Consolidated Statement Of Cash Flows
| Concept | As at 2025-02-28 | 2024-09-01 to 2025-02-28 | As at 2024-08-31 | As at 2024-02-29 | 2023-09-01 to 2024-02-29 | As at 2023-08-31 | 
|---|---|---|---|---|---|---|
| Consolidated statement of cash flows | ||||||
| Statement of cash flows | ||||||
| Cash flows from operating activities | ||||||
| Subtotal | — | 
                                                599,917,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                68,518,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest and dividends received | — | 
                                                1,946,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                246,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest paid | — | 
                                                -10,566,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -6,370,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes paid | — | 
                                                -195,031,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -40,188,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | — | 
                                                403,247,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                23,915,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from investing activities | ||||||
| Purchase of property, plant and equipment | — | 
                                                -856,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -11,721,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Purchase of investment securities | — | 
                                                -1,149,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -428,251,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -127,984,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Purchase of shares of subsidiaries resulting in change in scope of consolidation | — | 
                                                -386,313,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -111,663,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from financing activities | ||||||
| Proceeds from issuance of shares | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                132,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Dividends paid | — | 
                                                -21,350,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -20,958,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from long-term borrowings | — | 
                                                718,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                750,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Repayments of long-term borrowings | — | 
                                                -448,762,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -224,419,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) financing activities | — | 
                                                250,173,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                305,012,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                225,169,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                200,943,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | 
                                                3,923,405,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,698,236,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,490,614,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,289,670,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |