Semi-Annual 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 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of comprehensive income | ||||||||||
| Statement of comprehensive income | ||||||||||
| Profit (loss) | 
                                                -1,027,180,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -438,872,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,027,180,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,027,180,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,027,180,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                973,893,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                973,893,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                922,543,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                973,893,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                973,893,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||
| Valuation difference on available-for-sale securities | — | 
                                                -170,060,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -332,369,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Foreign currency translation adjustment | — | 
                                                121,773,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                97,507,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Remeasurements of defined benefit plans, net of tax | — | 
                                                183,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                705,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Share of other comprehensive income of entities accounted for using equity method | — | 
                                                -27,893,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                23,643,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other comprehensive income | — | 
                                                -75,997,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -210,513,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income | — | 
                                                -514,870,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                712,030,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | 
                                                -564,112,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                732,703,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to non-controlling interests | — | 
                                                49,241,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -20,672,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — |