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 | 
                                                855,979,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,113,870,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | 
                                                -146,978,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -134,334,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | 
                                                885,164,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -953,774,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | 
                                                -1,660,574,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,676,452,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of property, plant and equipment | 
                                                146,686,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                300,511,000
                                                
                                                    
                                                        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
                                                    
                                                
                                             | — | — | 
| Other, net | 
                                                17,295,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -4,227,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | 
                                                -1,544,831,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -6,142,884,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | |||||
| Proceeds from issuance of bonds | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                147,450,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from long-term borrowings | 
                                                620,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Repayments of long-term borrowings | 
                                                -918,846,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -3,501,081,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Redemption of bonds | 
                                                -7,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -157,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from issuance of shares | 
                                                223,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,863,720,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of treasury shares | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -280,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | 
                                                1,277,677,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,300,495,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | 
                                                -39,038,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -49,788,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | 
                                                -4,660,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -15,268,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | 
                                                613,349,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                188,567,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | — | 
                                                2,239,942,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,626,592,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,438,024,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |