Annual Total Returns |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|---|---|---|---|---|---|---|---|---|---|---|
| BNY Mellon Small/Mid Cap Growth Fund | I | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 11.56% | 9.73% | 15.55% | (33.20%) | (4.14%) | 68.49% | 39.15% | (1.58%) | 26.52% | 10.79% |