v3.26.1
Alger Capital Appreciation Portfolio Annual Fund Operating Expenses - Class S Shares [Member] - Alger Capital Appreciation Portfolio - Class S
Dec. 31, 2025
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.81% [1]
Distribution and Service (12b-1) Fees 0.25%
Other Expenses (as a percentage of Assets): 0.13%
Expenses (as a percentage of Assets) 1.19%
[1] The Portfolio and Fred Alger Management, LLC (the “Manager”) have adopted fee breakpoints for the Portfolio. The advisory fee for assets up to $2 billion is .81%, for assets between $2 billion and $3 billion is .65%, for assets between $3 billion and $4 billion is .60%, for assets between $4 billion and $5 billion is .55%, and for assets in excess of $5 billion is .45%. The actual rate paid as a percentage of average daily net assets for the year ended December 31, 2025 was .81%.