Alger Small Cap Growth Fund Shareholder Fees - Class A B C Shares [Member] - Alger Small Cap Growth Fund |
Oct. 31, 2025 |
|||
|---|---|---|---|---|
| Class A | ||||
| Prospectus [Line Items] | ||||
| Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) | 5.25% | |||
| Maximum Deferred Sales Charge (as a percentage of Offering Price) | 0.00% | [1] | ||
| Class B | ||||
| Prospectus [Line Items] | ||||
| Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) | 0.00% | |||
| Maximum Deferred Sales Charge (as a percentage of Offering Price) | 5.00% | |||
| Class C | ||||
| Prospectus [Line Items] | ||||
| Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) | 0.00% | |||
| Maximum Deferred Sales Charge (as a percentage of Offering Price) | 1.00% | |||
| ||||