Concentration Risk, Threshold, Percentage

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right to consideration is unconditional.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Concentration Risk [Line Items]
Rebate receivable	$ 46,400		$ 46,400		$ 43,000
Investments in equity-method investees	21,700		21,700		$ 20,100
Proportionate share of earnings in equity-method investees	1,500	$ 1,700	4,065	$ 4,567
Prepaid expenses and other current assets
Concentration Risk [Line Items]
Assets held for sale	9,500		9,500
Accrued expenses and other current liabilities
Concentration Risk [Line Items]
Liabilities held for sale	$ 2,000		$ 2,000
Revenue from Contract with Customer Benchmark \| Company's Largest Payer
Concentration Risk [Line Items]
Concentration risk	14.00%	16.00%	15.00%	16.00%
Revenue from Contract with Customer Benchmark \| Governmental Healthcare Programs
Concentration Risk [Line Items]
Concentration risk	12.00%	12.00%	12.00%	12.00%
Accounts Receivable \| Governmental Healthcare Programs
Concentration Risk [Line Items]
Concentration risk			11.00%		11.00%
Cost of Goods and Service, Product and Service Benchmark \| Medical Supply Vendors
Concentration Risk [Line Items]
Concentration risk	74.00%	65.00%	73.00%	65.00%