VARIABLE INTEREST ENTITIES - Schedule of Aggregated VIE Assets and Liabilities and Performance (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Variable Interest Entity [Line Items]
Total Assets	$ 2,196,139		$ 2,196,139		$ 2,143,539
Total Liabilities	1,413,105		1,413,105		1,344,971
Operating expenses:
Selling, general and administrative expenses	111,765	$ 76,618	314,617	$ 158,786
Depreciation and amortization expense	25,343	16,955	64,215	30,746
Transaction and other costs	5,033	11,206	19,616	36,274
Total operating income (expenses)	696,473	532,523	2,132,774	1,210,043
Net income (loss)	(112,011)	(64,840)	(126,660)	(117,240)
Variable Interest Entity, Primary Beneficiary | Physicians Groups
Variable Interest Entity [Line Items]
Total Assets	129,242		129,242		80,445
Total Liabilities	95,160		95,160		$ 59,988
Total revenue	17,784	12,321	56,856	14,621
Operating expenses:
Third-party medical costs	10,372	8,582	35,795	8,582
Direct patient expense	6,483	2,413	19,913	5,203
Selling, general and administrative expenses	6,082	7,277	26,835	12,540
Depreciation and amortization expense	1,672	353	3,564	860
Transaction and other costs	460	0	1,322	0
Total operating income (expenses)	25,069	18,625	87,429	27,185
Net income (loss)	$ (7,285)	$ (6,304)	$ (30,573)	$ (12,564)