Semi-Annual Consolidated Statement Of Changes In Equity
| Concept | 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 | 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 | 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 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 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 | 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 | 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 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of changes in equity | |||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | |||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                3,259,148,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                529,900,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,189,492,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,189,492,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                50,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -6,425,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,259,148,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,026,082,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                496,182,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,950,362,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                496,182,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,026,082,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -6,425,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,880,706,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                529,900,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                50,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,950,362,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,880,706,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                579,900,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,520,377,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,590,186,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                496,182,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                496,182,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -6,272,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,590,186,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,520,377,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | |||||||||||||||||||||||||||||||||||||||||||||
| Dividends of surplus | — | — | — | — | — | 
                                                -43,355,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -43,355,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -43,355,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -43,355,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -36,131,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -36,131,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -36,131,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -36,131,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | — | — | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                308,785,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                308,785,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                308,785,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                308,785,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -529,900,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                360,328,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                360,175,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                360,175,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                529,900,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                529,900,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -152,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                360,328,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — |