Semi-Annual Consolidated Statement Of Cash Flows
| Concept | As at 2024-08-31 | 2024-03-01 to 2024-08-31 | As at 2024-02-29 | 2023-03-01 to 2023-08-31 | As at 2023-08-31 | As at 2023-02-28 | 
|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of cash flows | ||||||
| Statement of cash flows | ||||||
| Cash flows from operating activities | ||||||
| Subtotal | — | 
                                                261,127,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,408,658,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                -69,472,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -58,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                290,223,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,528,719,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | ||||||
| Purchase of property, plant and equipment | — | 
                                                -990,172,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,065,382,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of property, plant and equipment | — | 
                                                72,250,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                20,309,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of shares of subsidiaries resulting in change in scope of consolidation | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -3,386,910,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Loan advances | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,284,688,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -924,486,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -5,725,243,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | ||||||
| Proceeds from issuance of bonds | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                147,450,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from long-term borrowings | — | 
                                                320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Repayments of long-term borrowings | — | 
                                                -419,923,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -733,312,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Redemption of bonds | — | 
                                                -3,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -153,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from issuance of shares | — | 
                                                114,279,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                32,385,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of treasury shares | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -122,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                1,174,094,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,091,278,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -35,907,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                7,009,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                17,576,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                546,841,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -145,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                2,173,433,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,626,592,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,292,917,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,438,024,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |