Treasury Shares, Etc.
| Concept | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 
|---|---|---|---|---|
| Treasury shares, etc. | ||||
| Treasury shares, etc. | ||||
| Name of shareholder | — | 
                                                日本港運㈱
                                                
                                             | 
                                                日本郵船㈱
                                                
                                             | 
                                                三洋海事㈱
                                                
                                             | 
| Address of shareholder | — | 
                                                兵庫県神戸市中央区海岸通5-1-3
                                                
                                             | 
                                                東京都千代田区丸の内
2-3-2
                                                
                                             | 
                                                兵庫県尼崎市中在家町
3-449
                                                
                                             | 
| Number of shares held in own name | 
                                                27,308,200
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                2,400
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                27,301,300
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                4,500
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Number of shares held in others' names | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Total number of shares held | 
                                                27,308,200
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                2,400
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                27,301,300
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                4,500
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Shareholding ratio | 
                                                0.0592
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0592
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             |