Statement Of Comprehensive Income [Abstract]
| Concept | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||||
| Profit (loss) | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                86 445
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                86 277
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                168,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                86 277
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                38 484
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                38 523
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                38 484
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                39,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
| Other comprehensive income [abstract] | ||||||||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] | ||||||||||||||||||
| Other comprehensive income, net of tax, gains (losses) from investments in equity instruments | — | 
                                                448,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                2 300
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | 
| Other comprehensive income, net of tax, gains (losses) on revaluation of property, plant and equipment, right-of-use assets and intangible assets | — | 
                                                1 528
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                23 392
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | 
| Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans | — | 
                                                238,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                6,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | 
| Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] | ||||||||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||||||||
| Gains (losses) on exchange differences on translation of foreign operations, net of tax | — | 
                                                1,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                86,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | 
| Financial assets measured at fair value through other comprehensive income [abstract] | ||||||||||||||||||
| Gains (losses) on financial assets measured at fair value through other comprehensive income, net of tax | — | 
                                                21 910
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                25 530
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | 
| Other comprehensive income | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                23 647
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                23 647
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                23 648
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                1,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                93,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                12,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                242,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                168,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                74,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                87,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
| Comprehensive income | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                110 092
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                86 277
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                168,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                109 924
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                23 648
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                1,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                38 484
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                93,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                12,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                38 765
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                38 652
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                113,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                87,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
| Comprehensive income attributable to [abstract] | ||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | 
                                                109 924
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                38 652
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | 
| Comprehensive income, attributable to non-controlling interests | — | 
                                                168,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                113,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — |