Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting - Narrative (Details)

v3.22.1
Segment Reporting - Narrative (Details)
3 Months Ended
Mar. 31, 2022
clinic
segment
Dec. 31, 2021
clinic
Mar. 31, 2021
clinic
Dec. 31, 2020
clinic
Segment Reporting Information [Line Items]        
Number of operating segments | segment 2      
Number of non-operating segments | segment 1      
Number of Stores 736   592  
Company-Owned or Managed Clinics        
Segment Reporting Information [Line Items]        
Number of Stores 100 96 65 64
Franchised Clinics        
Segment Reporting Information [Line Items]        
Number of Stores 636 610 527 515