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 | 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 | 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 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 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 | 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 | 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 | 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 | 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 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 | As at 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                12,060,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                16,028,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                376,477,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,308,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,308,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -70,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -70,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,190,381,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,190,381,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,078,381,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,296,549,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                156,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,888,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -3,208,046,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,060,646,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,037,267,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -3,208,046,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,308,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,075,015,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,078,381,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,337,593,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                158,415,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                12,060,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,216,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                16,428,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,572,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,572,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,572,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,823,717,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,629,324,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,872,926,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                886,437,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,935,717,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,935,717,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -70,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,872,926,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -70,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                72,147,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,360,149,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,823,717,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,256,929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                70,575,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,062,606,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                896,925,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                12,370,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,491,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -776,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -776,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -776,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -70,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                44,714,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,381,132,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,691,550,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -70,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,821,276,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,821,276,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,691,550,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,293,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,309,754,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,074,214,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,060,164,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,933,276,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,933,276,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,062,931,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,571,615,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,060,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Issuance of new shares | — | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                249,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                499,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                249,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                499,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                499,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                499,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                249,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                249,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                249,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                4,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                4,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                2,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                4,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                4,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Profit (loss) | — | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -335,119,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -335,119,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -441,267,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -335,119,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -335,119,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -55,573,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -181,376,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -181,376,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -181,376,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -181,376,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | — | — | — | 
                                                360,048,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                87,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                447,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                83,959,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -187,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,845,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,135,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -795,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -795,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                26,656,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,842,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                25,861,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -795,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -795,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                360,048,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                254,664,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                174,209,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                254,664,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                87,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                178,089,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,528,366,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,080,664,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                254,664,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,959,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                254,664,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -407,943,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -335,119,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -335,119,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,233,943,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -187,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,845,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,135,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -795,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -795,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                26,656,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -20,983,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -181,376,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                25,861,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -52,825,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -795,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -181,376,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -57,708,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -176,493,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -177,288,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |