Quarter Period Consolidated Statement Of Income
| Concept | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2022-04-01 to 2022-09-30 | 2022-04-01 to 2022-09-30 | 2022-04-01 to 2022-09-30 | 2022-04-01 to 2022-09-30 | 2022-04-01 to 2022-09-30 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Quarter period consolidated statement of income | ||||||||||
| Statement of income | ||||||||||
| Net sales | 
                                                3,992,098,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,042,757,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,042,757,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                49,806,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,715,484,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,715,484,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,665,678,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Cost of sales | — | — | 
                                                2,756,534,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                2,599,323,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Gross profit (loss) | — | — | 
                                                1,286,223,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,116,161,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Selling, general and administrative expenses | ||||||||||
| Selling, general and administrative expenses | — | — | 
                                                880,116,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                868,607,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Operating profit (loss) | 
                                                382,846,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                406,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                406,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,261,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,802,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                247,554,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                247,554,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                225,752,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-operating income | ||||||||||
| Interest income | — | — | 
                                                1,985,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                47,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Dividend income | — | — | 
                                                12,599,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                10,967,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Non-operating income | — | — | 
                                                56,356,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                53,388,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Non-operating expenses | ||||||||||
| Interest expenses | — | — | 
                                                67,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                72,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Non-operating expenses | — | — | 
                                                1,508,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                3,171,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Ordinary profit (loss) | — | — | 
                                                460,955,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                297,771,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Extraordinary losses | ||||||||||
| Extraordinary losses | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                3,044,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit (loss) before income taxes | — | — | 
                                                460,955,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                294,727,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes - current | — | — | 
                                                137,971,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                96,471,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes - deferred | — | — | 
                                                2,105,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -9,226,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes | — | — | 
                                                140,076,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                87,245,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit (loss) | — | — | 
                                                320,879,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                207,482,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit attributable to | ||||||||||
| Profit (loss) attributable to non-controlling interests | — | — | 
                                                5,606,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                7,893,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit (loss) attributable to owners of parent | — | — | 
                                                315,273,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                199,589,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other comprehensive income | ||||||||||
| Valuation difference on available-for-sale securities | — | — | 
                                                101,374,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -994,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other comprehensive income | — | — | 
                                                101,374,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -994,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Comprehensive income | — | — | 
                                                422,253,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                206,488,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | — | 
                                                416,647,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                198,595,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Comprehensive income attributable to non-controlling interests | — | — | 
                                                5,606,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                7,893,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — |