Consolidated Statement Of Income
| Concept | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of income | ||||||||||||||||||||||||
| Statement of income | ||||||||||||||||||||||||
| Net sales | 
                                                5,059,763,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,059,763,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,946,996,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,117,363,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,941,571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,000,829,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,818,253,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,818,253,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                953,272,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,758,414,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,106,565,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,855,714,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Ordinary income | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Other operating income | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Share of profit of entities accounted for using equity method | — | — | 
                                                257,682,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                97,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
| Cost of sales | — | — | 
                                                3,738,613,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,891,257,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                3,608,121,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                2,858,175,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating expenses | ||||||||||||||||||||||||
| Selling, general and administrative expenses | — | — | 
                                                1,159,378,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                921,485,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,144,370,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                941,548,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Depreciation | — | — | 
                                                40,760,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                38,286,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                53,520,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                41,422,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision of allowance for doubtful accounts | — | — | 
                                                -383,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -187,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -1,506,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                -1,522,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating expenses | ||||||||||||||||||||||||
| Other operating expenses | ||||||||||||||||||||||||
| Operating expenses | ||||||||||||||||||||||||
| Operating expenses | ||||||||||||||||||||||||
| Operating expenses - general | ||||||||||||||||||||||||
| Rent expenses on land and buildings | — | — | 
                                                149,284,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                135,986,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                148,869,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                137,688,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating profit (loss) | — | — | 
                                                161,771,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                134,253,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                65,761,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                55,991,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Ordinary profit (loss) | 
                                                841,782,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                425,896,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -415,886,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                135,006,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                315,376,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                250,835,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                275,571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                216,976,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                553,589,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -336,612,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                135,961,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                245,300,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                172,327,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                56,793,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Gross profit (loss) | — | — | 
                                                1,321,149,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,055,738,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,210,131,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                997,539,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating expenses | ||||||||||||||||||||||||
| General and administrative expenses | ||||||||||||||||||||||||
| Net sales | ||||||||||||||||||||||||
| Cost of sales | ||||||||||||||||||||||||
| Non-operating income | ||||||||||||||||||||||||
| Interest income | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                11,193,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                11,193,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,067,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,353,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,353,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                431,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
                                                1,198,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,136,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,532,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                673,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-operating income | — | — | 
                                                278,873,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,995,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                151,215,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                4,076,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Extraordinary income | — | — | 
                                                351,150,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                280,971,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                254,942,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                254,942,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Selling, general and administrative expenses | ||||||||||||||||||||||||
| Extraordinary losses | — | — | 
                                                490,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                135,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                273,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                162,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-operating expenses | ||||||||||||||||||||||||
| Interest expenses | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,922,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,922,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other | — | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                635,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-operating expenses | — | — | 
                                                14,748,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,241,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                3,274,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) before income taxes | — | — | 
                                                776,556,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                415,842,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                471,645,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                311,573,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Gross profit | ||||||||||||||||||||||||
| Extraordinary income | ||||||||||||||||||||||||
| Gain on sale of non-current assets | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                4,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                4,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Gain on sale of investment securities | — | — | 
                                                280,971,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                280,971,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                254,938,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                254,938,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes - current | — | — | 
                                                165,126,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                130,122,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                89,163,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                73,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Extraordinary losses | ||||||||||||||||||||||||
| Loss on retirement of non-current assets | — | — | 
                                                490,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                135,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                273,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                162,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes - deferred | — | — | 
                                                -15,098,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -17,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                23,235,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                23,850,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes | — | — | 
                                                150,028,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                113,035,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                112,398,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                97,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) | — | — | 
                                                626,528,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                302,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                302,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                302,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                302,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                359,247,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                213,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                213,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                213,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                213,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) attributable to owners of parent | — | 
                                                626,528,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                626,528,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                626,528,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                359,247,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                359,247,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                359,247,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
| Other comprehensive income | ||||||||||||||||||||||||
| Valuation difference on available-for-sale securities | — | — | 
                                                -114,420,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -808,176,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
| Deferred gains or losses on hedges | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                717,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
| Foreign currency translation adjustment | — | — | 
                                                28,893,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                82,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
| Share of other comprehensive income of entities accounted for using equity method | — | — | 
                                                22,200,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -2,901,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
| Other comprehensive income | — | — | 
                                                -63,326,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -727,711,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
| Profit attributable to | ||||||||||||||||||||||||
| Comprehensive income | — | — | 
                                                563,201,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -368,464,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
| Comprehensive income attributable to | ||||||||||||||||||||||||
| Comprehensive income attributable to owners of parent | — | — | 
                                                563,201,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -368,464,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
| Comprehensive income attributable to non-controlling interests | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
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                                                        JPY
                                                    
                                                
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