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Organization and Summary of Accounting Policies - Narrative (Details)
$ in Millions
 3 Months Ended
Mar. 31, 2024
USD ($)
facility
state
Mar. 31, 2023
USD ($)
Product Information [Line Items]    
Number of surgical facilities owned 165  
Number of states in which entity operates | state 33  
Number of surgical facilities owned, majority interest 92  
Number of surgical facilities owned, consolidated 124  
Revenues | $ $ 717.4 $ 666.2
Facilities, Ambulatory Surgery Centers    
Product Information [Line Items]    
Number of surgical facilities owned 147  
Facilities, Surgical Hospitals    
Product Information [Line Items]    
Number of surgical facilities owned 18