Quarterly 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 | 
|---|---|---|---|---|---|---|
| Quarterly statement of cash flows | ||||||
| Statement of cash flows | ||||||
| Cash flows from operating activities | ||||||
| Profit (loss) before income taxes | — | 
                                                104,160,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                111,829,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Depreciation | — | 
                                                78,104,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                85,187,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Impairment losses | — | 
                                                2,323,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                20,719,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Increase (decrease) in allowance for doubtful accounts | — | 
                                                336,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,164,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividend income | — | 
                                                -2,904,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -3,843,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest expenses | — | 
                                                9,443,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                9,761,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Decrease (increase) in trade receivables | — | 
                                                -83,597,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -102,748,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Decrease (increase) in inventories | — | 
                                                -19,157,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -14,926,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Increase (decrease) in trade payables | — | 
                                                85,774,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                73,690,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -21,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,419,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Subtotal | — | 
                                                235,060,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                177,561,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | — | 
                                                2,924,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                31,968,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                -9,096,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -9,580,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes paid | — | 
                                                -4,201,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -4,398,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                224,687,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                195,550,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | ||||||
| Purchase of property, plant and equipment | — | 
                                                -172,166,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -144,670,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from collection of loans receivable | — | 
                                                40,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                80,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -7,340,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -153,025,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -74,054,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | ||||||
| Repayments of long-term borrowings | — | 
                                                -111,466,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -52,801,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of treasury shares | — | 
                                                -132,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -69,708,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -178,298,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                1,953,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -56,802,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                1,794,161,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,792,207,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,984,254,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,041,056,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |