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 | — | 
                                                834,670,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,385,871,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | — | 
                                                26,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,905,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                -26,513,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -12,929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes paid | — | 
                                                -73,982,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -66,029,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                903,073,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,337,851,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | — | 
                                                -750,785,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -473,430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of property, plant and equipment | — | 
                                                54,834,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,670,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of investment securities | — | 
                                                -5,608,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,196,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of investment securities | — | 
                                                49,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Loan advances | — | 
                                                -139,374,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from collection of loans receivable | — | 
                                                150,828,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -7,384,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -47,690,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -121,015,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,955,439,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | |||||
| Repayments of long-term borrowings | — | 
                                                -741,466,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -813,301,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of treasury shares | — | 
                                                -43,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -161,907,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid | — | 
                                                -91,769,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -90,816,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                111,524,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                160,589,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                65,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,906,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                893,647,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -455,091,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                1,789,091,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                895,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,350,536,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |