Quarterly Consolidated Balance Sheet
| Concept | As at 2023-11-30 | As at 2023-08-31 | 
|---|---|---|
| Quarterly consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                2,312,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,360,692,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Securities | 
                                                400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                271,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                59,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                78,134,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                81,649,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -21,827,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -19,291,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                2,972,865,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,001,462,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                47,341,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,367,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Intangible assets | ||
| Goodwill | 
                                                101,380,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                100,033,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,164,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                103,544,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                102,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                532,143,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                522,271,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                348,528,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                344,568,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                188,728,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                179,930,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -5,113,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,226,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                683,029,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                671,243,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                3,655,895,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,672,705,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Income taxes payable | 
                                                3,996,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,215,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                90,914,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                100,896,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                347,546,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                330,482,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                176,556,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                186,814,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Asset retirement obligations | 
                                                36,523,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,512,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                8,504,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,234,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                221,583,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                230,561,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                569,130,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                561,043,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                648,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                648,999,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                629,981,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                629,981,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                1,804,179,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,834,009,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -100,186,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -100,186,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                2,982,973,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,012,803,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                40,731,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,173,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | 
                                                63,059,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                62,684,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                103,791,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                98,858,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                3,086,765,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,111,661,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                3,655,895,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,672,705,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |