Year To Quarter End Consolidated Statement Of Comprehensive Income
| Concept | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|
| Year to quarter end consolidated statement of comprehensive income | ||||||||
| Statement of comprehensive income | ||||||||
| Profit (loss) | 
                                                435,712,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                704,543,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                435,712,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                435,712,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                149,505,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                149,505,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                149,505,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                420,591,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||
| Valuation difference on available-for-sale securities | — | 
                                                81,304,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                84,232,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | — | 
                                                100,839,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                78,539,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Remeasurements of defined benefit plans, net of tax | — | 
                                                58,245,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                11,362,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | — | 
                                                240,390,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                174,134,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income | — | 
                                                944,933,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                594,726,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income attributable to | ||||||||
| Comprehensive income attributable to owners of parent | — | 
                                                944,933,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                594,726,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |