Notes - Segment Information, Etc.
| Concept | 2023-06-01 to 2024-05-31 | 2023-06-01 to 2024-05-31 | 2023-06-01 to 2024-05-31 | 2023-06-01 to 2024-05-31 | 2023-06-01 to 2024-05-31 | 2023-06-01 to 2024-05-31 | 2022-06-01 to 2023-05-31 | 2022-06-01 to 2023-05-31 | 2022-06-01 to 2023-05-31 | 2022-06-01 to 2023-05-31 | 2022-06-01 to 2023-05-31 | 2022-06-01 to 2023-05-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                6,837,714,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,330,876,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,714,904,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,714,904,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,546,313,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,844,572,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,844,572,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,058,321,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,110,782,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,675,468,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                9,463,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                232,471,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                242,929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -242,929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                993,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -185,713,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                185,713,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                185,149,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                564,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||
| Depreciation | 
                                                32,138,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,206,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,273,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,818,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                47,091,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,928,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                765,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,899,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,664,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,652,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,139,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                85,101,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                418,250,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,012,278,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,065,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,017,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,508,926,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,617,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,403,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,405,572,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,466,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,111,421,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                288,067,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |