Disclosure Of Sustainability-Related Financial Information
| 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  | 
                            
                                
                                    
                                        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 | 
                                        
                                             
                                                利用率
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                障碍者
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                女性
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                安全朝礼の参加者率
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                障碍者
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1級建築施工管理技士
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                技術士
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                キャリア人財
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                休業災害件数
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                キャリア人財
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1級建築士
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                女性
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1級土木施工管理技士
                                                
                                             
                                        
                                     | 
                                
                            
| Metrics unit | 
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                件
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                %
                                                
                                             
                                        
                                     | 
                                
                            
| Target period | 
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2026年3月期
                                                
                                             
                                        
                                     | 
                                
                            
| Targets | 
                                        
                                             
                                                30
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                100
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                30
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                100
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                10
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                50
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                50
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                100
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                40
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                20
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                100
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                70
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                            
| Performance | 
                                        
                                             
                                                15
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                91
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                19
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                94
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                33
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                99
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                3
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                44
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                98
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                54
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     |