Consolidated Statement Of Comprehensive Income
| Concept | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 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 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of comprehensive income | ||||||||||
| Statement of comprehensive income | ||||||||||
| Profit (loss) | 
                                                725,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                514,916,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                725,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                725,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                725,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                889,547,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                889,547,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                847,434,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                889,547,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                889,547,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||
| Valuation difference on available-for-sale securities | — | 
                                                8,511,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                4,206,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Foreign currency translation adjustment | — | 
                                                216,001,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                123,328,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other comprehensive income | — | 
                                                224,513,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                127,534,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income | — | 
                                                739,429,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                974,969,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | 
                                                739,429,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                974,969,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to non-controlling interests | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — |