Directors (And Other Officers)
| Concept | 
                                    
                                        As at 2024-09-30  | 
                            
                                
                                    
                                        As at 2024-09-30  | 
                            
                                
                                    
                                        As at 2024-09-30  | 
                            
                                
                                    
                                        As at 2024-09-30  | 
                            
                                
                                    
                                        As at 2024-09-30  | 
                            
                                
                                    
                                        As at 2024-09-30  | 
                            
                                
                                    
                                        As at 2024-09-30  | 
                            
                                
                                    
                                        As at 2024-09-30  | 
                            
                                
                                    
                                        As at 2024-09-30  | 
                            
                                
                                    
                                        As at 2024-09-30  | 
                            
                                
                                    
                                        As at 2024-09-30  | 
                            
                                
                                    
                                        As at 2024-09-30  | 
                            
                                
                                    
                                        As at 2024-09-30  | 
                            
                        
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Directors (and other officers) | |||||||||||||
| Information about directors (and corporate auditors) | |||||||||||||
| Official title or position | 
                                        
                                             
                                                取締役
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                監査役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役社長(代表取締役)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                監査役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                常務取締役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                常勤監査役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役
                                                
                                             
                                        
                                     | 
                                
                            
| Name | 
                                        
                                             
                                                松村 伸也
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                永野 隆
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                瀬口 力
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                古田 哲朗
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                城 浩輔
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                西村 信男
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                塚本 則幸
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                前田 隆
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                難家 嘉之
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                瀬口 悦子
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                林田 貴文
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                杉山 浩司
                                                
                                             
                                        
                                     | 
                                
                            
| Date of birth | 
                                        
                                             
                                                1978-04-28
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                1974-04-26
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1973-12-14
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1973-02-16
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1984-04-04
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1973-06-22
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1968-06-10
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1972-05-19
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1972-06-27
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1953-12-02
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1963-12-13
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1979-09-26
                                                
                                             
                                        
                                     | 
                                
                            
| Career summary | — | ||||||||||||
| Term of office | 
                                        
                                             
                                                (注)1
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                (注)2
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)1
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)2
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)1
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)1
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)1
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)1
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)1
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)1
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)2
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)1
                                                
                                             
                                        
                                     | 
                                
                            
| Number of shares held (Ordinary shares) | 
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                12,622,132
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                10,554,640
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                363
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                96,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                13,812
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1,957,317
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     |