Notes - Segment Information, Etc.
| Concept | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 
|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||
| Segment information | ||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||
| Sales | ||||||
| Revenues from external customers | 
                                                4,535,682,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,809,136,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,726,545,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,262,484,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,808,890,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,453,593,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                5,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,378,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,136,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,369,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,262,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |