Quarterly Balance Sheet
| Concept | As at 2024-09-30 | As at 2024-03-31 | 
|---|---|---|
| Quarterly balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                3,134,244,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,911,543,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                1,142,410,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,218,248,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                515,540,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                536,769,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                769,084,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                806,025,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                121,339,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                192,406,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -3,051,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,703,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                8,567,176,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,852,611,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                7,975,321,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,078,551,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Land | 
                                                4,954,762,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,954,762,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                1,227,874,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,282,198,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                444,648,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                326,559,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Goodwill | 
                                                105,066,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                115,961,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                339,582,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                210,597,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                817,671,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                839,410,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Other | 
                                                827,785,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                849,064,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -10,114,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -9,654,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                9,237,642,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,244,520,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                17,804,818,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,097,132,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Notes and accounts payable - trade | 
                                                1,395,268,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,444,006,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Short-term borrowings | 
                                                995,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,077,256,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                87,595,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                99,549,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                594,435,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                708,743,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                3,160,044,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,447,402,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                854,995,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                700,392,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Asset retirement obligations | 
                                                98,520,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,995,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                971,284,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,156,677,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                2,545,179,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,560,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                5,705,223,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,008,153,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                90,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                90,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                6,433,020,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,433,020,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                3,780,712,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,824,215,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -478,702,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -478,702,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                9,825,031,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,868,534,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                54,320,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                62,045,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Revaluation reserve for land | 
                                                1,429,321,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,429,321,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                1,682,102,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,632,663,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                12,099,595,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,088,978,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                17,804,818,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,097,132,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |