Statement Of Changes In Equity
| Concept | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                3,025,950,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,380,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -71,755,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,827,692,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                341,299,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                341,299,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                96,488,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                270,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                67,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,367,250,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                283,703,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                270,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,380,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                205,836,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                188,578,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,168,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                13,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -71,755,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,979,921,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                188,578,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                128,327,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,781,663,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                67,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -70,616,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,380,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,866,733,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                181,824,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                270,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                181,824,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                160,170,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                67,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,247,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                259,062,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,066,130,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Dividends of surplus | — | — | — | — | — | — | — | 
                                                -31,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -31,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -31,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -31,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -31,843,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -31,843,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -31,843,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -31,843,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Profit (loss) | — | — | — | — | — | — | — | 
                                                77,867,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                77,867,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                77,867,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                77,867,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -53,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -53,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -53,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -53,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | — | 
                                                152,721,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                152,721,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                152,721,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                6,754,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                6,754,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                6,754,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | — | 
                                                152,721,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                46,028,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,028,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -31,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                198,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                152,721,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                77,867,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -79,454,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -85,069,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                6,754,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -31,843,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -53,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -86,208,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,754,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,139,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |