Semi-Annual Consolidated Statement Of Comprehensive Income
| 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 | 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 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of comprehensive income | ||||||||||
| Statement of comprehensive income | ||||||||||
| Profit (loss) | 
                                                1,191,958,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                792,280,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,191,958,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,191,958,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,191,958,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                754,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                566,336,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                754,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                754,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                754,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||
| Foreign currency translation adjustment | — | 
                                                -178,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -1,027,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Share of other comprehensive income of entities accounted for using equity method | — | 
                                                -6,975,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other comprehensive income | — | 
                                                -7,154,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -1,027,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Comprehensive income | — | 
                                                785,126,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                565,308,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | 
                                                773,529,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                555,694,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Comprehensive income attributable to non-controlling interests | — | 
                                                11,597,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                9,614,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — |