Profit Or Loss [Abstract]
| Concept | 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 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Profit or loss [abstract] | ||||||||||||||||||
| Profit (loss) [abstract] | ||||||||||||||||||
| Revenue | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Interest revenue calculated using effective interest method | — | — | — | — | — | 
                                                147,154,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                130,297,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
| Other income | — | — | — | — | — | 
                                                10,213,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                7,768,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
| Profit (loss) before tax | — | — | — | — | — | 
                                                42,124,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                29,590,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
| Tax expense (income) | — | — | — | — | — | 
                                                3,601,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                2,470,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
| Profit (loss) | 
                                                38,484,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                38,484,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                38,523,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                39,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                9,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                27,129,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                27,129,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                27,120,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
| Profit (loss), attributable to [abstract] | ||||||||||||||||||
| Profit (loss), attributable to owners of parent | — | — | — | — | — | 
                                                38,484,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                27,129,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
| Profit (loss), attributable to non-controlling interests | — | — | — | — | — | 
                                                39,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                9,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
| Earnings per share [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Earnings per share [abstract] | ||||||||||||||||||
| Earnings per share [line items] | ||||||||||||||||||
| Basic earnings per share [abstract] | ||||||||||||||||||
| Basic earnings (loss) per share | — | — | — | — | — | 
                                                0.30
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                0.21
                                                
                                             | 
| Diluted earnings per share [abstract] | ||||||||||||||||||
| Diluted earnings (loss) per share | — | — | — | — | — | 
                                                0.29
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                0.20
                                                
                                             |