Ab Cap Fund N-CSR3 Oct 24Certified annual shareholder report (management investment company)Financial data

Company Profile

Form N-CSR Cover

Form N-CSR Cover	12 Months Ended
Form N-CSR Cover	Jul. 31, 2024
Shareholder Report [Line Items]
Document Type	N-CSR
Amendment Flag	false
Registrant Name	AB CAP FUND, INC.
Entity Central Index Key	0000081443
Entity Investment Company Type	N-1A
Document Period End Date	Jul. 31, 2024

Shareholder Report

Shareholder Report	12 Months Ended	109 Months Ended
Shareholder Report	Jul. 31, 2024 USD ($) Holding	Jul. 31, 2024 USD ($) Holding
Shareholder Report [Line Items]
Document Type	N-CSR
Amendment Flag	false
Registrant Name	AB CAP FUND, INC.
Entity Central Index Key	0000081443
Entity Investment Company Type	N-1A
Document Period End Date	Jul. 31, 2024
C000028524
Shareholder Report [Line Items]
Fund Name	AB Small Cap Growth Portfolio
Class Name	Advisor Class
Trading Symbol	QUAYX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about the AB Small Cap Growth Portfolio (the “Fund”) for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	Annual Shareholder Report
Additional Information [Text Block]	You can find additional information about the Fund at https://www.abfunds.com/link/BWM/QUAYX-A. You can also request this information by contacting us at (800) 227 4618.
Additional Information Phone Number	(800) 227 4618
Additional Information Website	https://www.abfunds.com/link/BWM/QUAYX-A
Expenses [Text Block]	What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Advisor Class $92 0.88%
Expenses Paid, Amount	$ 92
Expense Ratio, Percent	0.88%
Performance Past Does Not Indicate Future [Text]
Average Annual Return [Table Text Block]	1 Year 5 Years 10 Years Advisor Class (without sales charges) 10.01 % 6.64 % 10.38 % Advisor Class (with sales charges) 10.01 % 6.64 % 10.38 % S&P 500 Index 22.15 % 15.00 % 13.15 % Russell 2000 Growth Index 12.80 % 7.64 % 8.92 %
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares.
AssetsNet	$ 3,763,037,331	$ 3,763,037,331
Holdings Count \| Holding	101	101
Advisory Fees Paid, Amount	$ 26,554,000
InvestmentCompanyPortfolioTurnover	78%
Additional Fund Statistics [Text Block]	Key Fund Statistics Net Assets $3,763,037,331 # of Portfolio Holdings 101 Portfolio Turnover Rate 78% Total Advisory Fees Paid $26,554,000
Holdings [Text Block]	Sector Allocation Value Value Information Technology 23.2% Health Care 22.1% Industrials 20.0% Consumer Discretionary 12.9% Financials 7.9% Consumer Staples 4.2% Energy 3.6% Materials 2.1% Investment Companies 1.6% Real Estate 1.0% Short-Term Investments 3.9% Other assets less liabilities -
Largest Holdings [Text Block]	10 Top Holdings Company U.S. $ Value % of Net Assets SPS Commerce, Inc. $77,372,832 2.1 % SPX Technologies, Inc. $68,362,512 1.8 % Fabrinet $67,328,366 1.8 % Modine Manufacturing Co. $63,301,786 1.7 % Boot Barn Holdings, Inc. $61,613,434 1.6 % CSW Industrials, Inc. $61,312,136 1.6 % iShares Russell 2000 Growth ETF $60,937,532 1.6 % Construction Partners, Inc. - Class A $60,382,065 1.6 % StepStone Group, Inc. - Class A $59,793,819 1.6 % PROCEPT BioRobotics Corp. $58,675,415 1.6 % Total $639,079,897 17.0 %
Material Fund Change [Text Block]
C000028521
Shareholder Report [Line Items]
Fund Name	AB Small Cap Growth Portfolio
Class Name	Class A
Trading Symbol	QUASX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about the AB Small Cap Growth Portfolio (the “Fund”) for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	Annual Shareholder Report
Additional Information [Text Block]	You can find additional information about the Fund at https://www.abfunds.com/link/BWM/QUASX-A. You can also request this information by contacting us at (800) 227 4618.
Additional Information Phone Number	(800) 227 4618
Additional Information Website	https://www.abfunds.com/link/BWM/QUASX-A
Expenses [Text Block]	What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $118 1.13%
Expenses Paid, Amount	$ 118
Expense Ratio, Percent	1.13%
Performance Past Does Not Indicate Future [Text]
Average Annual Return [Table Text Block]	1 Year 5 Years 10 Years Class A (without sales charges) 9.73 % 6.38 % 10.11 % Class A (with sales charges) 5.07 % 5.45 % 9.63 % S&P 500 Index 22.15 % 15.00 % 13.15 % Russell 2000 Growth Index 12.80 % 7.64 % 8.92 %
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares.
AssetsNet	$ 3,763,037,331	$ 3,763,037,331
Holdings Count \| Holding	101	101
Advisory Fees Paid, Amount	$ 26,554,000
InvestmentCompanyPortfolioTurnover	78%
Additional Fund Statistics [Text Block]	Key Fund Statistics Net Assets $3,763,037,331 # of Portfolio Holdings 101 Portfolio Turnover Rate 78% Total Advisory Fees Paid $26,554,000
Holdings [Text Block]	Sector Allocation Value Value Information Technology 23.2% Health Care 22.1% Industrials 20.0% Consumer Discretionary 12.9% Financials 7.9% Consumer Staples 4.2% Energy 3.6% Materials 2.1% Investment Companies 1.6% Real Estate 1.0% Short-Term Investments 3.9% Other assets less liabilities -
Largest Holdings [Text Block]	10 Top Holdings Company U.S. $ Value % of Net Assets SPS Commerce, Inc. $77,372,832 2.1 % SPX Technologies, Inc. $68,362,512 1.8 % Fabrinet $67,328,366 1.8 % Modine Manufacturing Co. $63,301,786 1.7 % Boot Barn Holdings, Inc. $61,613,434 1.6 % CSW Industrials, Inc. $61,312,136 1.6 % iShares Russell 2000 Growth ETF $60,937,532 1.6 % Construction Partners, Inc. - Class A $60,382,065 1.6 % StepStone Group, Inc. - Class A $59,793,819 1.6 % PROCEPT BioRobotics Corp. $58,675,415 1.6 % Total $639,079,897 17.0 %
Material Fund Change [Text Block]
C000028523
Shareholder Report [Line Items]
Fund Name	AB Small Cap Growth Portfolio
Class Name	Class C
Trading Symbol	QUACX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about the AB Small Cap Growth Portfolio (the “Fund”) for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	Annual Shareholder Report
Additional Information [Text Block]	You can find additional information about the Fund at https://www.abfunds.com/link/BWM/QUACX-A. You can also request this information by contacting us at (800) 227 4618.
Additional Information Phone Number	(800) 227 4618
Additional Information Website	https://www.abfunds.com/link/BWM/QUACX-A
Expenses [Text Block]	What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $196 1.88%
Expenses Paid, Amount	$ 196
Expense Ratio, Percent	1.88%
Performance Past Does Not Indicate Future [Text]
Average Annual Return [Table Text Block]	1 Year 5 Years 10 Years Class C (without sales charges) 8.90 % 5.58 % 9.28 % Class C (with sales charges) 7.90 % 5.58 % 9.28 % S&P 500 Index 22.15 % 15.00 % 13.15 % Russell 2000 Growth Index 12.80 % 7.64 % 8.92 %
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares.
AssetsNet	$ 3,763,037,331	$ 3,763,037,331
Holdings Count \| Holding	101	101
Advisory Fees Paid, Amount	$ 26,554,000
InvestmentCompanyPortfolioTurnover	78%
Additional Fund Statistics [Text Block]	Key Fund Statistics Net Assets $3,763,037,331 # of Portfolio Holdings 101 Portfolio Turnover Rate 78% Total Advisory Fees Paid $26,554,000
Holdings [Text Block]	Sector Allocation Value Value Information Technology 23.2% Health Care 22.1% Industrials 20.0% Consumer Discretionary 12.9% Financials 7.9% Consumer Staples 4.2% Energy 3.6% Materials 2.1% Investment Companies 1.6% Real Estate 1.0% Short-Term Investments 3.9% Other assets less liabilities -
Largest Holdings [Text Block]	10 Top Holdings Company U.S. $ Value % of Net Assets SPS Commerce, Inc. $77,372,832 2.1 % SPX Technologies, Inc. $68,362,512 1.8 % Fabrinet $67,328,366 1.8 % Modine Manufacturing Co. $63,301,786 1.7 % Boot Barn Holdings, Inc. $61,613,434 1.6 % CSW Industrials, Inc. $61,312,136 1.6 % iShares Russell 2000 Growth ETF $60,937,532 1.6 % Construction Partners, Inc. - Class A $60,382,065 1.6 % StepStone Group, Inc. - Class A $59,793,819 1.6 % PROCEPT BioRobotics Corp. $58,675,415 1.6 % Total $639,079,897 17.0 %
Material Fund Change [Text Block]
C000028527
Shareholder Report [Line Items]
Fund Name	AB Small Cap Growth Portfolio
Class Name	Class I
Trading Symbol	QUAIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about the AB Small Cap Growth Portfolio (the “Fund”) for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	Annual Shareholder Report
Additional Information [Text Block]	You can find additional information about the Fund at https://www.abfunds.com/link/BWM/QUAIX-A. You can also request this information by contacting us at (800) 227 4618.
Additional Information Phone Number	(800) 227 4618
Additional Information Website	https://www.abfunds.com/link/BWM/QUAIX-A
Expenses [Text Block]	What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $90 0.86%
Expenses Paid, Amount	$ 90
Expense Ratio, Percent	0.86%
Performance Past Does Not Indicate Future [Text]
Average Annual Return [Table Text Block]	1 Year 5 Years 10 Years Class I (without sales charges) 10.04 % 6.67 % 10.42 % Class I (with sales charges) 10.04 % 6.67 % 10.42 % S&P 500 Index 22.15 % 15.00 % 13.15 % Russell 2000 Growth Index 12.80 % 7.64 % 8.92 %
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares.
AssetsNet	$ 3,763,037,331	$ 3,763,037,331
Holdings Count \| Holding	101	101
Advisory Fees Paid, Amount	$ 26,554,000
InvestmentCompanyPortfolioTurnover	78%
Additional Fund Statistics [Text Block]	Key Fund Statistics Net Assets $3,763,037,331 # of Portfolio Holdings 101 Portfolio Turnover Rate 78% Total Advisory Fees Paid $26,554,000
Holdings [Text Block]	Sector Allocation Value Value Information Technology 23.2% Health Care 22.1% Industrials 20.0% Consumer Discretionary 12.9% Financials 7.9% Consumer Staples 4.2% Energy 3.6% Materials 2.1% Investment Companies 1.6% Real Estate 1.0% Short-Term Investments 3.9% Other assets less liabilities -
Largest Holdings [Text Block]	10 Top Holdings Company U.S. $ Value % of Net Assets SPS Commerce, Inc. $77,372,832 2.1 % SPX Technologies, Inc. $68,362,512 1.8 % Fabrinet $67,328,366 1.8 % Modine Manufacturing Co. $63,301,786 1.7 % Boot Barn Holdings, Inc. $61,613,434 1.6 % CSW Industrials, Inc. $61,312,136 1.6 % iShares Russell 2000 Growth ETF $60,937,532 1.6 % Construction Partners, Inc. - Class A $60,382,065 1.6 % StepStone Group, Inc. - Class A $59,793,819 1.6 % PROCEPT BioRobotics Corp. $58,675,415 1.6 % Total $639,079,897 17.0 %
Material Fund Change [Text Block]
C000028526
Shareholder Report [Line Items]
Fund Name	AB Small Cap Growth Portfolio
Class Name	Class K
Trading Symbol	QUAKX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about the AB Small Cap Growth Portfolio (the “Fund”) for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	Annual Shareholder Report
Additional Information [Text Block]	You can find additional information about the Fund at https://www.abfunds.com/link/BWM/QUAKX-A. You can also request this information by contacting us at (800) 227 4618.
Additional Information Phone Number	(800) 227 4618
Additional Information Website	https://www.abfunds.com/link/BWM/QUAKX-A
Expenses [Text Block]	What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class K $116 1.11%
Expenses Paid, Amount	$ 116
Expense Ratio, Percent	1.11%
Performance Past Does Not Indicate Future [Text]
Average Annual Return [Table Text Block]	1 Year 5 Years 10 Years Class K (without sales charges) 9.75 % 6.37 % 10.11 % Class K (with sales charges) 9.75 % 6.37 % 10.11 % S&P 500 Index 22.15 % 15.00 % 13.15 % Russell 2000 Growth Index 12.80 % 7.64 % 8.92 %
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares.
AssetsNet	$ 3,763,037,331	$ 3,763,037,331
Holdings Count \| Holding	101	101
Advisory Fees Paid, Amount	$ 26,554,000
InvestmentCompanyPortfolioTurnover	78%
Additional Fund Statistics [Text Block]	Key Fund Statistics Net Assets $3,763,037,331 # of Portfolio Holdings 101 Portfolio Turnover Rate 78% Total Advisory Fees Paid $26,554,000
Holdings [Text Block]	Sector Allocation Value Value Information Technology 23.2% Health Care 22.1% Industrials 20.0% Consumer Discretionary 12.9% Financials 7.9% Consumer Staples 4.2% Energy 3.6% Materials 2.1% Investment Companies 1.6% Real Estate 1.0% Short-Term Investments 3.9% Other assets less liabilities -
Largest Holdings [Text Block]	10 Top Holdings Company U.S. $ Value % of Net Assets SPS Commerce, Inc. $77,372,832 2.1 % SPX Technologies, Inc. $68,362,512 1.8 % Fabrinet $67,328,366 1.8 % Modine Manufacturing Co. $63,301,786 1.7 % Boot Barn Holdings, Inc. $61,613,434 1.6 % CSW Industrials, Inc. $61,312,136 1.6 % iShares Russell 2000 Growth ETF $60,937,532 1.6 % Construction Partners, Inc. - Class A $60,382,065 1.6 % StepStone Group, Inc. - Class A $59,793,819 1.6 % PROCEPT BioRobotics Corp. $58,675,415 1.6 % Total $639,079,897 17.0 %
Material Fund Change [Text Block]
C000028525
Shareholder Report [Line Items]
Fund Name	AB Small Cap Growth Portfolio
Class Name	Class R
Trading Symbol	QUARX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about the AB Small Cap Growth Portfolio (the “Fund”) for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	Annual Shareholder Report
Additional Information [Text Block]	You can find additional information about the Fund at https://www.abfunds.com/link/BWM/QUARX-A. You can also request this information by contacting us at (800) 227 4618.
Additional Information Phone Number	(800) 227 4618
Additional Information Website	https://www.abfunds.com/link/BWM/QUARX-A
Expenses [Text Block]	What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R $157 1.50%
Expenses Paid, Amount	$ 157
Expense Ratio, Percent	1.50%
Performance Past Does Not Indicate Future [Text]
Average Annual Return [Table Text Block]	1 Year 5 Years 10 Years Class R (without sales charges) 9.33 % 6.00 % 9.72 % Class R (with sales charges) 9.33 % 6.00 % 9.72 % S&P 500 Index 22.15 % 15.00 % 13.15 % Russell 2000 Growth Index 12.80 % 7.64 % 8.92 %
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares.
AssetsNet	$ 3,763,037,331	$ 3,763,037,331
Holdings Count \| Holding	101	101
Advisory Fees Paid, Amount	$ 26,554,000
InvestmentCompanyPortfolioTurnover	78%
Additional Fund Statistics [Text Block]	Key Fund Statistics Net Assets $3,763,037,331 # of Portfolio Holdings 101 Portfolio Turnover Rate 78% Total Advisory Fees Paid $26,554,000
Holdings [Text Block]	Sector Allocation Value Value Information Technology 23.2% Health Care 22.1% Industrials 20.0% Consumer Discretionary 12.9% Financials 7.9% Consumer Staples 4.2% Energy 3.6% Materials 2.1% Investment Companies 1.6% Real Estate 1.0% Short-Term Investments 3.9% Other assets less liabilities -
Largest Holdings [Text Block]	10 Top Holdings Company U.S. $ Value % of Net Assets SPS Commerce, Inc. $77,372,832 2.1 % SPX Technologies, Inc. $68,362,512 1.8 % Fabrinet $67,328,366 1.8 % Modine Manufacturing Co. $63,301,786 1.7 % Boot Barn Holdings, Inc. $61,613,434 1.6 % CSW Industrials, Inc. $61,312,136 1.6 % iShares Russell 2000 Growth ETF $60,937,532 1.6 % Construction Partners, Inc. - Class A $60,382,065 1.6 % StepStone Group, Inc. - Class A $59,793,819 1.6 % PROCEPT BioRobotics Corp. $58,675,415 1.6 % Total $639,079,897 17.0 %
Material Fund Change [Text Block]
C000159958
Shareholder Report [Line Items]
Fund Name	AB Small Cap Growth Portfolio
Class Name	Class Z
Trading Symbol	QUAZX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about the AB Small Cap Growth Portfolio (the “Fund”) for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	Annual Shareholder Report
Additional Information [Text Block]	You can find additional information about the Fund at https://www.abfunds.com/link/BWM/QUAZX-A. You can also request this information by contacting us at (800) 227 4618.
Additional Information Phone Number	(800) 227 4618
Additional Information Website	https://www.abfunds.com/link/BWM/QUAZX-A
Expenses [Text Block]	What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class Z $80 0.76%
Expenses Paid, Amount	$ 80
Expense Ratio, Percent	0.76%
Performance Past Does Not Indicate Future [Text]
Average Annual Return [Table Text Block]	1 Year 5 Years Since Inception 7/1/15 Class Z (without sales charges) 10.13 % 6.75 % 10.00 % Class Z (with sales charges) 10.13 % 6.75 % 10.00 % S&P 500 Index 22.15 % 15.00 % 13.50 % Russell 2000 Growth Index 12.80 % 7.64 % 7.72 %
Performance Inception Date		Jul. 01, 2015
No Deduction of Taxes [Text Block]	The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares.
AssetsNet	$ 3,763,037,331	$ 3,763,037,331
Holdings Count \| Holding	101	101
Advisory Fees Paid, Amount	$ 26,554,000
InvestmentCompanyPortfolioTurnover	78%
Additional Fund Statistics [Text Block]	Key Fund Statistics Net Assets $3,763,037,331 # of Portfolio Holdings 101 Portfolio Turnover Rate 78% Total Advisory Fees Paid $26,554,000
Holdings [Text Block]	Sector Allocation Value Value Information Technology 23.2% Health Care 22.1% Industrials 20.0% Consumer Discretionary 12.9% Financials 7.9% Consumer Staples 4.2% Energy 3.6% Materials 2.1% Investment Companies 1.6% Real Estate 1.0% Short-Term Investments 3.9% Other assets less liabilities -
Largest Holdings [Text Block]	10 Top Holdings Company U.S. $ Value % of Net Assets SPS Commerce, Inc. $77,372,832 2.1 % SPX Technologies, Inc. $68,362,512 1.8 % Fabrinet $67,328,366 1.8 % Modine Manufacturing Co. $63,301,786 1.7 % Boot Barn Holdings, Inc. $61,613,434 1.6 % CSW Industrials, Inc. $61,312,136 1.6 % iShares Russell 2000 Growth ETF $60,937,532 1.6 % Construction Partners, Inc. - Class A $60,382,065 1.6 % StepStone Group, Inc. - Class A $59,793,819 1.6 % PROCEPT BioRobotics Corp. $58,675,415 1.6 % Total $639,079,897 17.0 %
Material Fund Change [Text Block]

Shareholder Report, Line Graph

Shareholder Report, Line Graph (Details) - USD ($)	12 Months Ended
Shareholder Report, Line Graph (Details) - USD ($)	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015	Jun. 30, 2015	Jul. 31, 2014
C000028524
Account Value [Line Items]
Line Graph and Table Measure Name	Advisor Class
Account Value	$ 26,860	$ 24,416	$ 22,841	$ 32,833	$ 23,171	$ 19,477	$ 17,247	$ 12,841	$ 10,501	$ 11,351		$ 10,000
C000028521
Account Value [Line Items]
Line Graph and Table Measure Name	Class A
Account Value	$ 25,087	22,862	21,440	30,898	21,859	18,419	16,353	12,205	10,005	10,842		9,575
C000028523
Account Value [Line Items]
Line Graph and Table Measure Name	Class C
Account Value	$ 24,296	22,311	21,081	30,605	21,815	18,522	16,568	12,458	10,287	11,233		10,000
C000028527
Account Value [Line Items]
Line Graph and Table Measure Name	Class I
Account Value	$ 26,935	24,479	22,887	32,887	23,211	19,508	17,276	12,864	10,518	11,356		10,000
C000028526
Account Value [Line Items]
Line Graph and Table Measure Name	Class K
Account Value	$ 26,209	23,882	22,453	32,326	22,859	19,248	17,077	12,741	10,448	11,316		10,000
C000028525
Account Value [Line Items]
Line Graph and Table Measure Name	Class R
Account Value	$ 25,282	23,124	21,752	31,451	22,342	18,896	16,841	12,620	10,380	11,281		10,000
C000159958
Account Value [Line Items]
Line Graph and Table Measure Name	Class Z
Account Value	$ 23,773	21,586	20,169	28,956	20,419	17,146	15,169	11,285	9,216	9,942	$ 10,000
AllianceBernstein Index: S&P 500 Index
Account Value [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Account Value	$ 34,403	28,165	24,921	26,134	19,153	17,108	15,843	13,629	11,745	11,121		10,000
AllianceBernstein Index: S&P 500 Index
Account Value [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Account Value	$ 34,403	28,165	24,921	26,134	19,153	17,108	15,843	13,629	11,745	11,121		10,000
AllianceBernstein Index: S&P 500 Index
Account Value [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Account Value	$ 34,403	28,165	24,921	26,134	19,153	17,108	15,843	13,629	11,745	11,121		10,000
AllianceBernstein Index: S&P 500 Index
Account Value [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Account Value	$ 34,403	28,165	24,921	26,134	19,153	17,108	15,843	13,629	11,745	11,121		10,000
AllianceBernstein Index: S&P 500 Index
Account Value [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Account Value	$ 34,403	28,165	24,921	26,134	19,153	17,108	15,843	13,629	11,745	11,121		10,000
AllianceBernstein Index: S&P 500 Index
Account Value [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Account Value	$ 34,403	28,165	24,921	26,134	19,153	17,108	15,843	13,629	11,745	11,121		10,000
AllianceBernstein Index: S&P 500 Index
Account Value [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Account Value	$ 31,584	25,857	22,879	23,993	17,584	15,706	14,544	12,512	10,783	10,210	10,000
AllianceBernstein Index: Russell 2000 Growth Index
Account Value [Line Items]
Line Graph and Table Measure Name	Russell 2000 Growth Index
Account Value	$ 23,493	20,828	18,666	24,299	17,233	16,258	16,458	13,390	11,371	12,007		10,000
AllianceBernstein Index: Russell 2000 Growth Index
Account Value [Line Items]
Line Graph and Table Measure Name	Russell 2000 Growth Index
Account Value	$ 23,493	20,828	18,666	24,299	17,233	16,258	16,458	13,390	11,371	12,007		10,000
AllianceBernstein Index: Russell 2000 Growth Index
Account Value [Line Items]
Line Graph and Table Measure Name	Russell 2000 Growth Index
Account Value	$ 23,493	20,828	18,666	24,299	17,233	16,258	16,458	13,390	11,371	12,007		10,000
AllianceBernstein Index: Russell 2000 Growth Index
Account Value [Line Items]
Line Graph and Table Measure Name	Russell 2000 Growth Index
Account Value	$ 23,493	20,828	18,666	24,299	17,233	16,258	16,458	13,390	11,371	12,007		10,000
AllianceBernstein Index: Russell 2000 Growth Index
Account Value [Line Items]
Line Graph and Table Measure Name	Russell 2000 Growth Index
Account Value	$ 23,493	20,828	18,666	24,299	17,233	16,258	16,458	13,390	11,371	12,007		10,000
AllianceBernstein Index: Russell 2000 Growth Index
Account Value [Line Items]
Line Graph and Table Measure Name	Russell 2000 Growth Index
Account Value	$ 23,493	20,828	18,666	24,299	17,233	16,258	16,458	13,390	11,371	12,007		$ 10,000
AllianceBernstein Index: Russell 2000 Growth Index
Account Value [Line Items]
Line Graph and Table Measure Name	Russell 2000 Growth Index
Account Value	$ 19,646	$ 17,417	$ 15,609	$ 20,319	$ 14,411	$ 13,595	$ 13,763	$ 11,197	$ 9,508	$ 10,041	$ 10,000

Shareholder Report, Average Ann

Shareholder Report, Average Annual Return (Details)	12 Months Ended	60 Months Ended	109 Months Ended	120 Months Ended
Shareholder Report, Average Annual Return (Details)	Jul. 31, 2024	Jul. 31, 2024	Jul. 31, 2024	Jul. 31, 2024
C000028524
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Advisor Class
Average Annual Return, Percent	10.01%	6.64%		10.38%
C000028521
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class A
Average Annual Return, Percent	5.07%	5.45%		9.63%
C000028523
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class C
Average Annual Return, Percent	7.90%	5.58%		9.28%
C000028527
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class I
Average Annual Return, Percent	10.04%	6.67%		10.42%
C000028526
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class K
Average Annual Return, Percent	9.75%	6.37%		10.11%
C000028525
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class R
Average Annual Return, Percent	9.33%	6%		9.72%
C000159958
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class Z
Average Annual Return, Percent	10.13%	6.75%	10%
Without Sales Load [Member] \| C000028524
Average Annual Return [Line Items]
Average Annual Return, Percent	10.01%	6.64%		10.38%
Without Sales Load [Member] \| C000028521
Average Annual Return [Line Items]
Average Annual Return, Percent	9.73%	6.38%		10.11%
Without Sales Load [Member] \| C000028523
Average Annual Return [Line Items]
Average Annual Return, Percent	8.90%	5.58%		9.28%
Without Sales Load [Member] \| C000028527
Average Annual Return [Line Items]
Average Annual Return, Percent	10.04%	6.67%		10.42%
Without Sales Load [Member] \| C000028526
Average Annual Return [Line Items]
Average Annual Return, Percent	9.75%	6.37%		10.11%
Without Sales Load [Member] \| C000028525
Average Annual Return [Line Items]
Average Annual Return, Percent	9.33%	6%		9.72%
Without Sales Load [Member] \| C000159958
Average Annual Return [Line Items]
Average Annual Return, Percent	10.13%	6.75%	10%
AllianceBernstein Index: S&P 500 Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Average Annual Return, Percent	22.15%	15%		13.15%
AllianceBernstein Index: S&P 500 Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Average Annual Return, Percent	22.15%	15%		13.15%
AllianceBernstein Index: S&P 500 Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Average Annual Return, Percent	22.15%	15%		13.15%
AllianceBernstein Index: S&P 500 Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Average Annual Return, Percent	22.15%	15%		13.15%
AllianceBernstein Index: S&P 500 Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Average Annual Return, Percent	22.15%	15%		13.15%
AllianceBernstein Index: S&P 500 Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Average Annual Return, Percent	22.15%	15%		13.15%
AllianceBernstein Index: S&P 500 Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	S&P 500 Index
Average Annual Return, Percent	22.15%	15%	13.50%
AllianceBernstein Index: Russell 2000 Growth Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Russell 2000 Growth Index
Average Annual Return, Percent	12.80%	7.64%		8.92%
AllianceBernstein Index: Russell 2000 Growth Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Russell 2000 Growth Index
Average Annual Return, Percent	12.80%	7.64%		8.92%
AllianceBernstein Index: Russell 2000 Growth Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Russell 2000 Growth Index
Average Annual Return, Percent	12.80%	7.64%		8.92%
AllianceBernstein Index: Russell 2000 Growth Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Russell 2000 Growth Index
Average Annual Return, Percent	12.80%	7.64%		8.92%
AllianceBernstein Index: Russell 2000 Growth Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Russell 2000 Growth Index
Average Annual Return, Percent	12.80%	7.64%		8.92%
AllianceBernstein Index: Russell 2000 Growth Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Russell 2000 Growth Index
Average Annual Return, Percent	12.80%	7.64%		8.92%
AllianceBernstein Index: Russell 2000 Growth Index
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Russell 2000 Growth Index
Average Annual Return, Percent	12.80%	7.64%	7.72%

Shareholder Report, Holdings (D

Shareholder Report, Holdings (Details)	Jul. 31, 2024
C000028524 \| SPS Commerce, Inc.FR_78463M107
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000028524 \| SPX Technologies, Inc.FR_78473E103
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000028524 \| FabrinetFR_G3323L100
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000028524 \| Modine Manufacturing Co.FR_607828100
Holdings [Line Items]
Percent of Net Asset Value	1.70%
C000028524 \| Boot Barn Holdings, Inc.FR_099406100
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028524 \| CSW Industrials, Inc.FR_126402106
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028524 \| iShares Russell 2000 Growth ETFFR_464287648
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028524 \| Construction Partners, Inc.FR_21044C107
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028524 \| StepStone Group, Inc.FR_85914M107
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028524 \| PROCEPT BioRobotics Corp.FR_74276L105
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028524 \| SectorInformation Technology
Holdings [Line Items]
Percent of Net Asset Value	23.20%
C000028524 \| SectorHealth Care
Holdings [Line Items]
Percent of Net Asset Value	22.10%
C000028524 \| SectorIndustrials
Holdings [Line Items]
Percent of Net Asset Value	20%
C000028524 \| SectorConsumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	12.90%
C000028524 \| SectorFinancials
Holdings [Line Items]
Percent of Net Asset Value	7.90%
C000028524 \| SectorConsumer Staples
Holdings [Line Items]
Percent of Net Asset Value	4.20%
C000028524 \| SectorEnergy
Holdings [Line Items]
Percent of Net Asset Value	3.60%
C000028524 \| SectorMaterials
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000028524 \| SectorInvestment Companies
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028524 \| SectorReal Estate
Holdings [Line Items]
Percent of Net Asset Value	1%
C000028524 \| SectorShort-Term Investments
Holdings [Line Items]
Percent of Net Asset Value	3.90%
C000028524 \| Sector Other Net Line
Holdings [Line Items]
Percent of Net Asset Value	(2.50%)
C000028521 \| SPS Commerce, Inc.FR_78463M107
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000028521 \| SPX Technologies, Inc.FR_78473E103
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000028521 \| FabrinetFR_G3323L100
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000028521 \| Modine Manufacturing Co.FR_607828100
Holdings [Line Items]
Percent of Net Asset Value	1.70%
C000028521 \| Boot Barn Holdings, Inc.FR_099406100
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028521 \| CSW Industrials, Inc.FR_126402106
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028521 \| iShares Russell 2000 Growth ETFFR_464287648
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028521 \| Construction Partners, Inc.FR_21044C107
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028521 \| StepStone Group, Inc.FR_85914M107
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028521 \| PROCEPT BioRobotics Corp.FR_74276L105
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028521 \| SectorInformation Technology
Holdings [Line Items]
Percent of Net Asset Value	23.20%
C000028521 \| SectorHealth Care
Holdings [Line Items]
Percent of Net Asset Value	22.10%
C000028521 \| SectorIndustrials
Holdings [Line Items]
Percent of Net Asset Value	20%
C000028521 \| SectorConsumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	12.90%
C000028521 \| SectorFinancials
Holdings [Line Items]
Percent of Net Asset Value	7.90%
C000028521 \| SectorConsumer Staples
Holdings [Line Items]
Percent of Net Asset Value	4.20%
C000028521 \| SectorEnergy
Holdings [Line Items]
Percent of Net Asset Value	3.60%
C000028521 \| SectorMaterials
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000028521 \| SectorInvestment Companies
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028521 \| SectorReal Estate
Holdings [Line Items]
Percent of Net Asset Value	1%
C000028521 \| SectorShort-Term Investments
Holdings [Line Items]
Percent of Net Asset Value	3.90%
C000028521 \| Sector Other Net Line
Holdings [Line Items]
Percent of Net Asset Value	(2.50%)
C000028523 \| SPS Commerce, Inc.FR_78463M107
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000028523 \| SPX Technologies, Inc.FR_78473E103
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000028523 \| FabrinetFR_G3323L100
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000028523 \| Modine Manufacturing Co.FR_607828100
Holdings [Line Items]
Percent of Net Asset Value	1.70%
C000028523 \| Boot Barn Holdings, Inc.FR_099406100
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028523 \| CSW Industrials, Inc.FR_126402106
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028523 \| iShares Russell 2000 Growth ETFFR_464287648
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028523 \| Construction Partners, Inc.FR_21044C107
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028523 \| StepStone Group, Inc.FR_85914M107
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028523 \| PROCEPT BioRobotics Corp.FR_74276L105
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028523 \| SectorInformation Technology
Holdings [Line Items]
Percent of Net Asset Value	23.20%
C000028523 \| SectorHealth Care
Holdings [Line Items]
Percent of Net Asset Value	22.10%
C000028523 \| SectorIndustrials
Holdings [Line Items]
Percent of Net Asset Value	20%
C000028523 \| SectorConsumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	12.90%
C000028523 \| SectorFinancials
Holdings [Line Items]
Percent of Net Asset Value	7.90%
C000028523 \| SectorConsumer Staples
Holdings [Line Items]
Percent of Net Asset Value	4.20%
C000028523 \| SectorEnergy
Holdings [Line Items]
Percent of Net Asset Value	3.60%
C000028523 \| SectorMaterials
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000028523 \| SectorInvestment Companies
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028523 \| SectorReal Estate
Holdings [Line Items]
Percent of Net Asset Value	1%
C000028523 \| SectorShort-Term Investments
Holdings [Line Items]
Percent of Net Asset Value	3.90%
C000028523 \| Sector Other Net Line
Holdings [Line Items]
Percent of Net Asset Value	(2.50%)
C000028527 \| SPS Commerce, Inc.FR_78463M107
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000028527 \| SPX Technologies, Inc.FR_78473E103
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000028527 \| FabrinetFR_G3323L100
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000028527 \| Modine Manufacturing Co.FR_607828100
Holdings [Line Items]
Percent of Net Asset Value	1.70%
C000028527 \| Boot Barn Holdings, Inc.FR_099406100
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028527 \| CSW Industrials, Inc.FR_126402106
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028527 \| iShares Russell 2000 Growth ETFFR_464287648
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028527 \| Construction Partners, Inc.FR_21044C107
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028527 \| StepStone Group, Inc.FR_85914M107
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028527 \| PROCEPT BioRobotics Corp.FR_74276L105
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028527 \| SectorInformation Technology
Holdings [Line Items]
Percent of Net Asset Value	23.20%
C000028527 \| SectorHealth Care
Holdings [Line Items]
Percent of Net Asset Value	22.10%
C000028527 \| SectorIndustrials
Holdings [Line Items]
Percent of Net Asset Value	20%
C000028527 \| SectorConsumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	12.90%
C000028527 \| SectorFinancials
Holdings [Line Items]
Percent of Net Asset Value	7.90%
C000028527 \| SectorConsumer Staples
Holdings [Line Items]
Percent of Net Asset Value	4.20%
C000028527 \| SectorEnergy
Holdings [Line Items]
Percent of Net Asset Value	3.60%
C000028527 \| SectorMaterials
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000028527 \| SectorInvestment Companies
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028527 \| SectorReal Estate
Holdings [Line Items]
Percent of Net Asset Value	1%
C000028527 \| SectorShort-Term Investments
Holdings [Line Items]
Percent of Net Asset Value	3.90%
C000028527 \| Sector Other Net Line
Holdings [Line Items]
Percent of Net Asset Value	(2.50%)
C000028526 \| SPS Commerce, Inc.FR_78463M107
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000028526 \| SPX Technologies, Inc.FR_78473E103
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000028526 \| FabrinetFR_G3323L100
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000028526 \| Modine Manufacturing Co.FR_607828100
Holdings [Line Items]
Percent of Net Asset Value	1.70%
C000028526 \| Boot Barn Holdings, Inc.FR_099406100
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028526 \| CSW Industrials, Inc.FR_126402106
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028526 \| iShares Russell 2000 Growth ETFFR_464287648
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028526 \| Construction Partners, Inc.FR_21044C107
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028526 \| StepStone Group, Inc.FR_85914M107
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028526 \| PROCEPT BioRobotics Corp.FR_74276L105
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028526 \| SectorInformation Technology
Holdings [Line Items]
Percent of Net Asset Value	23.20%
C000028526 \| SectorHealth Care
Holdings [Line Items]
Percent of Net Asset Value	22.10%
C000028526 \| SectorIndustrials
Holdings [Line Items]
Percent of Net Asset Value	20%
C000028526 \| SectorConsumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	12.90%
C000028526 \| SectorFinancials
Holdings [Line Items]
Percent of Net Asset Value	7.90%
C000028526 \| SectorConsumer Staples
Holdings [Line Items]
Percent of Net Asset Value	4.20%
C000028526 \| SectorEnergy
Holdings [Line Items]
Percent of Net Asset Value	3.60%
C000028526 \| SectorMaterials
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000028526 \| SectorInvestment Companies
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028526 \| SectorReal Estate
Holdings [Line Items]
Percent of Net Asset Value	1%
C000028526 \| SectorShort-Term Investments
Holdings [Line Items]
Percent of Net Asset Value	3.90%
C000028526 \| Sector Other Net Line
Holdings [Line Items]
Percent of Net Asset Value	(2.50%)
C000028525 \| SPS Commerce, Inc.FR_78463M107
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000028525 \| SPX Technologies, Inc.FR_78473E103
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000028525 \| FabrinetFR_G3323L100
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000028525 \| Modine Manufacturing Co.FR_607828100
Holdings [Line Items]
Percent of Net Asset Value	1.70%
C000028525 \| Boot Barn Holdings, Inc.FR_099406100
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028525 \| CSW Industrials, Inc.FR_126402106
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028525 \| iShares Russell 2000 Growth ETFFR_464287648
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028525 \| Construction Partners, Inc.FR_21044C107
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028525 \| StepStone Group, Inc.FR_85914M107
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028525 \| PROCEPT BioRobotics Corp.FR_74276L105
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028525 \| SectorInformation Technology
Holdings [Line Items]
Percent of Net Asset Value	23.20%
C000028525 \| SectorHealth Care
Holdings [Line Items]
Percent of Net Asset Value	22.10%
C000028525 \| SectorIndustrials
Holdings [Line Items]
Percent of Net Asset Value	20%
C000028525 \| SectorConsumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	12.90%
C000028525 \| SectorFinancials
Holdings [Line Items]
Percent of Net Asset Value	7.90%
C000028525 \| SectorConsumer Staples
Holdings [Line Items]
Percent of Net Asset Value	4.20%
C000028525 \| SectorEnergy
Holdings [Line Items]
Percent of Net Asset Value	3.60%
C000028525 \| SectorMaterials
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000028525 \| SectorInvestment Companies
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000028525 \| SectorReal Estate
Holdings [Line Items]
Percent of Net Asset Value	1%
C000028525 \| SectorShort-Term Investments
Holdings [Line Items]
Percent of Net Asset Value	3.90%
C000028525 \| Sector Other Net Line
Holdings [Line Items]
Percent of Net Asset Value	(2.50%)
C000159958 \| SPS Commerce, Inc.FR_78463M107
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000159958 \| SPX Technologies, Inc.FR_78473E103
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000159958 \| FabrinetFR_G3323L100
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000159958 \| Modine Manufacturing Co.FR_607828100
Holdings [Line Items]
Percent of Net Asset Value	1.70%
C000159958 \| Boot Barn Holdings, Inc.FR_099406100
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000159958 \| CSW Industrials, Inc.FR_126402106
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000159958 \| iShares Russell 2000 Growth ETFFR_464287648
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000159958 \| Construction Partners, Inc.FR_21044C107
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000159958 \| StepStone Group, Inc.FR_85914M107
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000159958 \| PROCEPT BioRobotics Corp.FR_74276L105
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000159958 \| SectorInformation Technology
Holdings [Line Items]
Percent of Net Asset Value	23.20%
C000159958 \| SectorHealth Care
Holdings [Line Items]
Percent of Net Asset Value	22.10%
C000159958 \| SectorIndustrials
Holdings [Line Items]
Percent of Net Asset Value	20%
C000159958 \| SectorConsumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	12.90%
C000159958 \| SectorFinancials
Holdings [Line Items]
Percent of Net Asset Value	7.90%
C000159958 \| SectorConsumer Staples
Holdings [Line Items]
Percent of Net Asset Value	4.20%
C000159958 \| SectorEnergy
Holdings [Line Items]
Percent of Net Asset Value	3.60%
C000159958 \| SectorMaterials
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000159958 \| SectorInvestment Companies
Holdings [Line Items]
Percent of Net Asset Value	1.60%
C000159958 \| SectorReal Estate
Holdings [Line Items]
Percent of Net Asset Value	1%
C000159958 \| SectorShort-Term Investments
Holdings [Line Items]
Percent of Net Asset Value	3.90%
C000159958 \| Sector Other Net Line
Holdings [Line Items]
Percent of Net Asset Value	(2.50%)