Annual report [Section 13 and 15(d), not S-K Item 405]

Segment Reporting - Narrative (Details)

v3.25.4
Segment Reporting - Narrative (Details)
9 Months Ended 12 Months Ended
Sep. 30, 2024
segment
Dec. 31, 2025
clinic
segment
Dec. 31, 2024
clinic
Dec. 31, 2023
clinic
Segment Reporting Information [Line Items]        
Number of operating segments | segment 2      
Number of reportable segments | segment   1    
Number of clinics | clinic   960 967  
Franchised Clinics        
Segment Reporting Information [Line Items]        
Number of clinics | clinic   885 842 800