Alger Emerging Markets Fund Expense Example - Class A C Shares [Member] - Alger Emerging Markets Fund |
Oct. 31, 2025
USD ($)
|
|---|---|
| Class A | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 674 |
| Expense Example, with Redemption, 3 Years | 1,056 |
| Expense Example, with Redemption, 5 Years | 1,496 |
| Expense Example, with Redemption, 10 Years | 2,715 |
| Class C | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 333 |
| Expense Example, with Redemption, 3 Years | 795 |
| Expense Example, with Redemption, 5 Years | 1,421 |
| Expense Example, with Redemption, 10 Years | $ 3,108 |