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 | 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 | 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 | 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 | 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 | 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 | 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 | 2023-01-01 to 2023-12-31 | 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 | 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 | 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 | 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 | 2022-01-01 to 2022-12-31 | As at 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 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 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 | 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 | As at 2021-12-31 | As at 2021-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | — | 
                                                37,130,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                37,130,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,193,100,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,065,287,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                374,743,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,599,348,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                4,292,599,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                374,743,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                733,119,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -8,363,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,193,100,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -8,363,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,198,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,822,364,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                358,375,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                374,743,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,699,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,198,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                734,019,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,348,730,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                19,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                34,673,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,352,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -8,246,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,352,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,015,956,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,322,095,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -8,246,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                210,062,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                210,062,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                367,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                53,990,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,918,939,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,136,089,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                577,503,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                210,062,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                577,503,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,101,416,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,139,619,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,322,095,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,673,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,681,523,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,969,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,969,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -36,575,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,380,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,681,523,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -36,575,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,429,387,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,380,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                178,723,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                178,723,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                380,022,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,397,717,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                558,745,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                178,723,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                558,745,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,382,418,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,696,822,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,454,066,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Issuance of new shares | — | — | — | — | — | — | — | — | — | — | 
                                                307,638,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                307,638,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                153,819,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                153,819,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                153,819,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                307,638,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                153,819,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                307,638,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                153,819,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Dividends of surplus | — | — | 
                                                -320,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -320,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -320,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -320,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -320,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -320,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -320,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -113,925,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -113,925,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -113,925,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -113,925,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -113,925,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -113,925,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -113,925,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Profit (loss) | — | — | 
                                                1,191,958,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                792,280,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                1,191,958,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,191,958,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,191,958,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                754,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                566,336,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                754,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                754,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                754,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | 
                                                2,457,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,457,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,011,297,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -7,154,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,025,600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -7,154,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                21,457,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                19,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                19,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -12,295,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -12,295,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                40,666,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,027,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                53,990,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,027,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                -12,295,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | 
                                                2,457,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                871,004,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,457,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,011,297,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -7,154,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,806,407,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -9,065,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -117,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -7,154,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                780,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                164,680,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                164,680,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                871,004,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                164,680,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                459,729,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,191,183,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                155,615,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,212,640,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -117,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                156,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                19,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                640,571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -12,295,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -12,295,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                561,889,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,027,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                53,990,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -12,580,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,329,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,027,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                521,222,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,338,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,338,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                640,571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,338,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                442,796,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                718,997,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,758,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,329,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,758,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                706,702,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |