		0
Other assets of discontinued operations		0
Total assets of discontinued operations		2,727
Current liabilities:
Medical costs payable		0
Accounts payable		0
Risk adjustment payable		0
Unearned revenue		242
Other current liabilities		647
Current liabilities of discontinued operations		889
Total liabilities of discontinued operations		$ 889