Alger Global Equity Fund Average Annual Total Returns - Class Z 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 Z | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 8.14% | 4.59% | 8.77% | |
| Performance Inception Date | May 31, 2013 | |||
| Class Z | After Taxes on Distributions | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 6.07% | 3.04% | 7.31% | |
| Class Z | After Taxes on Distributions and Sales | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 6.21% | 3.45% | 6.73% |