Alger Global Equity Fund Average Annual Total Returns - Class A C 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 A | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 2.22% | 3.05% | 7.72% | |
| Performance Inception Date | Nov. 03, 2003 | |||
| Class A | After Taxes on Distributions | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 0.16% | 1.46% | 6.31% | |
| Class A | After Taxes on Distributions and Sales | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 2.70% | 2.24% | 5.89% | |
| Class C | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 5.99% | 3.30% | 7.66% | |
| Performance Inception Date | Mar. 03, 2008 |