Shareholdings
| Concept | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 
|---|---|---|---|---|---|---|---|---|---|
| Shareholdings | |||||||||
| Largest holding company | |||||||||
| Investment shares reclassified from held for purposes other than pure investment to held for pure investment | |||||||||
| Issue | 
                                                株式会社めぶきフィナンシャルグループ
                                                
                                             | 
                                                株式会社百五銀行
                                                
                                             | 
                                                株式会社京都フィナンシャルグループ
                                                
                                             | 
                                                マクニカホールディングス株式会社
                                                
                                             | 
                                                株式会社清水銀行
                                                
                                             | 
                                                株式会社山形銀行
                                                
                                             | 
                                                株式会社プロクレアホールディングス
                                                
                                             | 
                                                株式会社佐賀銀行
                                                
                                             | 
                                                株式会社阿波銀行
                                                
                                             | 
| Number of shares | 
                                                500,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                558,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                1,328,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                355,467
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                79,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                93,200
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                33,061
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                133,200
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                111,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Carrying amount | 
                                                255,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                362,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,666,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,640,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                127,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                109,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                61,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                284,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                305,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |