Quarterly Balance Sheet
| Concept | As at 2023-12-31 | As at 2023-03-31 | 
|---|---|---|
| Quarterly balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                4,510,696,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,189,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Securities | 
                                                1,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,799,974,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                2,920,603,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,699,088,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                772,502,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                713,984,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -2,885,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,090,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                18,954,846,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,333,997,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                4,884,270,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,916,337,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Tools, furniture and fixtures | — | — | 
| Tools, furniture and fixtures, net | 
                                                66,776,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                67,099,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                3,664,070,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,665,033,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Leased assets | — | — | 
| Leased assets, net | 
                                                7,220,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,063,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                46,211,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                331,128,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                419,964,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Other | 
                                                331,128,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                419,964,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                4,741,883,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,520,891,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                4,251,458,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,041,934,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                3,008,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,308,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                307,686,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                292,067,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -15,764,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -16,434,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                9,957,282,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,857,193,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                28,912,129,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,191,190,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                90,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                144,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                436,293,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,062,297,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                917,952,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                8,675,131,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,382,159,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                150,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                4,232,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,887,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                370,514,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                252,556,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                9,045,645,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,634,715,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                565,295,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                565,295,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                376,857,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                376,857,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                18,314,919,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,072,792,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -25,537,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -25,537,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                19,231,533,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,989,407,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                621,875,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                550,014,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                634,949,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                567,067,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                19,866,483,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,556,474,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                28,912,129,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,191,190,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |