Employees
| 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 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 reporting company | ||||||||||||||||||
| Number of employees of reporting company | ||||||||||||||||||
| Number of employees | 
                                                377
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                197
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                377
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                6,340
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1,234
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                18,717
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                29,614
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                12,292
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                9,286
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                5,378
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                12,235
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                30,672
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                31,141
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                12,233
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                12,467
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                31,054
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                12,453
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                31,121
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             |