Employees
| Concept | As at 2025-03-31 | As at 2025-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2021-03-31 | As at 2021-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Employees | ||||||||||
| Information about group | ||||||||||
| Number of employees of group | ||||||||||
| Number of employees | 
                                                1,219
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                933
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                909
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1,190
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1,203
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                936
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                962
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1,219
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1,335
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1,008
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             |