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) | 
                                                190,963,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                327,110,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                190,963,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                190,963,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                190,963,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                302,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                302,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                626,528,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                302,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                302,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||
| Valuation difference on available-for-sale securities | — | 
                                                -213,003,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -114,420,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Foreign currency translation adjustment | — | 
                                                98,910,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                28,893,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Share of other comprehensive income of entities accounted for using equity method | — | 
                                                31,499,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                22,200,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other comprehensive income | — | 
                                                -82,594,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -63,326,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income | — | 
                                                244,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                563,201,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | 
                                                244,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                563,201,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to non-controlling interests | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — |