Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation - Summary of Store activity (Details)

v3.21.2
Basis of Presentation - Summary of Store activity (Details) - Store
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 30, 2021
Dec. 31, 2020
Schedule Of Store Activity [Line Items]      
Stores, end of the period 116 116  
Franchised Stores [Member]      
Schedule Of Store Activity [Line Items]      
Stores, beginning of the period 97 102 117
Stores opened during the period   3 9
Stores transferred/sold to the Company     (2)
Stores closed during the period (4) (12) (22)
Stores, end of the period 93 93 102
Corporate Owned Stores [Member]      
Schedule Of Store Activity [Line Items]      
Stores, beginning of the period 22 17 13
Stores opened during the period 2 7 2
Stores transferred/sold to the Company     2
Stores closed during the period (1) (1)  
Stores, end of the period 23 23 17