110001 - Disclosure - Alger Capital Appreciation Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 110002 - Disclosure - Alger Capital Appreciation Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 110003 - Disclosure - Alger Capital Appreciation Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 110004 - Disclosure - Alger Capital Appreciation Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 110005 - Disclosure - Alger Capital Appreciation Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 120010 - Disclosure - Alger Capital Appreciation Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 120020 - Disclosure - Alger Capital Appreciation Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 120030 - Disclosure - Alger Capital Appreciation Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 120040 - Disclosure - Alger Capital Appreciation Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 120045 - Disclosure - Alger Capital Appreciation Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 120050 - Disclosure - Alger Capital Appreciation Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 120060 - Disclosure - Alger Capital Appreciation Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 120070 - Disclosure - Alger Capital Appreciation Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 110000 - Disclosure - Alger Capital Appreciation Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 210001 - Disclosure - Alger Concentrated Equity Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 210002 - Disclosure - Alger Concentrated Equity Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 210003 - Disclosure - Alger Concentrated Equity Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 210004 - Disclosure - Alger Concentrated Equity Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 210005 - Disclosure - Alger Concentrated Equity Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 220010 - Disclosure - Alger Concentrated Equity Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 220020 - Disclosure - Alger Concentrated Equity Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 220030 - Disclosure - Alger Concentrated Equity Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 220040 - Disclosure - Alger Concentrated Equity Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 220045 - Disclosure - Alger Concentrated Equity Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 220050 - Disclosure - Alger Concentrated Equity Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 220060 - Disclosure - Alger Concentrated Equity Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 220070 - Disclosure - Alger Concentrated Equity Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 210000 - Disclosure - Alger Concentrated Equity Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 310001 - Disclosure - Alger International Opportunities Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 310002 - Disclosure - Alger International Opportunities Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 310003 - Disclosure - Alger International Opportunities Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 310004 - Disclosure - Alger International Opportunities Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 310005 - Disclosure - Alger International Opportunities Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 320010 - Disclosure - Alger International Opportunities Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 320020 - Disclosure - Alger International Opportunities Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 320030 - Disclosure - Alger International Opportunities Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 320040 - Disclosure - Alger International Opportunities Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 320045 - Disclosure - Alger International Opportunities Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 320050 - Disclosure - Alger International Opportunities Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 320060 - Disclosure - Alger International Opportunities Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 320070 - Disclosure - Alger International Opportunities Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 310000 - Disclosure - Alger International Opportunities Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 410001 - Disclosure - Alger Mid Cap Focus Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 410002 - Disclosure - Alger Mid Cap Focus Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 410003 - Disclosure - Alger Mid Cap Focus Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 410004 - Disclosure - Alger Mid Cap Focus Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 410005 - Disclosure - Alger Mid Cap Focus Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 420010 - Disclosure - Alger Mid Cap Focus Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 420020 - Disclosure - Alger Mid Cap Focus Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 420030 - Disclosure - Alger Mid Cap Focus Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 420040 - Disclosure - Alger Mid Cap Focus Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 420045 - Disclosure - Alger Mid Cap Focus Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 420050 - Disclosure - Alger Mid Cap Focus Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 420060 - Disclosure - Alger Mid Cap Focus Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 420070 - Disclosure - Alger Mid Cap Focus Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 410000 - Disclosure - Alger Mid Cap Focus Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 510001 - Disclosure - Alger Mid Cap Growth Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 510002 - Disclosure - Alger Mid Cap Growth Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 510003 - Disclosure - Alger Mid Cap Growth Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 510004 - Disclosure - Alger Mid Cap Growth Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 510005 - Disclosure - Alger Mid Cap Growth Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 520010 - Disclosure - Alger Mid Cap Growth Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 520020 - Disclosure - Alger Mid Cap Growth Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 520030 - Disclosure - Alger Mid Cap Growth Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 520040 - Disclosure - Alger Mid Cap Growth Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 520045 - Disclosure - Alger Mid Cap Growth Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 520050 - Disclosure - Alger Mid Cap Growth Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 520060 - Disclosure - Alger Mid Cap Growth Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 520070 - Disclosure - Alger Mid Cap Growth Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 510000 - Disclosure - Alger Mid Cap Growth Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 610001 - Disclosure - Alger Weatherbie Specialized Growth Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 610002 - Disclosure - Alger Weatherbie Specialized Growth Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 610003 - Disclosure - Alger Weatherbie Specialized Growth Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 610004 - Disclosure - Alger Weatherbie Specialized Growth Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 610005 - Disclosure - Alger Weatherbie Specialized Growth Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 620010 - Disclosure - Alger Weatherbie Specialized Growth Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 620020 - Disclosure - Alger Weatherbie Specialized Growth Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 620030 - Disclosure - Alger Weatherbie Specialized Growth Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 620040 - Disclosure - Alger Weatherbie Specialized Growth Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 620045 - Disclosure - Alger Weatherbie Specialized Growth Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 620050 - Disclosure - Alger Weatherbie Specialized Growth Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 620060 - Disclosure - Alger Weatherbie Specialized Growth Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 620070 - Disclosure - Alger Weatherbie Specialized Growth Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 610000 - Disclosure - Alger Weatherbie Specialized Growth Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 710001 - Disclosure - Alger Small Cap Growth Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 710002 - Disclosure - Alger Small Cap Growth Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 710003 - Disclosure - Alger Small Cap Growth Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 710004 - Disclosure - Alger Small Cap Growth Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 710005 - Disclosure - Alger Small Cap Growth Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 720010 - Disclosure - Alger Small Cap Growth Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 720020 - Disclosure - Alger Small Cap Growth Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 720030 - Disclosure - Alger Small Cap Growth Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 720040 - Disclosure - Alger Small Cap Growth Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 720045 - Disclosure - Alger Small Cap Growth Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 720050 - Disclosure - Alger Small Cap Growth Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 720060 - Disclosure - Alger Small Cap Growth Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 720070 - Disclosure - Alger Small Cap Growth Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 710000 - Disclosure - Alger Small Cap Growth Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 810001 - Disclosure - Alger Small Cap Focus Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 810002 - Disclosure - Alger Small Cap Focus Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 810003 - Disclosure - Alger Small Cap Focus Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 810004 - Disclosure - Alger Small Cap Focus Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 810005 - Disclosure - Alger Small Cap Focus Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 820010 - Disclosure - Alger Small Cap Focus Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 820020 - Disclosure - Alger Small Cap Focus Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 820030 - Disclosure - Alger Small Cap Focus Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 820040 - Disclosure - Alger Small Cap Focus Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 820045 - Disclosure - Alger Small Cap Focus Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 820050 - Disclosure - Alger Small Cap Focus Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 820060 - Disclosure - Alger Small Cap Focus Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 820070 - Disclosure - Alger Small Cap Focus Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 810000 - Disclosure - Alger Small Cap Focus Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 910001 - Disclosure - Alger International Small Cap Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 910002 - Disclosure - Alger International Small Cap Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 910003 - Disclosure - Alger International Small Cap Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 910004 - Disclosure - Alger International Small Cap Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 910005 - Disclosure - Alger International Small Cap Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 920010 - Disclosure - Alger International Small Cap Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 920020 - Disclosure - Alger International Small Cap Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 920030 - Disclosure - Alger International Small Cap Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 920040 - Disclosure - Alger International Small Cap Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 920045 - Disclosure - Alger International Small Cap Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 920050 - Disclosure - Alger International Small Cap Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 920060 - Disclosure - Alger International Small Cap Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 920070 - Disclosure - Alger International Small Cap Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 910000 - Disclosure - Alger International Small Cap Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1010001 - Disclosure - Alger Health Sciences Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1010002 - Disclosure - Alger Health Sciences Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1010003 - Disclosure - Alger Health Sciences Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1010004 - Disclosure - Alger Health Sciences Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 1010005 - Disclosure - Alger Health Sciences Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 1020010 - Disclosure - Alger Health Sciences Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1020020 - Disclosure - Alger Health Sciences Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1020030 - Disclosure - Alger Health Sciences Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 1020040 - Disclosure - Alger Health Sciences Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1020045 - Disclosure - Alger Health Sciences Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 1020050 - Disclosure - Alger Health Sciences Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1020060 - Disclosure - Alger Health Sciences Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1020070 - Disclosure - Alger Health Sciences Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1010000 - Disclosure - Alger Health Sciences Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1110001 - Disclosure - Alger Growth and Income Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1110002 - Disclosure - Alger Growth and Income Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1110003 - Disclosure - Alger Growth and Income Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1110004 - Disclosure - Alger Growth and Income Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 1110005 - Disclosure - Alger Growth and Income Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 1120010 - Disclosure - Alger Growth and Income Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1120020 - Disclosure - Alger Growth and Income Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1120030 - Disclosure - Alger Growth and Income Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 1120040 - Disclosure - Alger Growth and Income Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1120045 - Disclosure - Alger Growth and Income Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 1120050 - Disclosure - Alger Growth and Income Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1120060 - Disclosure - Alger Growth and Income Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1120070 - Disclosure - Alger Growth and Income Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1110000 - Disclosure - Alger Growth and Income Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1210001 - Disclosure - Alger AI Enablers & Adopters Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1210002 - Disclosure - Alger AI Enablers & Adopters Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1210003 - Disclosure - Alger AI Enablers & Adopters Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1210004 - Disclosure - Alger AI Enablers & Adopters Investment Risks link:presentationLink link:definitionLink link:calculationLink 1210005 - Disclosure - Alger AI Enablers & Adopters Performance Management link:presentationLink link:definitionLink link:calculationLink 1220010 - Disclosure - Alger AI Enablers & Adopters Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1220020 - Disclosure - Alger AI Enablers & Adopters Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1220030 - Disclosure - Alger AI Enablers & Adopters Expense Example link:presentationLink link:definitionLink link:calculationLink 1220040 - Disclosure - Alger AI Enablers & Adopters Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1220045 - Disclosure - Alger AI Enablers & Adopters Risks Data link:presentationLink link:definitionLink link:calculationLink 1220050 - Disclosure - Alger AI Enablers & Adopters Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1220060 - Disclosure - Alger AI Enablers & Adopters Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1220070 - Disclosure - Alger AI Enablers & Adopters Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1210000 - Disclosure - Alger AI Enablers & Adopters N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1310001 - Disclosure - Alger Capital Appreciation Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1310002 - Disclosure - Alger Capital Appreciation Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1310003 - Disclosure - Alger Capital Appreciation Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1310004 - Disclosure - Alger Capital Appreciation Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 1310005 - Disclosure - Alger Capital Appreciation Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 1320010 - Disclosure - Alger Capital Appreciation Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1320020 - Disclosure - Alger Capital Appreciation Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1320030 - Disclosure - Alger Capital Appreciation Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 1320040 - Disclosure - Alger Capital Appreciation Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1320045 - Disclosure - Alger Capital Appreciation Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 1320050 - Disclosure - Alger Capital Appreciation Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1320060 - Disclosure - Alger Capital Appreciation Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1320070 - Disclosure - Alger Capital Appreciation Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1310000 - Disclosure - Alger Capital Appreciation Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1410001 - Disclosure - Alger Concentrated Equity Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1410002 - Disclosure - Alger Concentrated Equity Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1410003 - Disclosure - Alger Concentrated Equity Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1410004 - Disclosure - Alger Concentrated Equity Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 1410005 - Disclosure - Alger Concentrated Equity Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 1420010 - Disclosure - Alger Concentrated Equity Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1420020 - Disclosure - Alger Concentrated Equity Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1420030 - Disclosure - Alger Concentrated Equity Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 1420040 - Disclosure - Alger Concentrated Equity Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1420045 - Disclosure - Alger Concentrated Equity Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 1420050 - Disclosure - Alger Concentrated Equity Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1420060 - Disclosure - Alger Concentrated Equity Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1420070 - Disclosure - Alger Concentrated Equity Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1410000 - Disclosure - Alger Concentrated Equity Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1510001 - Disclosure - Alger Concentrated Equity Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1510002 - Disclosure - Alger Concentrated Equity Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1510003 - Disclosure - Alger Concentrated Equity Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1510004 - Disclosure - Alger Concentrated Equity Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 1510005 - Disclosure - Alger Concentrated Equity Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 1520010 - Disclosure - Alger Concentrated Equity Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1520020 - Disclosure - Alger Concentrated Equity Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1520030 - Disclosure - Alger Concentrated Equity Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 1520040 - Disclosure - Alger Concentrated Equity Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1520045 - Disclosure - Alger Concentrated Equity Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 1520050 - Disclosure - Alger Concentrated Equity Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1520060 - Disclosure - Alger Concentrated Equity Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1520070 - Disclosure - Alger Concentrated Equity Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1510000 - Disclosure - Alger Concentrated Equity Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1610001 - Disclosure - Alger Concentrated Equity Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1610002 - Disclosure - Alger Concentrated Equity Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1610003 - Disclosure - Alger Concentrated Equity Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1610004 - Disclosure - Alger Concentrated Equity Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 1610005 - Disclosure - Alger Concentrated Equity Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 1620010 - Disclosure - Alger Concentrated Equity Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1620020 - Disclosure - Alger Concentrated Equity Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1620030 - Disclosure - Alger Concentrated Equity Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 1620040 - Disclosure - Alger Concentrated Equity Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1620045 - Disclosure - Alger Concentrated Equity Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 1620050 - Disclosure - Alger Concentrated Equity Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1620060 - Disclosure - Alger Concentrated Equity Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1620070 - Disclosure - Alger Concentrated Equity Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1610000 - Disclosure - Alger Concentrated Equity Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1710001 - Disclosure - Alger International Opportunities Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1710002 - Disclosure - Alger International Opportunities Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1710003 - Disclosure - Alger International Opportunities Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1710004 - Disclosure - Alger International Opportunities Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 1710005 - Disclosure - Alger International Opportunities Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 1720010 - Disclosure - Alger International Opportunities Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1720020 - Disclosure - Alger International Opportunities Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1720030 - Disclosure - Alger International Opportunities Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 1720040 - Disclosure - Alger International Opportunities Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1720045 - Disclosure - Alger International Opportunities Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 1720050 - Disclosure - Alger International Opportunities Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1720060 - Disclosure - Alger International Opportunities Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1720070 - Disclosure - Alger International Opportunities Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1710000 - Disclosure - Alger International Opportunities Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1810001 - Disclosure - Alger International Opportunities Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1810002 - Disclosure - Alger International Opportunities Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1810003 - Disclosure - Alger International Opportunities Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1810004 - Disclosure - Alger International Opportunities Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 1810005 - Disclosure - Alger International Opportunities Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 1820010 - Disclosure - Alger International Opportunities Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1820020 - Disclosure - Alger International Opportunities Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1820030 - Disclosure - Alger International Opportunities Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 1820040 - Disclosure - Alger International Opportunities Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1820045 - Disclosure - Alger International Opportunities Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 1820050 - Disclosure - Alger International Opportunities Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1820060 - Disclosure - Alger International Opportunities Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1820070 - Disclosure - Alger International Opportunities Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1810000 - Disclosure - Alger International Opportunities Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1910001 - Disclosure - Alger Mid Cap Focus Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1910002 - Disclosure - Alger Mid Cap Focus Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1910003 - Disclosure - Alger Mid Cap Focus Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1910004 - Disclosure - Alger Mid Cap Focus Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 1910005 - Disclosure - Alger Mid Cap Focus Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 1920010 - Disclosure - Alger Mid Cap Focus Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1920020 - Disclosure - Alger Mid Cap Focus Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1920030 - Disclosure - Alger Mid Cap Focus Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 1920040 - Disclosure - Alger Mid Cap Focus Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1920045 - Disclosure - Alger Mid Cap Focus Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 1920050 - Disclosure - Alger Mid Cap Focus Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1920060 - Disclosure - Alger Mid Cap Focus Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1920070 - Disclosure - Alger Mid Cap Focus Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1910000 - Disclosure - Alger Mid Cap Focus Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 2010001 - Disclosure - Alger Mid Cap Focus Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 2010002 - Disclosure - Alger Mid Cap Focus Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 2010003 - Disclosure - Alger Mid Cap Focus Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 2010004 - Disclosure - Alger Mid Cap Focus Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 2010005 - Disclosure - Alger Mid Cap Focus Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 2020010 - Disclosure - Alger Mid Cap Focus Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 2020020 - Disclosure - Alger Mid Cap Focus Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 2020030 - Disclosure - Alger Mid Cap Focus Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 2020040 - Disclosure - Alger Mid Cap Focus Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 2020045 - Disclosure - Alger Mid Cap Focus Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 2020050 - Disclosure - Alger Mid Cap Focus Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2020060 - Disclosure - Alger Mid Cap Focus Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2020070 - Disclosure - Alger Mid Cap Focus Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 2010000 - Disclosure - Alger Mid Cap Focus Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 2110001 - Disclosure - Alger Mid Cap Focus Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 2110002 - Disclosure - Alger Mid Cap Focus Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 2110003 - Disclosure - Alger Mid Cap Focus Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 2110004 - Disclosure - Alger Mid Cap Focus Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 2110005 - Disclosure - Alger Mid Cap Focus Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 2120010 - Disclosure - Alger Mid Cap Focus Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 2120020 - Disclosure - Alger Mid Cap Focus Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 2120030 - Disclosure - Alger Mid Cap Focus Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 2120040 - Disclosure - Alger Mid Cap Focus Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 2120045 - Disclosure - Alger Mid Cap Focus Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 2120050 - Disclosure - Alger Mid Cap Focus Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2120060 - Disclosure - Alger Mid Cap Focus Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2120070 - Disclosure - Alger Mid Cap Focus Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 2110000 - Disclosure - Alger Mid Cap Focus Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 2210001 - Disclosure - Alger Mid Cap Growth Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 2210002 - Disclosure - Alger Mid Cap Growth Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 2210003 - Disclosure - Alger Mid Cap Growth Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 2210004 - Disclosure - Alger Mid Cap Growth Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 2210005 - Disclosure - Alger Mid Cap Growth Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 2220010 - Disclosure - Alger Mid Cap Growth Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 2220020 - Disclosure - Alger Mid Cap Growth Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 2220030 - Disclosure - Alger Mid Cap Growth Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 2220040 - Disclosure - Alger Mid Cap Growth Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 2220045 - Disclosure - Alger Mid Cap Growth Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 2220050 - Disclosure - Alger Mid Cap Growth Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2220060 - Disclosure - Alger Mid Cap Growth Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2220070 - Disclosure - Alger Mid Cap Growth Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 2210000 - Disclosure - Alger Mid Cap Growth Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 2310001 - Disclosure - Alger Weatherbie Specialized Growth Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 2310002 - Disclosure - Alger Weatherbie Specialized Growth Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 2310003 - Disclosure - Alger Weatherbie Specialized Growth Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 2310004 - Disclosure - Alger Weatherbie Specialized Growth Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 2310005 - Disclosure - Alger Weatherbie Specialized Growth Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 2320010 - Disclosure - Alger Weatherbie Specialized Growth Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 2320020 - Disclosure - Alger Weatherbie Specialized Growth Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 2320030 - Disclosure - Alger Weatherbie Specialized Growth Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 2320040 - Disclosure - Alger Weatherbie Specialized Growth Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 2320045 - Disclosure - Alger Weatherbie Specialized Growth Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 2320050 - Disclosure - Alger Weatherbie Specialized Growth Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2320060 - Disclosure - Alger Weatherbie Specialized Growth Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2320070 - Disclosure - Alger Weatherbie Specialized Growth Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 2310000 - Disclosure - Alger Weatherbie Specialized Growth Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 2410001 - Disclosure - Alger Weatherbie Specialized Growth Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 2410002 - Disclosure - Alger Weatherbie Specialized Growth Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 2410003 - Disclosure - Alger Weatherbie Specialized Growth Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 2410004 - Disclosure - Alger Weatherbie Specialized Growth Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 2410005 - Disclosure - Alger Weatherbie Specialized Growth Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 2420010 - Disclosure - Alger Weatherbie Specialized Growth Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 2420020 - Disclosure - Alger Weatherbie Specialized Growth Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 2420030 - Disclosure - Alger Weatherbie Specialized Growth Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 2420040 - Disclosure - Alger Weatherbie Specialized Growth Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 2420045 - Disclosure - Alger Weatherbie Specialized Growth Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 2420050 - Disclosure - Alger Weatherbie Specialized Growth Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2420060 - Disclosure - Alger Weatherbie Specialized Growth Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2420070 - Disclosure - Alger Weatherbie Specialized Growth Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 2410000 - Disclosure - Alger Weatherbie Specialized Growth Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 2510001 - Disclosure - Alger Weatherbie Specialized Growth Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 2510002 - Disclosure - Alger Weatherbie Specialized Growth Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 2510003 - Disclosure - Alger Weatherbie Specialized Growth Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 2510004 - Disclosure - Alger Weatherbie Specialized Growth Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 2510005 - Disclosure - Alger Weatherbie Specialized Growth Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 2520010 - Disclosure - Alger Weatherbie Specialized Growth Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 2520020 - Disclosure - Alger Weatherbie Specialized Growth Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 2520030 - Disclosure - Alger Weatherbie Specialized Growth Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 2520040 - Disclosure - Alger Weatherbie Specialized Growth Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 2520045 - Disclosure - Alger Weatherbie Specialized Growth Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 2520050 - Disclosure - Alger Weatherbie Specialized Growth Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2520060 - Disclosure - Alger Weatherbie Specialized Growth Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2520070 - Disclosure - Alger Weatherbie Specialized Growth Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 2510000 - Disclosure - Alger Weatherbie Specialized Growth Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 2610001 - Disclosure - Alger Small Cap Growth Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 2610002 - Disclosure - Alger Small Cap Growth Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 2610003 - Disclosure - Alger Small Cap Growth Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 2610004 - Disclosure - Alger Small Cap Growth Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 2610005 - Disclosure - Alger Small Cap Growth Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 2620010 - Disclosure - Alger Small Cap Growth Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 2620020 - Disclosure - Alger Small Cap Growth Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 2620030 - Disclosure - Alger Small Cap Growth Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 2620040 - Disclosure - Alger Small Cap Growth Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 2620045 - Disclosure - Alger Small Cap Growth Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 2620050 - Disclosure - Alger Small Cap Growth Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2620060 - Disclosure - Alger Small Cap Growth Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2620070 - Disclosure - Alger Small Cap Growth Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 2610000 - Disclosure - Alger Small Cap Growth Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 2710001 - Disclosure - Alger Small Cap Growth Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 2710002 - Disclosure - Alger Small Cap Growth Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 2710003 - Disclosure - Alger Small Cap Growth Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 2710004 - Disclosure - Alger Small Cap Growth Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 2710005 - Disclosure - Alger Small Cap Growth Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 2720010 - Disclosure - Alger Small Cap Growth Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 2720020 - Disclosure - Alger Small Cap Growth Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 2720030 - Disclosure - Alger Small Cap Growth Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 2720040 - Disclosure - Alger Small Cap Growth Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 2720045 - Disclosure - Alger Small Cap Growth Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 2720050 - Disclosure - Alger Small Cap Growth Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2720060 - Disclosure - Alger Small Cap Growth Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2720070 - Disclosure - Alger Small Cap Growth Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 2710000 - Disclosure - Alger Small Cap Growth Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 2810001 - Disclosure - Alger Small Cap Focus Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 2810002 - Disclosure - Alger Small Cap Focus Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 2810003 - Disclosure - Alger Small Cap Focus Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 2810004 - Disclosure - Alger Small Cap Focus Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 2810005 - Disclosure - Alger Small Cap Focus Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 2820010 - Disclosure - Alger Small Cap Focus Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 2820020 - Disclosure - Alger Small Cap Focus Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 2820030 - Disclosure - Alger Small Cap Focus Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 2820040 - Disclosure - Alger Small Cap Focus Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 2820045 - Disclosure - Alger Small Cap Focus Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 2820050 - Disclosure - Alger Small Cap Focus Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2820060 - Disclosure - Alger Small Cap Focus Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2820070 - Disclosure - Alger Small Cap Focus Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 2810000 - Disclosure - Alger Small Cap Focus Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 2910001 - Disclosure - Alger Small Cap Focus Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 2910002 - Disclosure - Alger Small Cap Focus Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 2910003 - Disclosure - Alger Small Cap Focus Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 2910004 - Disclosure - Alger Small Cap Focus Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 2910005 - Disclosure - Alger Small Cap Focus Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 2920010 - Disclosure - Alger Small Cap Focus Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 2920020 - Disclosure - Alger Small Cap Focus Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 2920030 - Disclosure - Alger Small Cap Focus Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 2920040 - Disclosure - Alger Small Cap Focus Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 2920045 - Disclosure - Alger Small Cap Focus Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 2920050 - Disclosure - Alger Small Cap Focus Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2920060 - Disclosure - Alger Small Cap Focus Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 2920070 - Disclosure - Alger Small Cap Focus Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 2910000 - Disclosure - Alger Small Cap Focus Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 3010001 - Disclosure - Alger Small Cap Focus Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 3010002 - Disclosure - Alger Small Cap Focus Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 3010003 - Disclosure - Alger Small Cap Focus Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 3010004 - Disclosure - Alger Small Cap Focus Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 3010005 - Disclosure - Alger Small Cap Focus Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 3020010 - Disclosure - Alger Small Cap Focus Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 3020020 - Disclosure - Alger Small Cap Focus Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 3020030 - Disclosure - Alger Small Cap Focus Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 3020040 - Disclosure - Alger Small Cap Focus Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 3020045 - Disclosure - Alger Small Cap Focus Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 3020050 - Disclosure - Alger Small Cap Focus Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3020060 - Disclosure - Alger Small Cap Focus Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3020070 - Disclosure - Alger Small Cap Focus Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 3010000 - Disclosure - Alger Small Cap Focus Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 3110001 - Disclosure - Alger International Small Cap Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 3110002 - Disclosure - Alger International Small Cap Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 3110003 - Disclosure - Alger International Small Cap Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 3110004 - Disclosure - Alger International Small Cap Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 3110005 - Disclosure - Alger International Small Cap Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 3120010 - Disclosure - Alger International Small Cap Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 3120020 - Disclosure - Alger International Small Cap Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 3120030 - Disclosure - Alger International Small Cap Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 3120040 - Disclosure - Alger International Small Cap Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 3120045 - Disclosure - Alger International Small Cap Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 3120050 - Disclosure - Alger International Small Cap Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3120060 - Disclosure - Alger International Small Cap Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3120070 - Disclosure - Alger International Small Cap Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 3110000 - Disclosure - Alger International Small Cap Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 3210001 - Disclosure - Alger Health Sciences Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 3210002 - Disclosure - Alger Health Sciences Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 3210003 - Disclosure - Alger Health Sciences Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 3210004 - Disclosure - Alger Health Sciences Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 3210005 - Disclosure - Alger Health Sciences Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 3220010 - Disclosure - Alger Health Sciences Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 3220020 - Disclosure - Alger Health Sciences Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 3220030 - Disclosure - Alger Health Sciences Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 3220040 - Disclosure - Alger Health Sciences Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 3220045 - Disclosure - Alger Health Sciences Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 3220050 - Disclosure - Alger Health Sciences Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3220060 - Disclosure - Alger Health Sciences Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3220070 - Disclosure - Alger Health Sciences Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 3210000 - Disclosure - Alger Health Sciences Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 3310001 - Disclosure - Alger Growth and Income Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 3310002 - Disclosure - Alger Growth and Income Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 3310003 - Disclosure - Alger Growth and Income Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 3310004 - Disclosure - Alger Growth and Income Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 3310005 - Disclosure - Alger Growth and Income Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 3320010 - Disclosure - Alger Growth and Income Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 3320020 - Disclosure - Alger Growth and Income Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 3320030 - Disclosure - Alger Growth and Income Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 3320040 - Disclosure - Alger Growth and Income Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 3320045 - Disclosure - Alger Growth and Income Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 3320050 - Disclosure - Alger Growth and Income Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3320060 - Disclosure - Alger Growth and Income Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3320070 - Disclosure - Alger Growth and Income Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 3310000 - Disclosure - Alger Growth and Income Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 3410001 - Disclosure - Alger 35 Fund Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 3410002 - Disclosure - Alger 35 Fund Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 3410003 - Disclosure - Alger 35 Fund Investment Strategy link:presentationLink link:definitionLink link:calculationLink 3410004 - Disclosure - Alger 35 Fund Investment Risks link:presentationLink link:definitionLink link:calculationLink 3410005 - Disclosure - Alger 35 Fund Performance Management link:presentationLink link:definitionLink link:calculationLink 3420010 - Disclosure - Alger 35 Fund Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 3420020 - Disclosure - Alger 35 Fund Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 3420030 - Disclosure - Alger 35 Fund Expense Example link:presentationLink link:definitionLink link:calculationLink 3420040 - Disclosure - Alger 35 Fund Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 3420045 - Disclosure - Alger 35 Fund Risks Data link:presentationLink link:definitionLink link:calculationLink 3420050 - Disclosure - Alger 35 Fund Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3420060 - Disclosure - Alger 35 Fund Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3420070 - Disclosure - Alger 35 Fund Market Index Performance link:presentationLink link:definitionLink link:calculationLink 3410000 - Disclosure - Alger 35 Fund N-1A Cover link:presentationLink link:definitionLink link:calculationLink 3510001 - Disclosure - Alger AI Enablers & Adopters Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 3510002 - Disclosure - Alger AI Enablers & Adopters Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 3510003 - Disclosure - Alger AI Enablers & Adopters Investment Strategy link:presentationLink link:definitionLink link:calculationLink 3510004 - Disclosure - Alger AI Enablers & Adopters Investment Risks link:presentationLink link:definitionLink link:calculationLink 3510005 - Disclosure - Alger AI Enablers & Adopters Performance Management link:presentationLink link:definitionLink link:calculationLink 3520010 - Disclosure - Alger AI Enablers & Adopters Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 3520020 - Disclosure - Alger AI Enablers & Adopters Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 3520030 - Disclosure - Alger AI Enablers & Adopters Expense Example link:presentationLink link:definitionLink link:calculationLink 3520040 - Disclosure - Alger AI Enablers & Adopters Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 3520045 - Disclosure - Alger AI Enablers & Adopters Risks Data link:presentationLink link:definitionLink link:calculationLink 3520050 - Disclosure - Alger AI Enablers & Adopters Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3520060 - Disclosure - Alger AI Enablers & Adopters Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3520070 - Disclosure - Alger AI Enablers & Adopters Market Index Performance link:presentationLink link:definitionLink link:calculationLink 3510000 - Disclosure - Alger AI Enablers & Adopters N-1A Cover link:presentationLink link:definitionLink link:calculationLink 3610001 - Disclosure - Alger AI Enablers & Adopters Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 3610002 - Disclosure - Alger AI Enablers & Adopters Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 3610003 - Disclosure - Alger AI Enablers & Adopters Investment Strategy link:presentationLink link:definitionLink link:calculationLink 3610004 - Disclosure - Alger AI Enablers & Adopters Investment Risks link:presentationLink link:definitionLink link:calculationLink 3610005 - Disclosure - Alger AI Enablers & Adopters Performance Management link:presentationLink link:definitionLink link:calculationLink 3620010 - Disclosure - Alger AI Enablers & Adopters Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 3620020 - Disclosure - Alger AI Enablers & Adopters Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 3620030 - Disclosure - Alger AI Enablers & Adopters Expense Example link:presentationLink link:definitionLink link:calculationLink 3620040 - Disclosure - Alger AI Enablers & Adopters Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 3620045 - Disclosure - Alger AI Enablers & Adopters Risks Data link:presentationLink link:definitionLink link:calculationLink 3620050 - Disclosure - Alger AI Enablers & Adopters Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3620060 - Disclosure - Alger AI Enablers & Adopters Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3620070 - Disclosure - Alger AI Enablers & Adopters Market Index Performance link:presentationLink link:definitionLink link:calculationLink 3610000 - Disclosure - Alger AI Enablers & Adopters N-1A Cover link:presentationLink link:definitionLink link:calculationLink 3710001 - Disclosure - Alger AI Enablers & Adopters Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 3710002 - Disclosure - Alger AI Enablers & Adopters Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 3710003 - Disclosure - Alger AI Enablers & Adopters Investment Strategy link:presentationLink link:definitionLink link:calculationLink 3710004 - Disclosure - Alger AI Enablers & Adopters Investment Risks link:presentationLink link:definitionLink link:calculationLink 3710005 - Disclosure - Alger AI Enablers & Adopters Performance Management link:presentationLink link:definitionLink link:calculationLink 3720010 - Disclosure - Alger AI Enablers & Adopters Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 3720020 - Disclosure - Alger AI Enablers & Adopters Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 3720030 - Disclosure - Alger AI Enablers & Adopters Expense Example link:presentationLink link:definitionLink link:calculationLink 3720040 - Disclosure - Alger AI Enablers & Adopters Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 3720045 - Disclosure - Alger AI Enablers & Adopters Risks Data link:presentationLink link:definitionLink link:calculationLink 3720050 - Disclosure - Alger AI Enablers & Adopters Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3720060 - Disclosure - Alger AI Enablers & Adopters Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 3720070 - Disclosure - Alger AI Enablers & Adopters Market Index Performance link:presentationLink link:definitionLink link:calculationLink 3710000 - Disclosure - Alger AI Enablers & Adopters N-1A Cover link:presentationLink link:definitionLink link:calculationLink Alger Capital Appreciation Fund S000009163 [Member] Class A C Shares [Member] Class A C000024912 [Member] Class C C000024914 [Member] Russell 1000 Growth Index (reflects no deductions for fees, expenses or taxes)[Member] S&P 500 Index (reflects no deductions for fees, expenses or taxes)[Member] Investment Risk [Member] Market Risk [Member] Equity Securities Risk [Member] Growth Securities Risk [Member] Sector Risk [Member] Information Technology Sector Risk [Member] Consumer Discretionary Sector Risk [Member] Communication Services Sector Risk [Member] Privately Placed Securities Risk [Member] Foreign Securities Risk [Member] Cash Position Risk [Member] Alger Concentrated Equity Fund S000084278 [Member] C000248571 [Member] C000248567 [Member] Concentration Risk [Member] Small Number of Holdings Risk [Member] Affiliate Ownership Risk [Member] Alger International Opportunities Fund S000009159 [Member] Class A B C Shares [Member] C000024900 [Member] Class B C000024901 [Member] C000024902 [Member] MSCI ACWI ex USA Gross Index (reflects no deductions for fees, expenses or taxes)[Member] Emerging Markets Risk [Member] Frontier Markets Risk [Member] Industrials Sector Risk [Member] Financials Sector Risk [Member] Small Cap Securities Risk [Member] Alger Mid Cap Focus Fund S000063650 [Member] C000228969 [Member] C000228970 [Member] Russell Midcap Growth Index (reflects no deductions for fees, expenses or taxes)[Member] Mid Cap Securities Risk [Member] Health Care Sector Risk [Member] Portfolio Turnover Active Trading Risk [Member] Alger Mid Cap Growth Fund S000009162 [Member] C000024909 [Member] C000024910 [Member] C000024911 [Member] Alger Weatherbie Specialized Growth Fund S000009165 [Member] C000024918 [Member] C000024920 [Member] Russell 2500 Growth Index (reflects no deductions for fees, expenses or taxes)[Member] Small and Mid Cap Securities Risk [Member] Alger Small Cap Growth Fund S000009160 [Member] C000024903 [Member] C000024904 [Member] C000024905 [Member] Russell 2000 Growth Index (reflects no deductions for fees, expenses or taxes)[Member] Alger Small Cap Focus Fund S000020958 [Member] C000059337 [Member] C000059339 [Member] Alger International Small Cap Fund S000093455 [Member] C000261739 [Member] ADR and GDR Risk [Member] Alger Health Sciences Fund S000009164 [Member] C000024915 [Member] C000024917 [Member] Russell 3000 Health Care Index (reflects no deductions for fees, expenses or taxes)[Member] Alger Growth and Income Fund S000009161 [Member] C000024906 [Member] C000024908 [Member] Income-Producing Securities Risk [Member] Alger AI Enablers & Adopters S000084279 [Member] C000248576 [Member] C000248572 [Member] Artificial Intelligence Securities Risk [Member] Class Z Shares [Member] Class Z C000095959 [Member] Class I Shares [Member] Class I C000248568 [Member] Class Y Shares [Member] Class Y C000248569 [Member] C000248570 [Member] C000039971 [Member] C000095957 [Member] C000206144 [Member] C000225967 [Member] C000206145 [Member] C000156504 [Member] C000051550 [Member] C000193201 [Member] C000095960 [Member] C000232602 [Member] C000095958 [Member] C000059340 [Member] C000179520 [Member] C000095961 [Member] C000261740 [Member] C000156505 [Member] C000111113 [Member] Alger 35 Fund S000061618 [Member] C000199574 [Member] Russell 3000 Growth Index (reflects no deductions for fees, expenses or taxes)[Member] Small Cap and Mid Cap Securities Risk [Member] C000248573 [Member] C000248574 [Member] C000248575 [Member]