Notes - Segment Information, Etc.
| Concept | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 
|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||
| Segment information | ||||||||
| Disclosure of sales, profit (loss), asset, liability, and other items for each reportable segment | ||||||||
| Sales | ||||||||
| Revenues from external customers | 
                                                3,177,361,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                453,258,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,970,867,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,601,487,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,842,961,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,006,883,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                391,792,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,772,129,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |