Quarterly Balance Sheet
| Concept | As at 2025-03-31 | As at 2024-09-30 | 
|---|---|---|
| Quarterly balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                1,984,478,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,052,891,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                378,658,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                366,501,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                90,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                87,311,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                150,177,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                150,097,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                87,554,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                129,115,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                3,778,513,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,788,146,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                1,802,326,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,778,621,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Land | 
                                                1,182,434,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,182,434,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                35,652,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,802,290,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,740,196,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accumulated depreciation | 
                                                -2,529,047,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,488,722,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other, net | 
                                                273,243,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                251,473,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                45,182,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Investments and other assets | 
                                                288,952,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                292,455,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                50,117,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                42,283,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                2,466,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,717,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                236,368,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                246,455,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                2,136,461,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,121,640,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                5,914,975,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,909,786,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Income taxes payable | 
                                                32,197,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,741,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                138,830,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                149,868,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                895,587,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,035,121,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                125,024,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                108,368,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                7,518,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,135,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                631,739,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                598,534,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                1,527,327,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,633,656,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                468,134,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                468,134,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                388,134,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                388,134,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                3,295,142,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,220,974,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -194,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -194,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                4,151,217,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,077,049,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                18,207,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,960,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                236,430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                199,081,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                4,387,648,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,276,130,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                5,914,975,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,909,786,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |