Notes - Segment Information, Etc.
| Concept | 2022-10-21 to 2023-10-20 | 2022-10-21 to 2023-10-20 | 2022-10-21 to 2023-10-20 | 2022-10-21 to 2023-10-20 | 2022-10-21 to 2023-10-20 | 2021-10-21 to 2022-10-20 | 2021-10-21 to 2022-10-20 | 2021-10-21 to 2022-10-20 | 2021-10-21 to 2022-10-20 | 2021-10-21 to 2022-10-20 | 
|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                2,781,270,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,596,197,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,781,270,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                185,073,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,701,664,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                182,283,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,519,380,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,701,664,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||
| Depreciation | 
                                                109,571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                61,939,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                91,613,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,673,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,958,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                116,187,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,483,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                57,914,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                98,397,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                184,480,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                161,682,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                162,938,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,256,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,542,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                244,252,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                181,774,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                58,845,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                240,620,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,631,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |