REVENUE AND ACCOUNTS RECEIVABLE - Schedule of Patient and Resident Service Revenue by Primary Payors (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Total patient and resident service revenue	$ 934,298	$ 707,826
Revenue Benchmark | Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Total patient and resident service revenue	$ 934,298	$ 707,826
% of Revenue	100.00%	100.00%
Medicare | Revenue Benchmark | Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Total patient and resident service revenue	$ 333,433	$ 340,410
% of Revenue	35.70%	48.10%
Medicaid | Revenue Benchmark | Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Total patient and resident service revenue	$ 362,453	$ 214,158
% of Revenue	38.80%	30.30%
Managed care | Revenue Benchmark | Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Total patient and resident service revenue	$ 184,483	$ 123,437
% of Revenue	19.70%	17.40%
Private and other | Revenue Benchmark | Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Total patient and resident service revenue	$ 53,929	$ 29,821
% of Revenue	5.80%	4.20%