Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting - Narrative (Details)

v3.23.3
Segment Reporting - Narrative (Details)
6 Months Ended
Jun. 30, 2023
clinic
segment
Mar. 31, 2023
clinic
Dec. 31, 2022
clinic
Jun. 30, 2022
clinic
Mar. 31, 2022
clinic
Dec. 31, 2021
clinic
Segment Reporting Information [Line Items]            
Number of operating segments | segment 2          
Number of non-operating segments | segment 1          
Number of stores 890     769    
Company-Owned or Managed Clinics            
Segment Reporting Information [Line Items]            
Number of stores 134 130 126 107 100 96
Franchised Clinics            
Segment Reporting Information [Line Items]            
Number of stores 756 740 712 662 636 610