Annual report pursuant to Section 13 and 15(d)

Segment Reporting - Narrative (Details)

v3.24.0.1
Segment Reporting - Narrative (Details)
12 Months Ended
Dec. 31, 2023
segment
clinic
Dec. 31, 2022
clinic
Dec. 31, 2021
clinic
Segment Reporting Information [Line Items]      
Number of operating segments | segment 2    
Number of clinics 935 838  
Company-Owned or Managed Clinics      
Segment Reporting Information [Line Items]      
Number of clinics 135 126 96
Franchised Clinics      
Segment Reporting Information [Line Items]      
Number of clinics 800 712 610