Major Shareholders
| 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 | As at 2025-03-31 | As at 2025-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| Major shareholders | |||||||||||
| Major shareholders | |||||||||||
| Name | 
                                                WDI従業員持株会
                                                
                                             | 
                                                サントリー株式会社
                                                
                                             | 
                                                清水 謙
                                                
                                             | 
                                                宮内 義彦
                                                
                                             | 
                                                JPモルガン証券株式会社
                                                
                                             | 
                                                森 佳子
                                                
                                             | 
                                                清水 洋二
                                                
                                             | — | 
                                                Soken Corp.
                                                
                                             | 
                                                麒麟麦酒株式会社
                                                
                                             | 
                                                孫 正義
                                                
                                             | 
| Address | 
                                                東京都港区六本木5-5-1
                                                
                                             | 
                                                東京都港区台場2-3-3
                                                
                                             | 
                                                東京都港区
                                                
                                             | 
                                                東京都品川区
                                                
                                             | 
                                                東京都千代田区丸の内2-7-3
                                                
                                             | 
                                                東京都港区
                                                
                                             | 
                                                東京都港区
                                                
                                             | — | 
                                                東京都港区三田2-3-34
                                                
                                             | 
                                                東京都中野区中野4-10-2
                                                
                                             | 
                                                東京都港区
                                                
                                             | 
| Number of shares held | 
                                                72,840
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                60,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                154,300
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                36,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                67,348
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                36,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                636,740
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                2,651,228
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                1,512,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                40,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                36,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Shareholding ratio (excluding treasury shares) | 
                                                0.0116
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0096
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0247
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0058
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0108
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0058
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.1018
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.4239
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.2417
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0064
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0058
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             |