Directors (And Other Officers)
| Concept | 
                                    
                                        As at 2025-06-25  | 
                            
                                
                                    
                                        As at 2025-06-25  | 
                            
                                
                                    
                                        As at 2025-06-25  | 
                            
                                
                                    
                                        As at 2025-06-25  | 
                            
                                
                                    
                                        As at 2025-06-25  | 
                            
                                
                                    
                                        As at 2025-06-25  | 
                            
                                
                                    
                                        As at 2025-06-25  | 
                            
                        
|---|---|---|---|---|---|---|---|
| Directors (and other officers) | |||||||
| Information about directors (and corporate auditors) | |||||||
| Official title or position | 
                                        
                                             
                                                取 締 役
グループCFO
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取 締 役
(常勤監査等委員)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                代表取締役
会長兼社長
グループCEO
兼グループCOO
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                取 締 役
(監査等委員)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取 締 役
(監査等委員)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                常務取締役
                                                
                                             
                                        
                                     | 
                                
                            
| Name | 
                                        
                                             
                                                作田 陽介
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                清水 聡子
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                稲葉 秀二
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                坂井  眞
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                上野 園美
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                宗雪 敏明
                                                
                                             
                                        
                                     | 
                                
                            
| Date of birth | 
                                        
                                             
                                                1977-11-10
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1975-08-09
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1962-10-17
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                1957-02-21
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1966-01-24
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1961-05-19
                                                
                                             
                                        
                                     | 
                                
                            
| Career summary | — | ||||||
| Term of office | 
                                        
                                             
                                                (注)2
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)1、3
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)2
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                (注)1、3
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)1、3
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)2
                                                
                                             
                                        
                                     | 
                                
                            
| Number of shares held (Ordinary shares) | 
                                        
                                             
                                                12,043
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                251
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                650,166
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                678,519
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1,506
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                5,021
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                9,532
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     |