for the period from January 1 to December 31, 2022
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            Retained earnings  | 
            
  | 
            Accumulated other comprehensive income  | 
            
  | 
            Group equity  | 
        ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
  | 
            
  | 
            Subscribed capital  | 
            
  | 
            Own shares  | 
            
  | 
            Other capital reserves  | 
            
  | 
            Legal reserves  | 
            
  | 
            Other reserves  | 
            
  | 
            Currency translation  | 
            
  | 
            Gains/  | 
            
  | 
            Total before non-controlling interests  | 
            
  | 
            Non-controlling interests  | 
            
  | 
            Group equity  | 
        
Notes  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
        ||
January 1, 2021  | 
            
  | 
            70,400  | 
            
  | 
            (42,363)  | 
            
  | 
            399  | 
            
  | 
            6,641  | 
            
  | 
            699,750  | 
            
  | 
            20,957  | 
            
  | 
            (1,973)  | 
            
  | 
            753,811  | 
            
  | 
            6,126  | 
            
  | 
            759,937  | 
        
Net income  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            137,339  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            137,339  | 
            
  | 
            6,786  | 
            
  | 
            144,125  | 
        
Other income  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            8,635  | 
            
  | 
            29,766  | 
            
  | 
            (1,402)  | 
            
  | 
            36,999  | 
            
  | 
            1,394  | 
            
  | 
            38,393  | 
        
Comprehensive income  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            145,974  | 
            
  | 
            29,766  | 
            
  | 
            (1,402)  | 
            
  | 
            174,337  | 
            
  | 
            8,180  | 
            
  | 
            182,518  | 
        
Dividend payment  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            (2,761)  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            (2,761)  | 
            
  | 
            
  | 
            
  | 
            (2,761)  | 
        
December 31, 2021  | 
            
  | 
            70,400  | 
            
  | 
            (42,363)  | 
            
  | 
            399  | 
            
  | 
            6,641  | 
            
  | 
            842,963  | 
            
  | 
            50,723  | 
            
  | 
            (3,375)  | 
            
  | 
            925,387  | 
            
  | 
            14,306  | 
            
  | 
            939,693  | 
        
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
        
January 1, 2022  | 
            
  | 
            70,400  | 
            
  | 
            (42,363)  | 
            
  | 
            399  | 
            
  | 
            6,641  | 
            
  | 
            842,963  | 
            
  | 
            50,723  | 
            
  | 
            (3,375)  | 
            
  | 
            925,387  | 
            
  | 
            14,306  | 
            
  | 
            939,693  | 
        
Initial application of IAS 29  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            (216)  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            (216)  | 
            
  | 
            
  | 
            
  | 
            (216)  | 
        
January 1, 2022  | 
            
  | 
            70,400  | 
            
  | 
            (42,363)  | 
            
  | 
            399  | 
            
  | 
            6,641  | 
            
  | 
            842,747  | 
            
  | 
            50,723  | 
            
  | 
            (3,375)  | 
            
  | 
            925,172  | 
            
  | 
            14,306  | 
            
  | 
            939,478  | 
        
Net income  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            209,495  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            209,495  | 
            
  | 
            12,362  | 
            
  | 
            221,858  | 
        
Other income  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            11,571  | 
            
  | 
            13,804  | 
            
  | 
            3,668  | 
            
  | 
            29,043  | 
            
  | 
            619  | 
            
  | 
            29,662  | 
        
Comprehensive income  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            221,066  | 
            
  | 
            13,804  | 
            
  | 
            3,668  | 
            
  | 
            238,538  | 
            
  | 
            12,981  | 
            
  | 
            251,520  | 
        
Dividend payment  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            (48,311)  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            (48,311)  | 
            
  | 
            (8,436)  | 
            
  | 
            (56,747)  | 
        
Share based payments  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            1,182  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            
  | 
            1,182  | 
            
  | 
            
  | 
            
  | 
            1,182  | 
        
December 31, 2022  | 
            
  | 
            70,400  | 
            
  | 
            (42,363)  | 
            
  | 
            1,582  | 
            
  | 
            6,641  | 
            
  | 
            1,015,501  | 
            
  | 
            64,527  | 
            
  | 
            293  | 
            
  | 
            1,116,581  | 
            
  | 
            18,852  | 
            
  | 
            1,135,433  |