VARIABLE INTEREST ENTITIES - Schedule of Aggregated VIE Assets and Liabilities and Performance (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Variable Interest Entity [Line Items]
Total Assets	$ 1,707,322		$ 1,707,322		$ 1,928,927
Total Liabilities	1,471,549		1,471,549		1,434,652
Operating expenses:
Total operating expenses	1,012,380	$ 720,422	1,918,818	$ 1,436,299
Net income (loss)	(270,745)	(14,564)	(331,330)	(14,649)
Selling, general and administrative expenses	99,418	106,179	195,890	202,849
Depreciation and amortization expense	27,251	19,836	54,473	38,872
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Total Assets	125,800		125,800		99,200
Total Liabilities	85,000		85,000		156,800
Operating expenses:
Selling, general and administrative expenses	13,200	9,100	26,300	20,800
Depreciation and amortization expense	2,000	1,100	3,900	1,900
Variable Interest Entity, Primary Beneficiary | Physicians Groups
Variable Interest Entity [Line Items]
Total Assets	21,832		21,832		16,247
Total Liabilities	32,370		32,370		$ 19,445
Total revenue	21,369	24,754	49,030	39,072
Operating expenses:
Third-party medical costs	18,748	18,792	37,000	25,423
Direct patient expense	7,381	7,666	14,768	13,430
Total operating expenses	26,129	26,458	51,768	38,853
Net income (loss)	$ (4,760)	$ (1,704)	$ (2,738)	$ 219