Issued Shares
| Concept | 
                                    
                                        As at 2024-06-27  | 
                            
                                
                                    
                                        As at 2024-06-27  | 
                            
                                
                                    
                                        As at 2024-06-27  | 
                            
                        
|---|---|---|---|
| Issued shares | |||
| Issued shares | |||
| Class | 
                                        
                                             
                                                普通株式
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                A種種類株式
                                                
                                             
                                        
                                     | 
                                
                            
| Number of issued shares as of fiscal year end | 
                                        
                                             
                                                91,401,499
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                91,431,499
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                30,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                            
| Number of issued shares as of filing date | 
                                        
                                             
                                                91,404,499
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                91,434,499
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                30,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                            
| Name of financial instruments exchange on which securities are listed or authorized financial instruments business association to which securities are registered | 
                                        
                                             
                                                東京証券取引所プライム市場
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                非上場
                                                
                                             
                                        
                                     | 
                                
                            
| Description | 
                                        
                                             
                                                単元株式数
100株(注2)
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                単元株式数
1株(注3)
                                                
                                             
                                        
                                     |