Alger International Opportunities Fund Annual Fund Operating Expenses - Class A B C Shares [Member] - Alger International Opportunities Fund |
Oct. 31, 2025 |
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|---|---|---|---|---|---|---|
| Class A | ||||||
| Prospectus [Line Items] | ||||||
| Management Fees (as a percentage of Assets) | 0.71% | [1] | ||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||
| Other Expenses (as a percentage of Assets): | 0.29% | |||||
| Expenses (as a percentage of Assets) | 1.25% | |||||
| Class B | ||||||
| Prospectus [Line Items] | ||||||
| Management Fees (as a percentage of Assets) | 0.71% | [1] | ||||
| Distribution and Service (12b-1) Fees | 1.00% | |||||
| Other Expenses (as a percentage of Assets): | 0.25% | |||||
| Expenses (as a percentage of Assets) | 1.96% | [2] | ||||
| Class C | ||||||
| Prospectus [Line Items] | ||||||
| Management Fees (as a percentage of Assets) | 0.71% | [1] | ||||
| Distribution and Service (12b-1) Fees | 1.00% | |||||
| Other Expenses (as a percentage of Assets): | 0.37% | |||||
| Expenses (as a percentage of Assets) | 2.08% | |||||
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