Consolidated Statement Of Comprehensive Income
| Concept | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of comprehensive income | ||||||||||
| Statement of comprehensive income | ||||||||||
| Profit (loss) | 
                                                1,254,784,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,254,784,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,254,784,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,239,458,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,254,784,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                675,899,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                226,910,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                675,899,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                675,899,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                675,899,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||
| Valuation difference on available-for-sale securities | — | — | — | 
                                                -172,068,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                184,827,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Foreign currency translation adjustment | — | — | — | 
                                                287,834,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                188,126,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Remeasurements of defined benefit plans, net of tax | — | — | — | 
                                                40,169,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                279,717,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other comprehensive income | — | — | — | 
                                                126,466,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                652,672,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Comprehensive income | — | — | — | 
                                                1,365,924,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                879,583,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | — | — | 
                                                1,283,738,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                807,676,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Comprehensive income attributable to non-controlling interests | — | — | — | 
                                                82,186,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                71,906,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — |