Consolidated Statement Of Changes In Equity
| Concept | As at 2024-08-31 | 2023-03-01 to 2024-02-29 | 2023-03-01 to 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | 2023-03-01 to 2024-02-29 | As at 2023-02-28 | 2022-03-01 to 2023-02-28 | 2022-03-01 to 2023-02-28 | As at 2023-02-28 | 2022-03-01 to 2023-02-28 | As at 2023-02-28 | 2022-03-01 to 2023-02-28 | As at 2023-02-28 | 2022-03-01 to 2023-02-28 | 2022-03-01 to 2023-02-28 | 2022-03-01 to 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2023-02-28 | As at 2022-02-28 | As at 2022-02-28 | As at 2022-02-28 | As at 2022-02-28 | As at 2022-02-28 | As at 2022-02-28 | As at 2022-02-28 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of changes in equity | ||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                25,337,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -931,152,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                43,419,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                476,785,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                497,785,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                476,785,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -931,152,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,419,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -794,482,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -794,482,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                100,119,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                436,800,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                436,800,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                100,119,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                457,800,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -522,262,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                285,294,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                69,327,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                285,294,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                69,327,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                306,294,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -522,262,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||
| Issuance of new shares | — | 
                                                39,985,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                79,970,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                39,985,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                39,985,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                79,970,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                303,012,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                151,506,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                151,506,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                151,506,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                303,012,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                39,985,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -136,669,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -56,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                39,985,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                39,985,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -56,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -136,669,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                30,793,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                151,506,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -272,219,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                151,506,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -272,219,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                151,506,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,793,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — |