Statement Of Cash Flows [Abstract]
| Concept | 2021-01-01 to 2021-12-31 | 2020-01-01 to 2020-12-31 | 
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Adjustments for interest expense | 
                                                4,001
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                4,485
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
| Adjustments for decrease (increase) in trade and other receivables | 
                                                21,482
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                24,707
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
| Adjustments for increase (decrease) in trade and other payables | 
                                                13,529
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                24,876
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
| Adjustments for gains (losses) on fair value adjustment, investment property | 
                                                1,245
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                6,637
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
| Cash flows from (used in) investing activities [abstract] | ||
| Purchase of property, plant and equipment, intangible assets other than goodwill, investment property and other non-current assets | 
                                                1,689
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                810,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
| Cash flows from (used in) decrease (increase) in short-term deposits and investments | 
                                                31,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                298,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             |