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 | 
                                                5,337,748,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,863,138,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Securities | 
                                                200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,900,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                949,430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                586,470,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                903,959,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                361,730,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -12,488,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -11,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                19,455,539,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,787,330,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                3,561,314,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,425,771,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Land | 
                                                2,132,298,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,132,298,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,415,997,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,240,330,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accumulated depreciation | 
                                                -927,342,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -916,672,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other, net | 
                                                488,655,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                323,658,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                86,991,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                86,590,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Investments and other assets | 
                                                6,117,530,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,918,399,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                5,633,762,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,388,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                801,756,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                809,595,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -317,989,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -280,003,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                9,765,836,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,430,761,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                29,221,375,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,218,092,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                655,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                855,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                432,278,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                616,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                539,344,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                962,961,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                9,173,763,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,854,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Bonds payable | 
                                                50,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                119,962,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                114,203,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                1,680,034,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,585,141,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                10,853,798,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,439,746,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                1,029,213,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,029,213,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                805,932,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                832,450,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                16,402,711,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,461,166,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -490,681,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,212,239,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                17,747,175,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,110,590,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                554,542,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                618,867,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                620,401,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                667,756,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                18,367,577,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,778,346,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                29,221,375,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,218,092,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |