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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Concentration Risk [Line Items]      
Unbilled receivables $ 101,500 $ 80,100  
Rebate receivable 53,400 43,000  
Investments in equity-method investees 19,400 20,100  
Proportionate share of earnings in equity-method investees 5,125 6,030 $ 3,313
Capital distribution from equity method investments $ 5,875 $ 2,900 $ 3,250
Revenue from Contract with Customer Benchmark | Customer Concentration Risk | Largest Payer      
Concentration Risk [Line Items]      
Concentration risk 14.00% 16.00% 15.00%
Revenue from Contract with Customer Benchmark | Governmental Programs | Government Healthcare Programs      
Concentration Risk [Line Items]      
Concentration risk 12.00% 12.00% 12.00%
Accounts Receivable Benchmark | Governmental Programs | Government Healthcare Programs      
Concentration Risk [Line Items]      
Concentration risk 13.00% 11.00%  
Cost of Goods and Service, Product and Service Benchmark | Medical Supply Vendors | Four Vendors      
Concentration Risk [Line Items]      
Concentration risk 73.00% 74.00% 74.00%
Cost of Goods and Service, Product and Service Benchmark | Medical Supply Vendors | Three Vendors      
Concentration Risk [Line Items]      
Concentration risk     70.00%
Infusion pumps      
Concentration Risk [Line Items]      
Intangible asset useful life (in years) 7 years    
Computer Software      
Concentration Risk [Line Items]      
Intangible asset useful life (in years) 5 years    
Minimum | Referral sources      
Concentration Risk [Line Items]      
Intangible asset useful life (in years) 15 years    
Minimum | Trademarks and Trade Names      
Concentration Risk [Line Items]      
Intangible asset useful life (in years) 10 years    
Minimum | Other amortizable intangible assets      
Concentration Risk [Line Items]      
Intangible asset useful life (in years) 2 years    
Minimum | Equipment      
Concentration Risk [Line Items]      
Intangible asset useful life (in years) 3 years    
Maximum | Referral sources      
Concentration Risk [Line Items]      
Intangible asset useful life (in years) 20 years    
Maximum | Trademarks and Trade Names      
Concentration Risk [Line Items]      
Intangible asset useful life (in years) 15 years    
Maximum | Other amortizable intangible assets      
Concentration Risk [Line Items]      
Intangible asset useful life (in years) 9 years    
Maximum | Equipment      
Concentration Risk [Line Items]      
Intangible asset useful life (in years) 13 years