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STOCK-BASED COMPENSATION - Vesting Conditions (Details) - shares
3 Months Ended 6 Months Ended
Dec. 31, 2021
Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted, Number of share of restricted stock (shares)   54,410
Restricted stock units, type 1    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted, Number of share of restricted stock (shares)   34,493
Target, Regional adjusted EBITDA, percentage   70.00%
Target, Group adjusted EBITDA, percentage   30.00%
Restricted stock units, type 1 | First Anniversary    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted, Number of share of restricted stock (shares) 53,075  
Vesting rights, percentage   33.00%
Restricted stock units, type 1 | Second Anniversary    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting rights, percentage   33.00%
Restricted stock units, type 1 | Third Anniversary    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting rights, percentage   34.00%
Restricted stock units, type 2    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted, Number of share of restricted stock (shares)   15,667
Restricted stock units, type 2 | First Anniversary    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting rights, percentage   66.60%
Restricted stock units, type 2 | Second Anniversary    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted, Number of share of restricted stock (shares) 73,596  
Vesting rights, percentage   16.70%
Restricted stock units, type 2 | Third Anniversary    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting rights, percentage   16.70%
Restricted stock units, time    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted, Number of share of restricted stock (shares)   4,250
Restricted stock units, type 1 and 2 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted, Number of share of restricted stock (shares)   50,160