Remuneration For Directors (And Other Officers)
| Concept | 
                                    
                                        2022-10-01 to 2023-09-30  | 
                            
                                
                                    
                                        2022-10-01 to 2023-09-30  | 
                            
                                
                                    
                                        2022-10-01 to 2023-09-30  | 
                            
                        
|---|---|---|---|
| Remuneration for directors (and other officers) | |||
| Remuneration by category of directors (and other officers) | |||
| Remuneration by category of directors (and other officers) | |||
| Total amount of remuneration | 
                                        
                                             
                                                50,140,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                3,600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2,360,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                            
| Total amount of remuneration by type | |||
| Fixed remuneration | 
                                        
                                             
                                                48,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                3,600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2,360,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                            
| Performance-linked remuneration | 
                                        
                                             
                                                1,300,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                            
| Retirement benefits | 
                                        
                                             
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                            
| Number of recipient directors (and other officers) | 
                                        
                                             
                                                3
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                3
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     |