Disclosure Of Sustainability-Related Financial Information
| Concept | 
                                    
                                        As at 2024-03-31  | 
                            
                                
                                    
                                        As at 2024-03-31  | 
                            
                                
                                    
                                        As at 2024-03-31  | 
                            
                                
                                    
                                        As at 2024-03-31  | 
                            
                                
                                    
                                        As at 2024-03-31  | 
                            
                                
                                    
                                        As at 2024-03-31  | 
                            
                                
                                    
                                        As at 2024-03-31  | 
                            
                                
                                    
                                        As at 2024-03-31  | 
                            
                                
                                    
                                        As at 2024-03-31  | 
                            
                                
                                    
                                        As at 2024-03-31  | 
                            
                                
                                    
                                        As at 2024-03-31  | 
                            
                        
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                        
                                             
                                                公募型教育の実施
(単体)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                ストック有給休暇(注)
延べ利用日数(単体)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                女性従業員比率
(全社員)(単体)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                障がい者雇用率(単体)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                計画的ジョブローテーションでの成長機会の提供
(単体)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                NexTプロジェクト(注)2参画者数(単体)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                新卒
採用者数
(単体)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                キャリア
採用者数
(単体)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                TOPミーティング(注)1
参画者延べ人数(単体)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                社員一人当たり
研修投資額(単体)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                ストック有給休暇(注)
利用人数(単体)
                                                
                                             
                                        
                                     | 
                                
                            
| Metrics unit | 
                                        
                                             
                                                人
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                日
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                人
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                人
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                人
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                人
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                人
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                円
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                人
                                                
                                             
                                        
                                     | 
                                
                            
| Targets | — | — | — | 
                                        
                                             
                                                2.5
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | — | — | — | 
                                        
                                             
                                                30,000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | 
| Performance | 
                                        
                                             
                                                55
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                438
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                29.3
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2.3
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                77
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                12
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                30
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                35
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                53
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                39,692
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                40
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     |