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Alger International Opportunities Fund Annual Fund Operating Expenses - Class I Shares [Member] - Alger International Opportunities Fund - Class I
Oct. 31, 2025
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): 0.31%
Expenses (as a percentage of Assets) 1.27%
[1] The Fund and Fred Alger Management, LLC (the “Manager”) have adopted fee breakpoints for the Fund. The advisory fee for assets up to $1 billion is .71%, and for assets in excess of $1 billion is .60%. The actual rate paid as a percentage of average daily net assets for the year ended October 31, 2025 was .71%.