Key Financial Data Of Group
| Concept | 2023-07-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | As at 2023-09-30 | 
|---|---|---|---|
| Key financial data of group | |||
| Business results of group | |||
| Net sales | — | 
                                                15,304,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Ordinary profit (loss) | — | 
                                                1,275,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit (loss) attributable to owners of parent | — | 
                                                856,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Comprehensive income | — | 
                                                867,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net assets | — | — | 
                                                11,732,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Total assets | — | — | 
                                                17,791,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Basic earnings (loss) per share | 
                                                15.92
                                                
                                             | 
                                                33.14
                                                
                                             | — | 
| Diluted earnings per share | — | 
                                                32.84
                                                
                                             | — | 
| Equity-to-asset ratio | — | — | 
                                                0.6511
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Net cash provided by (used in) operating activities | — | 
                                                1,296,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -91,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -1,108,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | — | — | 
                                                10,562,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |