REVENUE AND ACCOUNTS RECEIVABLE - Schedule of Disaggregated Revenue by Payor Type and Major Service (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Revenue, net	$ 131,929	$ 111,436
Contracted third-party payors
Disaggregation of Revenue [Line Items]
Revenue, net	$ 71,773	$ 61,907
Contracted third-party payors | Revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration of credit risk (as a percent)	54.00%	56.00%
Centers for Medicare and Medicaid
Disaggregation of Revenue [Line Items]
Revenue, net	$ 31,786	$ 26,491
Centers for Medicare and Medicaid | Revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration of credit risk (as a percent)	24.00%
Healthcare institutions
Disaggregation of Revenue [Line Items]
Revenue, net	$ 19,571	$ 15,781
Healthcare institutions | Revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration of credit risk (as a percent)	15.00%	14.00%
Non-contracted third-party payors
Disaggregation of Revenue [Line Items]
Revenue, net	$ 8,799	$ 7,257
Non-contracted third-party payors | Revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration of credit risk (as a percent)	7.00%	6.00%