Consolidated Statement Of Income
| Concept | 2024-01-01 to 2024-03-31 | 2023-01-01 to 2023-03-31 | 
|---|---|---|
| Consolidated statement of income | ||
| Statement of income | ||
| Net sales | 
                                                6,527,022,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,643,127,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating expenses | ||
| Selling, general and administrative expenses | 
                                                3,607,106,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,325,644,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating expenses | ||
| Cost of sales | 
                                                2,141,963,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,020,351,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating profit (loss) | 
                                                777,952,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                297,131,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net sales | ||
| Gross profit (loss) | 
                                                4,385,059,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,622,776,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Ordinary profit (loss) | 
                                                793,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                313,940,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-operating income | 
                                                24,806,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Dividend income | 
                                                932,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                660,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Interest income | 
                                                1,623,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,632,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Cost of sales | ||
| Selling, general and administrative expenses | ||
| Non-operating income | ||
| Other | 
                                                3,692,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,871,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-operating expenses | ||
| Interest expenses | 
                                                111,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                3,624,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,072,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-operating expenses | 
                                                9,243,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,299,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Extraordinary losses | 
                                                366,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,285,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) before income taxes | 
                                                793,149,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                312,654,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Gross profit | ||
| Income taxes - current | 
                                                299,287,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                155,055,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Extraordinary losses | ||
| Income taxes - deferred | 
                                                -33,449,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -30,508,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes | 
                                                265,837,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                124,546,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) | 
                                                527,311,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                188,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) attributable to owners of parent | 
                                                527,311,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                188,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit attributable to | ||
| Other comprehensive income | ||
| Valuation difference on available-for-sale securities | 
                                                9,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,718,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | 
                                                9,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,718,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income | 
                                                536,419,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                189,826,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income attributable to | ||
| Comprehensive income attributable to owners of parent | 
                                                536,419,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                189,826,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |