Semi-Annual Statement Of Cash Flows
| Concept | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|---|
| Semi-annual statement of cash flows | |||||||
| Statement of cash flows | |||||||
| Cash flows from operating activities | |||||||
| Profit (loss) before income taxes | 
                                                4,483,413,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                16,765,505,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,783,800,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,316,891,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | — | 
                                                1,203,081,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                800,727,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Impairment losses | — | — | 
                                                275,818,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest and dividend income | — | — | 
                                                -893,897,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -724,842,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest expenses | — | — | 
                                                147,792,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                66,133,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Decrease (increase) in trade receivables | — | — | 
                                                510,591,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -825,757,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in trade payables | — | — | 
                                                -160,721,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,145,152,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                359,452,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                193,013,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Subtotal | — | — | 
                                                5,631,866,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,938,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest and dividends received | — | — | 
                                                910,933,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                744,830,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest paid | — | — | 
                                                -173,534,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -78,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Income taxes paid | — | — | 
                                                -1,394,372,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,400,887,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) operating activities | — | — | 
                                                4,980,491,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,204,149,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from investing activities | |||||||
| Purchase of property, plant and equipment | — | — | 
                                                -2,405,102,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,382,608,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Purchase of investment securities | — | — | 
                                                -720,314,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,495,380,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from sale of investment securities | — | — | 
                                                1,187,029,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                -38,640,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -25,549,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) investing activities | — | — | 
                                                -4,502,377,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,953,368,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from financing activities | |||||||
| Proceeds from long-term borrowings | — | — | 
                                                7,623,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Repayments of long-term borrowings | — | — | 
                                                -1,657,684,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -836,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Purchase of treasury shares | — | — | 
                                                -4,334,506,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -156,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Dividends paid | — | — | 
                                                -646,785,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -566,710,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) financing activities | — | — | 
                                                853,961,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,905,556,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                -60,061,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -28,076,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | — | 
                                                1,332,075,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,156,336,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash and cash equivalents | — | 
                                                11,132,287,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                9,800,212,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,643,875,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |