Alger Global Equity Fund Average Annual Total Returns - Class I Shares [Member] |
12 Months Ended | 60 Months Ended | 120 Months Ended | |
|---|---|---|---|---|
Oct. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| MSCI ACWI Gross Index (reflects no deductions for fees, expenses or taxes)[Member] | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 22.87% | 11.70% | 12.28% | |
| Class I | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 7.95% | 4.33% | 8.55% | |
| Performance Inception Date | May 31, 2013 | |||
| Class I | After Taxes on Distributions | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 5.71% | 2.67% | 6.88% | |
| Class I | After Taxes on Distributions and Sales | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 6.21% | 3.24% | 6.44% |