Alger Responsible Investing Fund Annual Total Returns |
12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
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 |
|
| Class Z Shares [Member] | Alger Responsible Investing Fund | Class Z | |||||||||
| Prospectus [Line Items] | |||||||||
| Annual Return [Percent] | 22.49% | 26.24% | 37.23% | (30.52%) | 24.36% | 36.22% | 34.51% | (1.27%) | 27.96% |