Semi-Annual Consolidated Statement Of Changes In Equity
| Concept | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                -1,277,349,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                218,024,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                40,428,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                52,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                40,428,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                70,448,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,347,118,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                16,804,363,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,350,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,576,318,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                317,611,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,277,349,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                206,733,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                709,077,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                165,498,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                16,863,688,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                197,474,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,144,590,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,316,214,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,241,048,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                16,844,792,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                40,428,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,106,262,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -7,205,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                14,995,668,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                52,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,277,189,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,054,834,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                42,625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                42,625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                42,625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                710,328,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                197,474,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                29,419,084,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,507,359,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                218,024,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,350,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,277,189,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                165,498,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,150,978,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,852,222,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                192,493,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                157,073,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                15,038,293,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                124,472,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,977,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,687,390,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                197,474,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                92,771,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,139,916,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                165,498,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,977,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,482,924,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,656,202,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,977,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                710,799,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                218,024,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,277,189,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,277,189,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,350,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,722,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                856,566,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                52,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,463,963,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,628,224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,049,315,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Dividends of surplus | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -1,325,636,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -1,325,636,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,325,636,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,325,636,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -1,325,636,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,325,636,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,325,636,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -1,178,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,178,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                -1,178,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,178,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -1,178,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,178,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,178,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Profit (loss) attributable to owners of parent | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                3,051,142,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                3,051,142,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,051,142,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                3,548,111,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                3,548,111,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,548,111,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | — | — | 
                                                -2,196,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                125,117,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,196,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                240,856,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                49,660,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -2,196,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                77,654,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                365,973,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -2,196,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                249,695,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -10,928,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                14,647,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                64,301,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                14,647,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,021,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                14,647,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                14,647,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                317,716,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,196,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                125,117,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,196,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -159,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -159,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                240,856,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,808,854,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,808,695,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                49,660,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,806,498,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,724,095,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                77,654,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,090,069,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,725,506,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,808,854,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,196,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,251,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                249,695,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,367,443,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,369,298,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -10,928,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,367,443,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,382,091,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                64,301,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,647,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,021,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                14,647,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,367,443,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,647,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,369,768,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,687,014,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -470,000
                                                
                                                    
                                                        JPY
                                                    
                                                
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