Semi-Annual Consolidated Balance Sheet
| Concept | As at 2023-09-30 | As at 2023-03-31 | 
|---|---|---|
| Semi-annual consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                3,090,008,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,963,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Inventories | 
                                                371,154,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                389,571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                125,843,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                90,331,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -2,857,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,921,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                8,018,655,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,866,756,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                3,200,001,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,212,970,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Buildings and structures | — | — | 
| Buildings and structures, net | 
                                                507,887,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                421,527,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Machinery, equipment and vehicles | — | — | 
| Machinery, equipment and vehicles, net | 
                                                122,540,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                169,057,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                2,313,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,302,242,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Leased assets | — | — | 
| Leased assets, net | 
                                                221,726,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                212,279,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                72,600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                34,056,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,264,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                196,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                209,471,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                2,990,499,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,831,636,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                1,605,283,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,395,010,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                211,188,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                274,182,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,174,038,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,162,458,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -3,356,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,481,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                6,387,339,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,254,078,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                14,405,994,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,120,835,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                747,710,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                728,480,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                144,980,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                214,154,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                587,391,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                530,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                3,317,183,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,410,717,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                1,049,575,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                922,795,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retirement benefit liability | 
                                                641,074,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                643,646,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                358,249,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                325,658,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                2,279,202,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,122,403,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                5,596,386,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,533,120,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                292,153,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                304,133,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax liabilities for land revaluation | 
                                                161,263,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                161,263,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Share capital | 
                                                856,050,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                856,050,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | ||
| Capital surplus | 
                                                616,957,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                612,680,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                6,773,828,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,666,729,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -359,792,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -367,814,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                7,887,043,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,767,645,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                343,987,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                232,121,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Revaluation reserve for land | 
                                                56,288,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                56,288,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | 
                                                100,018,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                74,054,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Remeasurements of defined benefit plans | 
                                                266,230,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                285,120,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                766,524,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                647,584,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-controlling interests | 
                                                156,040,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                172,484,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                8,809,608,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,587,714,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                14,405,994,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,120,835,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |