Semi-Annual Balance Sheet
| Concept | As at 2024-09-30 | As at 2024-03-31 | 
|---|---|---|
| Semi-annual balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                356,797,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                324,964,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                13,147,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,242,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -566,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -553,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                605,688,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                603,563,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - other | 
                                                35,860,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,167,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Property, plant and equipment | 
                                                85,787,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                84,411,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                25,009,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,862,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Leased assets | 
                                                2,818,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,055,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                6,430,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,392,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accumulated depreciation | 
                                                -109,360,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -106,505,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                13,614,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,328,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Software | 
                                                13,382,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,060,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                231,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                268,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                66,258,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                56,073,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                99,834,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                90,993,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term loans receivable | 
                                                11,967,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,869,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                25,156,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,834,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                19,014,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,985,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -24,107,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -24,369,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                199,236,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                188,733,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                804,925,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                792,296,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                254,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,817,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                11,234,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,480,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                46,626,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                39,719,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                366,990,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                350,736,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Non-current liabilities | 
                                                42,856,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                53,674,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Bonds payable | 
                                                10,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                13,677,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,717,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,714,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,163,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                409,847,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                404,410,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Provision for retirement benefits for directors (and other officers) | 
                                                1,117,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,059,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                9,178,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,281,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax liabilities | 
                                                2,186,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,231,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax liabilities for land revaluation | 
                                                1,014,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,014,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Provision for bonuses for directors (and other officers) | 
                                                97,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                209,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                23,885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,798,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | ||
| Capital surplus | 
                                                25,465,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,378,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | ||
| Retained earnings | 
                                                353,621,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                350,511,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -25,486,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -25,485,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                377,486,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                374,202,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                14,847,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,410,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred gains or losses on hedges | 
                                                -1,938,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,072,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Revaluation reserve for land | 
                                                -10,891,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -10,891,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                16,038,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,952,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                395,077,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                387,885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                804,925,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                792,296,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |