v3.26.1
Alger Growth & Income Portfolio Investment Objectives and Goals - Class I2 [Member] - Alger Growth & Income Portfolio
Dec. 31, 2025
Prospectus [Line Items]  
Risk/Return [Heading] <span style="color:#262626;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;">Alger Growth & Income Portfolio</span>
Objective [Heading] <span style="color:#0064FA;font-family:Arial;font-size:10pt;font-weight:bold;">Investment Objective</span>
Objective, Primary [Text Block] Alger Growth & Income Portfolio seeks to provide capital appreciation and current income.