Quarterly Statement Of Cash Flows
| Concept | 2023-05-01 to 2024-04-30 | 2023-05-01 to 2024-04-30 | As at 2024-04-30 | 2022-05-01 to 2023-04-30 | 2022-05-01 to 2023-04-30 | As at 2023-04-30 | As at 2022-04-30 | 
|---|---|---|---|---|---|---|---|
| Quarterly statement of cash flows | |||||||
| Statement of cash flows | |||||||
| Cash flows from operating activities | |||||||
| Profit (loss) before income taxes | 
                                                2,105,090,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,817,312,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,244,124,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,497,446,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Depreciation | — | 
                                                406,517,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                369,928,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Impairment losses | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                18,388,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividend income | — | 
                                                -70,011,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -78,667,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest expenses | — | 
                                                134,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                391,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Foreign exchange losses (gains) | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -5,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Decrease (increase) in trade receivables | — | 
                                                790,871,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                48,462,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Decrease (increase) in inventories | — | 
                                                55,355,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                233,237,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Increase (decrease) in trade payables | — | 
                                                -173,625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -48,127,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -229,757,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,043,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Subtotal | — | 
                                                1,911,007,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,658,041,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | — | 
                                                76,200,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                88,856,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                -123,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -383,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes paid | — | 
                                                -322,748,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -656,580,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                1,664,336,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,089,934,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | |||||||
| Purchase of securities | — | 
                                                -3,200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of property, plant and equipment | — | 
                                                -1,050,868,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -290,652,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of investment securities | — | 
                                                -243,602,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -36,251,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -3,235,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -3,125,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -2,576,061,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                422,856,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | |||||||
| Repayments of long-term borrowings | — | 
                                                -102,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -126,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of treasury shares | — | 
                                                -445,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -243,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid | — | 
                                                -107,714,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -136,336,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -214,138,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -266,558,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                -16,105,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -9,051,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -1,141,968,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,237,181,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | — | — | 
                                                5,150,833,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                6,292,801,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,055,620,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |