Disclosure Of Sustainability-Related Financial Information
| Concept | 
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                        
|---|---|---|
| Disclosure of Sustainability-related Financial Information | ||
| Description of metrics related to policy on development of human resources and internal environment, and targets and performance using such metrics | ||
| Metrics | 
                                        
                                             
                                                コンサルタント数
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                従業員数
                                                
                                             
                                        
                                     | 
                                
                            
| Metrics unit | 
                                        
                                             
                                                名
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                名
                                                
                                             
                                        
                                     | 
                                
                            
| Target period | 
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                            
| Targets | 
                                        
                                             
                                                600
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                800
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                            
| Performance | 
                                        
                                             
                                                652
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                711
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     |