Alger AI Enablers & Adopters Average Annual Total Returns - Class I Shares [Member] |
12 Months Ended | 21 Months Ended | 60 Months Ended | 79 Months Ended | 120 Months Ended | |
|---|---|---|---|---|---|---|
Oct. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| S&P 500 Index (reflects no deductions for fees, expenses or taxes)[Member] | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 17.88% | 19.32% | 14.42% | 15.89% | 14.82% | |
| Class I | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 40.73% | 43.12% | ||||
| Performance Inception Date | Apr. 04, 2024 | |||||
| Class I | After Taxes on Distributions | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 37.40% | 40.49% | ||||
| Class I | After Taxes on Distributions and Sales | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 24.26% | 32.64% |