Consolidated Statement Of Income
| Concept | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 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 | 2023-04-01 to 2023-09-30 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of income | ||||||||||
| Statement of income | ||||||||||
| Net sales | 
                                                6,940,628,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,705,300,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,645,929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,571,154,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -74,775,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,708,284,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,087,090,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,726,643,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -68,732,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,795,375,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Ordinary expenses | — | — | — | — | — | — | — | — | — | — | 
| Other operating expenses | — | — | — | — | — | — | — | — | — | — | 
| Share of loss of entities accounted for using equity method | — | — | — | 
                                                13,528,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                18,834,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cost of sales | — | — | — | 
                                                7,371,828,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                7,428,947,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Operating expenses | ||||||||||
| Selling, general and administrative expenses | — | — | — | 
                                                1,336,344,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,182,218,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Operating expenses | ||||||||||
| Other operating expenses | ||||||||||
| Provision for retirement benefits for directors (and other officers) | — | — | — | 
                                                3,226,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,950,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Operating expenses | ||||||||||
| Net sales | ||||||||||
| Gross profit (loss) | — | — | — | 
                                                1,199,326,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,297,695,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Operating profit (loss) | 
                                                117,256,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                51,951,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                169,208,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -137,018,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -306,226,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                292,780,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,771,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                115,477,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -218,075,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                333,552,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Ordinary profit (loss) | — | — | — | 
                                                -87,243,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                98,734,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Non-operating income | ||||||||||
| Interest income | — | — | — | 
                                                5,687,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                6,131,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividend income | — | — | — | 
                                                10,134,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                10,167,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other | — | — | — | 
                                                14,114,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                10,858,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Non-operating income | — | — | — | 
                                                79,846,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                69,474,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cost of sales | ||||||||||
| Extraordinary income | — | — | — | 
                                                37,115,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,412,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Gain on bargain purchase | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,405,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Selling, general and administrative expenses | ||||||||||
| Transportation costs | — | — | — | 
                                                462,108,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                464,589,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Non-operating expenses | — | — | — | 
                                                30,072,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                86,216,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest expenses | — | — | — | 
                                                10,043,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                6,032,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Non-operating expenses | ||||||||||
| Other | — | — | — | 
                                                2,986,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,298,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Extraordinary losses | — | — | — | 
                                                950,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,554,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit (loss) before income taxes | — | — | — | 
                                                -51,078,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                98,592,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Gross profit | ||||||||||
| Extraordinary income | ||||||||||
| Gain on sale of non-current assets | — | — | — | 
                                                929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                6,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Gain on sale of investment securities | — | — | — | 
                                                36,185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes - current | — | — | — | 
                                                51,803,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                34,079,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Extraordinary losses | ||||||||||
| Loss on retirement of non-current assets | — | — | — | 
                                                950,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,554,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes - deferred | — | — | — | 
                                                -37,165,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,450,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes | — | — | — | 
                                                14,638,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                35,529,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit (loss) | — | — | — | 
                                                -65,717,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                63,062,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit (loss) attributable to non-controlling interests | — | — | — | 
                                                370,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                622,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit (loss) attributable to owners of parent | — | — | — | 
                                                -66,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                62,439,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit attributable to | ||||||||||
| Other comprehensive income | ||||||||||
| Valuation difference on available-for-sale securities | — | — | — | 
                                                -81,718,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                66,047,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Deferred gains or losses on hedges | — | — | — | 
                                                -3,970,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,361,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Share of other comprehensive income of entities accounted for using equity method | — | — | — | 
                                                -12,377,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -10,161,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Remeasurements of defined benefit plans, net of tax | — | — | — | 
                                                -7,869,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                924,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other comprehensive income | — | — | — | 
                                                -105,935,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                59,172,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income | — | — | — | 
                                                -171,652,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                122,235,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | — | — | 
                                                -172,023,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                121,612,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to non-controlling interests | — | — | — | 
                                                370,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                622,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — |