Semi-Annual Consolidated Statement Of Cash Flows
| Concept | 2024-03-01 to 2025-02-28 | As at 2025-02-28 | 2023-03-01 to 2024-02-29 | As at 2024-02-29 | As at 2023-02-28 | 
|---|---|---|---|---|---|
| Semi-annual consolidated statement of cash flows | |||||
| Statement of cash flows | |||||
| Cash flows from operating activities | |||||
| Subtotal | 
                                                143,717,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -178,518,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | 
                                                1,288,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                26,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | 
                                                -4,523,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -5,162,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes paid | 
                                                -8,663,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -37,896,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | 
                                                168,300,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -171,564,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | 
                                                -45,160,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -5,076,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of investment securities | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -6,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of investment securities | 
                                                200,123,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | 
                                                -4,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -3,815,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | 
                                                113,615,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -22,834,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | |||||
| Repayments of long-term borrowings | 
                                                -295,476,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -365,476,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of treasury shares | 
                                                -199,091,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | 
                                                -322,103,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -90,043,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | 
                                                -685,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | 
                                                -40,873,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -284,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | — | 
                                                2,312,580,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,353,453,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,637,895,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |