Key Financial Data Of Reporting Company
| Concept | As at 2023-12-31 | 2023-07-01 to 2023-12-31 | 
|---|---|---|
| Key financial data of reporting company | ||
| Business results of reporting company | ||
| Net sales | — | 
                                                8,319,092,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Ordinary profit (loss) | — | 
                                                111,660,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                8,623,713,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Total assets | 
                                                18,295,024,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Basic earnings (loss) per share | — | 
                                                0.63
                                                
                                             | 
| Diluted earnings per share | — |  | 
| Equity-to-asset ratio | 
                                                0.469
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | — | 
                                                -1,157,720,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net cash provided by (used in) investing activities | — | 
                                                -636,700,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net cash provided by (used in) financing activities | — | 
                                                -104,137,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Cash and cash equivalents | 
                                                1,249,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — |