Semi-Annual Statement Of Cash Flows
| Concept | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2023-03-31 | 
|---|---|---|---|---|---|
| Semi-annual statement of cash flows | |||||
| Statement of cash flows | |||||
| Cash flows from operating activities | |||||
| Subtotal | — | 
                                                1,620,145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                809,753,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | — | 
                                                28,166,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,599,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                -72,921,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -55,541,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes paid | — | 
                                                -141,822,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -243,160,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                1,475,450,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                565,686,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | — | 
                                                -535,923,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -591,060,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of property, plant and equipment | — | 
                                                12,958,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                88,085,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of investment securities | — | 
                                                -600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of investment securities | — | 
                                                164,025,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,450,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Loan advances | — | 
                                                -262,986,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -10,817,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from collection of loans receivable | — | 
                                                81,725,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                85,841,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                9,600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,150,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -417,790,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -620,688,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | |||||
| Proceeds from short-term borrowings | — | 
                                                2,663,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,559,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Repayments of short-term borrowings | — | 
                                                -2,361,708,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,345,708,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from long-term borrowings | — | 
                                                2,200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,850,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Repayments of long-term borrowings | — | 
                                                -2,474,889,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,178,410,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of treasury shares | — | 
                                                -13,415,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -31,191,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid | — | 
                                                -74,755,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -75,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -255,639,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -417,625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                -240,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,960,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                801,779,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -470,665,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                2,906,008,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,104,229,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,559,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |