Statement Of Members' Equity
| Concept | As at 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 | 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 | 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 | 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 | 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 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of members' equity | |||||||||||||||||||||||||||||||||||||||||||||
| Statement of members' equity | |||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                3,979,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,366,761,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                150,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,216,761,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                377,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -101,928,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,979,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                337,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                337,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,810,570,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                337,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                337,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                150,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -54,081,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,149,602,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                377,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,810,570,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,999,602,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                377,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,770,023,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                150,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,634,991,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                337,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                337,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -81,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,634,991,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,920,023,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | |||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | — | 
                                                413,669,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                413,669,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                413,669,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                413,669,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                388,586,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                388,586,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                388,586,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                388,586,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                217,159,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                217,159,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                169,312,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -47,846,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                169,312,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                229,578,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                175,578,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                175,578,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -54,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                229,578,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — |