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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2025
Concentration Risk [Line Items]
Unbilled receivables	$ 155,200		$ 155,200		$ 155,100
Rebate receivable	29,700		29,700		35,300
Investments in equity-method investees	30,200		30,200		$ 27,900
Equity in earnings of joint ventures	$ 1,500	$ 2,200	4,916	$ 5,300
Distributions received from the investees			$ 2,600	$ 2,100
Revenue from Contract with Customer Benchmark \| Governmental Healthcare Programs \| Government Healthcare Programs
Concentration Risk [Line Items]
Concentration risk (as a percent)	13.00%	12.00%	13.00%	12.00%
Accounts Receivable, Benchmark \| Governmental Healthcare Programs \| Government Healthcare Programs
Concentration Risk [Line Items]
Concentration risk (as a percent)			12.00%		13.00%
Cost of Goods and Service, Product and Service Benchmark \| Medical Supply Vendors \| Three Vendors
Concentration Risk [Line Items]
Concentration risk (as a percent)	55.00%		57.00%
Cost of Goods and Service, Product and Service Benchmark \| Medical Supply Vendors \| Four Vendors
Concentration Risk [Line Items]
Concentration risk (as a percent)		66.00%		67.00%
Largest Payer \| Revenue from Contract with Customer Benchmark \| Company's Largest Payer
Concentration Risk [Line Items]
Concentration risk (as a percent)	14.00%	14.00%	14.00%	14.00%
Joint Venture
Concentration Risk [Line Items]
Distributions received from the investees	$ 1,500	$ 500	$ 2,600	$ 2,100