Statement Of Members' Equity
| Concept | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of members' equity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of members' equity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                5,945,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,234,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,234,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,043,559,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -359,715,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,958,842,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,027,184,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -814,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                14,131,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,003,559,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                13,317,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                5,486,159,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                997,128,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,020,753,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -319,237,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,747,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                14,694,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                18,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                80,451,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                65,757,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,037,128,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                5,566,629,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,747,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,030,551,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,459,597,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,716,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,304,393,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,014,176,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                990,551,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -196,233,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,308,091,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,202,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -17,919,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,459,597,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | — | 
                                                591,669,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                591,669,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                591,669,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                591,669,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                394,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                394,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                394,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                394,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | — | — | — | 
                                                -18,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -67,134,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -66,571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                -562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -67,152,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                492,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                83,676,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                84,168,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                84,168,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | — | 
                                                6,431,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -18,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                486,981,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                486,981,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -67,134,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                459,366,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -66,571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                6,431,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                6,431,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                392,213,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -40,477,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,576,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                492,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                6,576,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                287,918,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                83,676,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                178,067,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                262,235,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                6,576,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -123,004,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                84,168,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                287,918,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — |