REVENUE - Net Revenue Earned by Category of Payer (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Net revenue	$ 1,278,546	$ 1,093,014	$ 3,651,784	$ 3,177,934
Commercial payers
Disaggregation of Revenue [Line Items]
Net revenue	1,109,971	957,601	3,160,490	2,765,513
Government payers
Disaggregation of Revenue [Line Items]
Net revenue	147,005	124,122	424,033	370,648
Patients
Disaggregation of Revenue [Line Items]
Net revenue	$ 21,570	$ 11,291	$ 67,261	$ 41,773