CREDIT FACILITIES AND NOTES PAYABLE - Schedule of Term Loan Debt Obligations (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total debt obligations	$ 860,345	$ 851,474
Less: current portion	(16,043)	(12,400)
Long term portion debt obligations	844,302	839,074
Equipment notes payable at 6.0%, due 2028, collateralized by medical equipment
Debt Instrument [Line Items]
Total debt obligations	$ 17,901	0
Interest rate, stated percentage	6.00%
Term Loans | First Lien Term Loan
Debt Instrument [Line Items]
Discount on First Lien Term Loans	$ (9,563)	(11,127)
Total debt obligations	708,688	714,125
Term Loans | NJIN Term Loan Agreement
Debt Instrument [Line Items]
Discount on First Lien Term Loans	(1,056)	(1,524)
Total debt obligations	$ 144,375	$ 150,000