REVENUE AND ACCOUNTS RECEIVABLE - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Revenue	$ 1,432,497	$ 1,221,414	$ 2,814,800	$ 2,388,454
Total Medicaid and Medicare
Disaggregation of Revenue [Line Items]
Revenue	987,133	852,172	1,941,650	1,663,314
Medicaid
Disaggregation of Revenue [Line Items]
Revenue	566,819	485,848	1,110,269	939,688
Medicare
Disaggregation of Revenue [Line Items]
Revenue	339,650	291,117	675,479	578,868
Medicaid-skilled
Disaggregation of Revenue [Line Items]
Revenue	80,664	75,207	155,902	144,758
Managed care
Disaggregation of Revenue [Line Items]
Revenue	265,348	229,495	526,199	456,712
Private and other
Disaggregation of Revenue [Line Items]
Revenue	$ 180,016	$ 139,747	$ 346,951	$ 268,428
Revenue \| Customer Concentration Risk
Disaggregation of Revenue [Line Items]
% of Revenue	100.00%	100.00%	100.00%	100.00%
Revenue \| Customer Concentration Risk \| Total Medicaid and Medicare
Disaggregation of Revenue [Line Items]
% of Revenue	68.90%	69.80%	69.00%	69.60%
Revenue \| Customer Concentration Risk \| Medicaid
Disaggregation of Revenue [Line Items]
% of Revenue	39.60%	39.80%	39.40%	39.30%
Revenue \| Customer Concentration Risk \| Medicare
Disaggregation of Revenue [Line Items]
% of Revenue	23.70%	23.80%	24.00%	24.20%
Revenue \| Customer Concentration Risk \| Medicaid-skilled
Disaggregation of Revenue [Line Items]
% of Revenue	5.60%	6.20%	5.60%	6.10%
Revenue \| Customer Concentration Risk \| Managed care
Disaggregation of Revenue [Line Items]
% of Revenue	18.50%	18.80%	18.70%	19.10%
Revenue \| Customer Concentration Risk \| Private and other
Disaggregation of Revenue [Line Items]
% of Revenue	12.60%	11.40%	12.30%	11.30%