Statement Of Changes In Equity
| Concept | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 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 | 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 | 2023-04-01 to 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 | As at 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 | 2023-04-01 to 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 | As at 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 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 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                2,585,957,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                950,288,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,353,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                201,050,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,603,761,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -118,016,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,417,147,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                458,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -738,226,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,468,399,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                956,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -118,016,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                956,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,353,511,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                862,014,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                862,014,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,353,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -738,192,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                907,275,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                6,276,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -117,871,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -117,871,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,322,414,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                201,050,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,241,916,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,646,774,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,304,200,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,691,911,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,353,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -117,871,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,982,133,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                843,800,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -117,871,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,420,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                843,800,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -917,553,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,092,584,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                862,138,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                201,050,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | — | — | — | — | — | — | 
                                                43,013,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                43,013,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                43,013,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                43,013,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                160,311,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                160,311,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                160,311,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                160,311,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disposal of treasury shares | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                3,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                3,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | 
                                                -145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                -145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                94,733,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -5,817,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,013,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                43,013,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                232,445,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                94,733,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                94,733,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -34,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                226,483,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                18,214,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                18,214,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,136,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                260,927,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                259,783,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                18,214,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                179,361,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,144,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                45,136,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |