Employees
| Concept | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 
|---|---|---|---|---|
| Employees | ||||
| Metrics related to human capital diversity | ||||
| Metrics of consolidated subsidiaries | ||||
| Consolidated subsidiaries | 
                                                ㈱G‐7ミートテラバヤシ
                                                
                                             | 
                                                ㈱G‐7バイクワールド
                                                
                                             | 
                                                ㈱G‐7・オート・サービス
                                                
                                             | 
                                                ㈱G‐7スーパーマート
                                                
                                             | 
| Ratio of female employees in managerial positions | 
                                                0.048
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                0.035
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
| Ratio of male employees taking childcare leave | ||||
| All employees | 
                                                0.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                0.500
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
| Regular employees | 
                                                0.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                0.500
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
| Non-regular employees | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
| Differences in wages between male and female employees | ||||
| All employees | 
                                                0.469
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.644
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.600
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.841
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Regular employees | 
                                                0.796
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.761
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.721
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.713
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Non-regular employees | 
                                                0.893
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.209
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.992
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.201
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             |