Disclosure Of Sustainability-Related Financial Information
| Concept | 
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                        
|---|---|---|---|---|---|---|---|---|---|
| Disclosure of Sustainability-related Financial Information | |||||||||
| Description of metrics related to policy on development of human resources and internal environment, and targets and performance using such metrics | |||||||||
| Metrics | 
                                        
                                             
                                                労働災害発生数
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                障がい者雇用率
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                平均残業時間
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                女性従業員比率
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                従業員エンゲージメントスコア
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                男性育休取得率
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                有休取得率
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                一人当り教育研修費
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                女性管理職比率
                                                
                                             
                                        
                                     | 
                                
                            
| Metrics unit | 
                                        
                                             
                                                件
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                時間/月
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                円
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                            
| Target period | 
                                        
                                             
                                                2030年度
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2030年度
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2030年度
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2030年度
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2030年度
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2030年度
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2030年度
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2030年度
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2030年度
                                                
                                             
                                        
                                     | 
                                
                            
| Targets | 
                                        
                                             
                                                0
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                3.0
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                15.0
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                30.0
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                3.80
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                85.0
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                80.0
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                25.0
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                            
| Performance | 
                                        
                                             
                                                5
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2.6
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                24.9
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                19.9
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                3.23
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                40.0
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                67.8
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                63,000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                7.8
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     |