Statement Of Members' Equity
| Concept | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of members' equity | |||||||||||||||||||||||||||||||||||||||||||||
| Statement of members' equity | |||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,072,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                361,556,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                750,348,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                371,751,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -32,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                361,556,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                17,072,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                750,348,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                370,618,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,377,475,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                646,112,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,377,250,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                360,519,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                360,519,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                646,112,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                587,229,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,316,974,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                359,853,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                359,853,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,316,974,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                369,890,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                587,229,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | |||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | 
                                                -629,039,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -629,039,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -629,039,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -629,039,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                58,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                58,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                58,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                58,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | — | — | 
                                                -224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | — | 
                                                -629,039,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -32,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,133,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -629,039,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -627,126,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,036,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -626,902,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,036,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                60,276,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                666,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                58,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                60,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                727,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                58,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                666,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — |