Analysis Of Income And Expense [Abstract]
| Concept | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 
|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||
| Revenue [abstract] | ||||||
| Revenue | — | 
                                                72,322,937
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
                                                74,832,510
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | 
| Material income and expense [abstract] | ||||||
| Operating expense | — | 
                                                1,916,049
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
                                                1,909,367
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | 
| Expenses by nature [abstract] | ||||||
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||||||
| Depreciation and amortisation expense [abstract] | ||||||
| Depreciation expense | — | 
                                                18,975,040
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
                                                26,973,885
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | 
| Impairment loss (reversal of impairment loss) recognised in profit or loss | — | 
                                                4,635,412
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
                                                –
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | 
| Expenses, by nature | — | 
                                                25,526,501
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | — | 
                                                28,883,252
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | — | 
| Disclosure of attribution of expenses by nature to their function [text block] | — | — | — | — | — | — | 
| Disclosure of attribution of expenses by nature to their function [abstract] | ||||||
| Disclosure of attribution of expenses by nature to their function [line items] | ||||||
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||
| Comprehensive income | 
                                                –
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                47,237,280
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                47,237,280
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                46,097,418
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                46,097,418
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             | 
                                                –
                                                
                                                    
                                                        GBP
                                                    
                                                
                                             |