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REVENUE
12 Months Ended
Dec. 31, 2021
Revenue from Contract with Customer [Abstract]  
Revenue REVENUE
The following table sets forth the net revenue earned by category of payer for the years ended December 31, 2021, 2020 and 2019 (in thousands):
Year Ended December 31,
202120202019
Commercial payers$2,971,900 $2,618,112 $2,001,105 
Government payers417,088 374,940 285,128 
Patients49,652 39,558 24,184 
Net revenue$3,438,640 $3,032,610 $2,310,417