Consolidated Statement Of Changes In Equity
| Concept | As at 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 | 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 | 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 | 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 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 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 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 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 | 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 | As at 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 | As at 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 | 2023-01-01 to 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 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 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 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 | 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 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of changes in equity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                1,788,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,788,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -34,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,302,619,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                3,302,619,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,203,277,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -34,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,261,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                733,869,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -3,821,200,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                684,695,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,732,678,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -3,821,200,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -34,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                686,449,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,203,277,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                732,115,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -34,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -36,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -36,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                831,617,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,442,372,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,481,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,281,233,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,930,959,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,930,959,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,481,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,279,764,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                831,617,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -36,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,279,101,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -36,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,889,857,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,281,896,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                943,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -222,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -222,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -222,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,873,475,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,628,138,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                714,244,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                714,244,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,628,138,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,987,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,856,767,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,900,413,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -222,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,772,484,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,813,586,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,813,586,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,899,692,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,629,961,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                943,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Issuance of new shares | — | — | — | — | — | — | — | 
                                                371,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                743,319,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                371,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                743,319,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                743,319,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                743,319,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                371,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                371,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                371,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                234,746,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                234,746,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                117,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                117,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                117,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                234,746,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                117,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                234,746,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                117,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Profit (loss) attributable to owners of parent | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -1,290,305,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,290,305,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                -1,290,305,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -812,411,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -812,411,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -812,411,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | 
                                                1,089,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,090,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,090,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                1,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                1,089,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -244,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -244,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -15,987,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -16,045,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -58,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                1,089,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                371,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -596,538,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                371,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -595,447,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -545,895,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -546,986,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                371,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                371,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,290,305,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,339,857,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,339,857,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                371,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,089,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -244,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -244,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -15,987,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -593,711,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -853,205,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -577,665,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                117,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                117,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -853,205,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                117,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -812,411,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -618,459,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                117,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -618,517,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                117,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |