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 | 
                                                3,046,993,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,496,469,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,163,262,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,521,079,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | — | 
                                                4,744,151,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,819,377,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Impairment losses | — | — | 
                                                1,223,100,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest and dividend income | — | — | 
                                                -130,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -83,520,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest expenses | — | — | 
                                                314,465,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                284,542,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in provision for bonuses | — | — | 
                                                40,252,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -11,309,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Decrease (increase) in trade receivables | — | — | 
                                                17,778,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -66,700,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Decrease (increase) in inventories | — | — | 
                                                -5,606,027,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -7,958,866,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in trade payables | — | — | 
                                                -155,854,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                295,316,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                401,881,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                276,923,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Subtotal | — | — | 
                                                6,455,705,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                619,048,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest and dividends received | — | — | 
                                                130,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,520,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest paid | — | — | 
                                                -319,687,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -294,955,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Income taxes paid | — | — | 
                                                -1,028,093,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -107,407,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) operating activities | — | — | 
                                                5,239,307,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                784,580,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from investing activities | |||||||
| Purchase of investment securities | — | — | 
                                                -850,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,818,823,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from sale of investment securities | — | — | 
                                                182,578,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) investing activities | — | — | 
                                                -3,419,260,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,831,011,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from financing activities | |||||||
| Proceeds from short-term borrowings | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Repayments of short-term borrowings | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -9,078,540,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from long-term borrowings | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,900,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Repayments of long-term borrowings | — | — | 
                                                -5,246,765,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,110,178,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Purchase of treasury shares | — | — | 
                                                -147,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -147,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Dividends paid | — | — | 
                                                -954,357,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -701,803,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) financing activities | — | — | 
                                                -5,656,653,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,101,096,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | — | 
                                                146,846,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                82,884,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | — | 
                                                -3,689,759,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,137,550,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash and cash equivalents | — | 
                                                7,159,544,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                10,849,304,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,598,633,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |