Semi-Annual Consolidated Balance Sheet
| Concept | As at 2020-12-31 | As at 2020-09-30 | 
|---|---|---|
| Semi-annual consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                715,371,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                945,134,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                54,110,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                47,893,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -71,824,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -71,837,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                1,250,318,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,478,635,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                166,514,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                167,355,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Land | 
                                                112,944,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                112,944,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                53,570,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                54,411,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Other | 
                                                4,270,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,510,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                75,273,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                78,588,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                303,871,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                348,758,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Long-term loans receivable | 
                                                151,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                153,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                47,106,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                47,434,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -81,953,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -81,953,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                545,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                594,702,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                1,795,977,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,073,338,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                50,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                4,741,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,480,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                57,424,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                133,956,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                188,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                285,485,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                66,035,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                73,910,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                70,329,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                78,464,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                258,703,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                363,949,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Share capital | 
                                                1,992,531,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,992,531,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | ||
| Capital surplus | 
                                                605,197,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                605,197,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                -948,505,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -777,021,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -111,949,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -111,949,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                1,537,274,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,708,758,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share acquisition rights | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                630,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                1,537,274,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,709,388,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                1,795,977,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,073,338,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |