Semi-Annual Consolidated Statement Of Changes In Equity
| Concept | 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 | 2022-01-01 to 2022-12-31 | As at 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2021-12-31 | As at 2021-12-31 | As at 2021-12-31 | As at 2021-12-31 | As at 2021-12-31 | As at 2021-12-31 | As at 2021-12-31 | As at 2021-12-31 | As at 2021-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of changes in equity | |||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | |||||||||||||||||||||||||||||||||||||||||||||
| Net assets | — | 
                                                17,741,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,388,422,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,157,723,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,236,350,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,139,981,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,988,202,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,988,202,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,236,350,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -4,016,331,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,790,746,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,696,798,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,696,798,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,777,192,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                2,097,017,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,016,331,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,554,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,394,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,773,693,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,893,049,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,515,929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,773,693,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,115,710,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,115,710,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,857,654,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Cumulative effects of changes in accounting policies | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                232,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                232,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                232,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                232,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Restated balance | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                35,394,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,773,460,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,893,282,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,515,929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,773,460,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,115,710,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,115,710,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,857,887,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | |||||||||||||||||||||||||||||||||||||||||||||
| Issuance of new shares | 
                                                582,808,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                291,404,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                582,808,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                291,404,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                291,404,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                581,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                581,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,162,175,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                581,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,162,175,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,187,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,187,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -21,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -21,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | 
                                                -637,210,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                291,404,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,220,018,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,187,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -633,022,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                291,404,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -1,220,018,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                291,404,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -21,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,242,871,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                581,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,242,871,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                581,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -80,695,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                581,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -102,536,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — |