Semi-Annual Balance Sheet
| Concept | As at 2024-06-30 | As at 2023-12-31 | 
|---|---|---|
| Semi-annual balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                960,859,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                997,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                320,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                406,446,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -146,529,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -139,833,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                3,108,727,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,401,039,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Property, plant and equipment | 
                                                1,018,164,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                678,317,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Goodwill | 
                                                638,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                355,404,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                648,898,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                359,443,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                10,166,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,038,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                16,061,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,783,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                1,256,479,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,192,028,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                1,607,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,607,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                560,003,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                515,437,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -410,392,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -411,140,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                2,923,542,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,229,790,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred assets | ||
| Deferred assets | 
                                                313,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                313,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                6,032,584,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,631,143,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Accounts payable - trade | 
                                                1,867,685,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,101,661,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Short-term borrowings | 
                                                32,465,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,463,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                18,160,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,602,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                588,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                467,165,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                3,438,621,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,572,952,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts payable - other | 
                                                492,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                545,424,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Non-current liabilities | 
                                                2,025,408,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,766,096,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                909,602,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                970,348,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                72,579,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                78,092,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Asset retirement obligations | 
                                                405,260,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                378,609,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                637,965,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                339,046,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                5,464,030,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,339,048,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Provision for bonuses | 
                                                21,984,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,437,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Net assets | ||
| Share capital | 
                                                355,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                114,844,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | ||
| Capital surplus | ||
| Capital surplus | 
                                                803,820,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                563,148,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | ||
| Retained earnings | 
                                                -544,210,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -350,143,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -7,435,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -7,435,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                607,690,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                320,414,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                316,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,261,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                -64,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -53,130,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                568,553,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                292,094,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share acquisition rights | 
                                                1,663,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                6,032,584,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,631,143,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |