Disclosure Of Sustainability-Related Financial Information
| Concept | 
                                    
                                        As at 2024-03-31  | 
                            
                                
                                    
                                        As at 2024-03-31  | 
                            
                                
                                    
                                        As at 2024-03-31  | 
                            
                        
|---|---|---|---|
| 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 | 
                                        
                                             
                                                一人当たり教育研修費(単体)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                管理職に占める女性従業員の割合(単体)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                管理職に占める女性従業員の割合(連結)
                                                
                                             
                                        
                                     | 
                                
                            
| Metrics unit | 
                                        
                                             
                                                円
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                            
| Target period | — | 
                                        
                                             
                                                2030年
                                                
                                             
                                        
                                     | 
                                
                                    — | 
| Targets | — | 
                                        
                                             
                                                15
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                            
| Performance | 
                                        
                                             
                                                79,108
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                3.6
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                4.5
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     |