Employees
| Concept | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Employees | |||||||||||||
| Metrics related to human capital diversity | |||||||||||||
| Metrics of consolidated subsidiaries | |||||||||||||
| Consolidated subsidiaries | 
                                                ㈱エクスチェンジ
                                                
                                             | 
                                                ㈱MASAYA
                                                
                                             | 
                                                ㈱よどや
                                                
                                             | 
                                                ㈱ププレひまわり
                                                
                                             | 
                                                ウエルシアパートナーズ㈱
                                                
                                             | 
                                                ㈱ふく薬品
                                                
                                             | 
                                                シミズ薬品㈱
                                                
                                             | 
                                                ㈱丸大サクラヰ薬局
                                                
                                             | 
                                                ウエルシア介護サービス㈱
                                                
                                             | 
                                                ㈱ウェルパーク
                                                
                                             | 
                                                ㈱クスリのマルエ
                                                
                                             | 
                                                ウエルシア薬局㈱
                                                
                                             | 
                                                ㈱コクミン
                                                
                                             | 
| Ratio of female employees in managerial positions | 
                                                0.300
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.125
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.212
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.400
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.385
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.146
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.241
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.359
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.154
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.294
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.166
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.216
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Ratio of male employees taking childcare leave | |||||||||||||
| All employees | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.750
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.883
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Regular employees | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.750
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.879
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Non-regular employees | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.000
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Differences in wages between male and female employees | |||||||||||||
| All employees | 
                                                0.794
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.555
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.669
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.628
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.923
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.654
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.777
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.662
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.812
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.759
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.714
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.666
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.689
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Regular employees | 
                                                0.847
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.560
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.797
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.685
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.852
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.653
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.835
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.768
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.892
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.904
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.724
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.732
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.851
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Non-regular employees | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.904
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.984
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.198
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.033
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.004
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.928
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.979
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1.054
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.988
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.978
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.846
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             |