| Form N-CSR Cover | 12 Months Ended |
| May 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | BlackRock Funds |
| Entity Central Index Key | 0000844779 |
| Document Period End Date | May 31, 2024 |
| Shareholder Report | 12 Months Ended |
| May 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | BlackRock Funds |
| Entity Central Index Key | 0000844779 |
| Document Period End Date | May 31, 2024 |
| C000166019 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Sustainable Advantage Large Cap Core Fund |
| Class Name | Class K Shares |
| Trading Symbol | BIRKX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Sustainable Advantage Large Cap Core Fund (the “Fund”) for the period of June 1, 2023 to May 31, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports . |
| Additional Information Phone Number | (800) 441‑7762 |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 Costs paid as a percentage of a Class K Shares $ 0.43 % |
| Expenses Paid, Amount | $ 49 |
| Expense Ratio, Percent | 0.43% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? Equities produced strong performance behind resilient economic data and excitement about innovation in information technology and healthcare. Market performance was also characterized by shifting views between hopes for a soft landing in the economy and concerns that interest rates would need to stay higher for longer. What contributed to performance? The Fund’s performance was driven by stock selection insights that identified and capitalized on the dominant trends during the reporting period. These insights initially aligned with expectations for a soft landing throughout 2023 while continuing to motivate positioning across the artificial intelligence (“A.I.”) and GLP-1 weight loss themes. More broadly, sentiment measures identifying trends in analyst and executive comments, as well as macro thematic insights measuring hiring trends and business-to-business invoicing, were key performance drivers. Fundamental measures also contributed, with both quality and valuation measures helping results as the markets increasingly discerned A.I. winners and losers. Insights designed to evaluate the sustainability of companies’ growth and ability to source financing contributed. Select nontraditional measures of quality, such as environmental, social and governance (“ESG”) insights with a focus on hiring practices, also added value. Concern about the regional banking sector was another market theme where the Fund was correctly positioned, as quality measures identified the challenges associated with stocks exposed to the weakening commercial real estate sector. What detracted from performance? Despite the Fund’s strong gains, select stock selection measures struggled. Sustainability-related metrics with a focus on environmental efficiency lagged, as did measures related to employee satisfaction. Measures designed to capture consumer intent also detracted, although sentiment measures contributed in the aggregate. Alternative data insights evaluating mobile app usage and product trends detracted, as well. The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: October 5, 2015 through May 31, 2024 Initial investment of $10,000 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns 1 Year 5 Years Since Class K Shares 29.30 % 15.82 % 14.03 % Russell 1000 ® 28.01 % 15.42 % 13.70 % |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| Net Assets | $ 840,269,547 |
| Holdings Count | Holding | 204 |
| Advisory Fees Paid, Amount | $ 4,108,295 |
| Investment Company Portfolio Turnover | 108% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ % Number of Portfolio Holdings $ % Net Investment Advisory Fees $ % Portfolio Turnover Rate $ % |
| Holdings [Text Block] | What did the Fund invest in? (as of May 31, 2024) Sector allocation Sector (a) Percent of Information Technology 30.0 % Health Care 12.8 % Financials 12.5 % Consumer Discretionary 10.9 % Industrials 10.4 % Communication Services 9.9 % Consumer Staples 4.8 % Energy 2.8 % Real Estate 2.2 % Utilities 1.7 % Materials 1.5 % Short-Term Securities 0.5 % Liabilities in Excess of Other Assets ( — (b) Ten largest holdings Security (c) Percent of Microsoft Corp. 7.4 % Apple, Inc. 6.4 % NVIDIA Corp. 6.0 % Amazon.com, Inc. 4.3 % Alphabet, Inc., Class A 3.1 % Eli Lilly & Co. 2.0 % Mastercard, Inc., Class A 1.9 % Meta Platforms, Inc., Class A 1.8 % Alphabet, Inc., Class C 1.8 % Home Depot, Inc. 1.8 % (a) (b) (c) For purposes of this report, sector sub-classifications may differ from those utilized for compliance purposes. (a) (b) (c) Rounds to greater than (0.1)%. (a) (b) (c) Excludes short-term securities. |
| Largest Holdings [Text Block] | Ten largest holdings Security (c) Percent of Microsoft Corp. 7.4 % Apple, Inc. 6.4 % NVIDIA Corp. 6.0 % Amazon.com, Inc. 4.3 % Alphabet, Inc., Class A 3.1 % Eli Lilly & Co. 2.0 % Mastercard, Inc., Class A 1.9 % Meta Platforms, Inc., Class A 1.8 % Alphabet, Inc., Class C 1.8 % Home Depot, Inc. 1.8 % |
| C000160934 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Sustainable Advantage Large Cap Core Fund |
| Class Name | Investor A Shares |
| Trading Symbol | BIRAX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Sustainable Advantage Large Cap Core Fund (the “Fund”) for the period of June 1, 2023 to May 31, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports . |
| Additional Information Phone Number | (800) 441‑7762 |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 Costs paid as a percentage of a Investor A Shares $ 0.73 % |
| Expenses Paid, Amount | $ 84 |
| Expense Ratio, Percent | 0.73% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? Equities produced strong performance behind resilient economic data and excitement about innovation in information technology and healthcare. Market performance was also characterized by shifting views between hopes for a soft landing in the economy and concerns that interest rates would need to stay higher for longer. What contributed to performance? The Fund’s performance was driven by stock selection insights that identified and capitalized on the dominant trends during the reporting period. These insights initially aligned with expectations for a soft landing throughout 2023 while continuing to motivate positioning across the artificial intelligence (“A.I.”) and GLP-1 weight loss themes. More broadly, sentiment measures identifying trends in analyst and executive comments, as well as macro thematic insights measuring hiring trends and business-to-business invoicing, were key performance drivers. Fundamental measures also contributed, with both quality and valuation measures helping results as the markets increasingly discerned A.I. winners and losers. Insights designed to evaluate the sustainability of companies’ growth and ability to source financing contributed. Select nontraditional measures of quality, such as environmental, social and governance (“ESG”) insights with a focus on hiring practices, also added value. Concern about the regional banking sector was another market theme where the Fund was correctly positioned, as quality measures identified the challenges associated with stocks exposed to the weakening commercial real estate sector. What detracted from performance? Despite the Fund’s strong gains, select stock selection measures struggled. Sustainability-related metrics with a focus on environmental efficiency lagged, as did measures related to employee satisfaction. Measures designed to capture consumer intent also detracted, although sentiment measures contributed in the aggregate. Alternative data insights evaluating mobile app usage and product trends detracted, as well. The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: October 5, 2015 through May 31, 2024 Initial investment of $10,000 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns 1 Year 5 Years Since Investor A Shares 28.90 % 15.47 % 13.69 % Investor A Shares (with sales charge) 22.14 % 14.23 % 12.99 % Russell 1000 ® 28.01 % 15.42 % 13.70 % |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| Net Assets | $ 840,269,547 |
| Holdings Count | Holding | 204 |
| Advisory Fees Paid, Amount | $ 4,108,295 |
| Investment Company Portfolio Turnover | 108% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ % Number of Portfolio Holdings $ % Net Investment Advisory Fees $ % Portfolio Turnover Rate $ % |
| Holdings [Text Block] | What did the Fund invest in? (as of May 31, 2024) Sector allocation Sector (a) Percent of Information Technology 30.0 % Health Care 12.8 % Financials 12.5 % Consumer Discretionary 10.9 % Industrials 10.4 % Communication Services 9.9 % Consumer Staples 4.8 % Energy 2.8 % Real Estate 2.2 % Utilities 1.7 % Materials 1.5 % Short-Term Securities 0.5 % Liabilities in Excess of Other Assets ( — (b) Ten largest holdings Security (c) Percent of Microsoft Corp. 7.4 % Apple, Inc. 6.4 % NVIDIA Corp. 6.0 % Amazon.com, Inc. 4.3 % Alphabet, Inc., Class A 3.1 % Eli Lilly & Co. 2.0 % Mastercard, Inc., Class A 1.9 % Meta Platforms, Inc., Class A 1.8 % Alphabet, Inc., Class C 1.8 % Home Depot, Inc. 1.8 % (a) (b) (c) For purposes of this report, sector sub-classifications may differ from those utilized for compliance purposes. (a) (b) (c) Rounds to greater than (0.1)%. (a) (b) (c) Excludes short-term securities. |
| Largest Holdings [Text Block] | Ten largest holdings Security (c) Percent of Microsoft Corp. 7.4 % Apple, Inc. 6.4 % NVIDIA Corp. 6.0 % Amazon.com, Inc. 4.3 % Alphabet, Inc., Class A 3.1 % Eli Lilly & Co. 2.0 % Mastercard, Inc., Class A 1.9 % Meta Platforms, Inc., Class A 1.8 % Alphabet, Inc., Class C 1.8 % Home Depot, Inc. 1.8 % |
| C000160935 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Sustainable Advantage Large Cap Core Fund |
| Class Name | Investor C Shares |
| Trading Symbol | BIRCX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Sustainable Advantage Large Cap Core Fund (the “Fund”) for the period of June 1, 2023 to May 31, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports . |
| Additional Information Phone Number | (800) 441‑7762 |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 Costs paid as a percentage of a Investor C Shares $ 1.48 % |
| Expenses Paid, Amount | $ 169 |
| Expense Ratio, Percent | 1.48% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? Equities produced strong performance behind resilient economic data and excitement about innovation in information technology and healthcare. Market performance was also characterized by shifting views between hopes for a soft landing in the economy and concerns that interest rates would need to stay higher for longer. What contributed to performance? The Fund’s performance was driven by stock selection insights that identified and capitalized on the dominant trends during the reporting period. These insights initially aligned with expectations for a soft landing throughout 2023 while continuing to motivate positioning across the artificial intelligence (“A.I.”) and GLP-1 weight loss themes. More broadly, sentiment measures identifying trends in analyst and executive comments, as well as macro thematic insights measuring hiring trends and business-to-business invoicing, were key performance drivers. Fundamental measures also contributed, with both quality and valuation measures helping results as the markets increasingly discerned A.I. winners and losers. Insights designed to evaluate the sustainability of companies’ growth and ability to source financing contributed. Select nontraditional measures of quality, such as environmental, social and governance (“ESG”) insights with a focus on hiring practices, also added value. Concern about the regional banking sector was another market theme where the Fund was correctly positioned, as quality measures identified the challenges associated with stocks exposed to the weakening commercial real estate sector. What detracted from performance? Despite the Fund’s strong gains, select stock selection measures struggled. Sustainability-related metrics with a focus on environmental efficiency lagged, as did measures related to employee satisfaction. Measures designed to capture consumer intent also detracted, although sentiment measures contributed in the aggregate. Alternative data insights evaluating mobile app usage and product trends detracted, as well. The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: October 5, 2015 through May 31, 2024 Initial investment of $10,000 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns 1 Year 5 Years Since Investor C Shares 28.01 % 14.63 % 12.92 % Investor C Shares (with sales charge) 27.01 % 14.63 % 12.92 % Russell 1000 ® 28.01 % 15.42 % 13.70 % |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| Net Assets | $ 840,269,547 |
| Holdings Count | Holding | 204 |
| Advisory Fees Paid, Amount | $ 4,108,295 |
| Investment Company Portfolio Turnover | 108% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ % Number of Portfolio Holdings $ % Net Investment Advisory Fees $ % Portfolio Turnover Rate $ % |
| Holdings [Text Block] | What did the Fund invest in? (as of May 31, 2024) Sector allocation Sector (a) Percent of Information Technology 30.0 % Health Care 12.8 % Financials 12.5 % Consumer Discretionary 10.9 % Industrials 10.4 % Communication Services 9.9 % Consumer Staples 4.8 % Energy 2.8 % Real Estate 2.2 % Utilities 1.7 % Materials 1.5 % Short-Term Securities 0.5 % Liabilities in Excess of Other Assets ( — (b) Ten largest holdings Security (c) Percent of Microsoft Corp. 7.4 % Apple, Inc. 6.4 % NVIDIA Corp. 6.0 % Amazon.com, Inc. 4.3 % Alphabet, Inc., Class A 3.1 % Eli Lilly & Co. 2.0 % Mastercard, Inc., Class A 1.9 % Meta Platforms, Inc., Class A 1.8 % Alphabet, Inc., Class C 1.8 % Home Depot, Inc. 1.8 % (a) (b) (c) For purposes of this report, sector sub-classifications may differ from those utilized for compliance purposes. (a) (b) (c) Rounds to greater than (0.1)%. (a) (b) (c) Excludes short-term securities. |
| Largest Holdings [Text Block] | Ten largest holdings Security (c) Percent of Microsoft Corp. 7.4 % Apple, Inc. 6.4 % NVIDIA Corp. 6.0 % Amazon.com, Inc. 4.3 % Alphabet, Inc., Class A 3.1 % Eli Lilly & Co. 2.0 % Mastercard, Inc., Class A 1.9 % Meta Platforms, Inc., Class A 1.8 % Alphabet, Inc., Class C 1.8 % Home Depot, Inc. 1.8 % |
| C000160936 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock Sustainable Advantage Large Cap Core Fund |
| Class Name | Institutional Shares |
| Trading Symbol | BIRIX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BlackRock Sustainable Advantage Large Cap Core Fund (the “Fund”) for the period of June 1, 2023 to May 31, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports . |
| Additional Information Phone Number | (800) 441‑7762 |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 Costs paid as a percentage of a Institutional Shares $ 0.48 % |
| Expenses Paid, Amount | $ 55 |
| Expense Ratio, Percent | 0.48% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? Equities produced strong performance behind resilient economic data and excitement about innovation in information technology and healthcare. Market performance was also characterized by shifting views between hopes for a soft landing in the economy and concerns that interest rates would need to stay higher for longer. What contributed to performance? The Fund’s performance was driven by stock selection insights that identified and capitalized on the dominant trends during the reporting period. These insights initially aligned with expectations for a soft landing throughout 2023 while continuing to motivate positioning across the artificial intelligence (“A.I.”) and GLP-1 weight loss themes. More broadly, sentiment measures identifying trends in analyst and executive comments, as well as macro thematic insights measuring hiring trends and business-to-business invoicing, were key performance drivers. Fundamental measures also contributed, with both quality and valuation measures helping results as the markets increasingly discerned A.I. winners and losers. Insights designed to evaluate the sustainability of companies’ growth and ability to source financing contributed. Select nontraditional measures of quality, such as environmental, social and governance (“ESG”) insights with a focus on hiring practices, also added value. Concern about the regional banking sector was another market theme where the Fund was correctly positioned, as quality measures identified the challenges associated with stocks exposed to the weakening commercial real estate sector. What detracted from performance? Despite the Fund’s strong gains, select stock selection measures struggled. Sustainability-related metrics with a focus on environmental efficiency lagged, as did measures related to employee satisfaction. Measures designed to capture consumer intent also detracted, although sentiment measures contributed in the aggregate. Alternative data insights evaluating mobile app usage and product trends detracted, as well. The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: October 5, 2015 through May 31, 2024 Initial investment of $10,000 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns 1 Year 5 Years Since Institutional Shares 29.27 % 15.76 % 13.98 % Russell 1000 ® 28.01 % 15.42 % 13.70 % |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| Net Assets | $ 840,269,547 |
| Holdings Count | Holding | 204 |
| Advisory Fees Paid, Amount | $ 4,108,295 |
| Investment Company Portfolio Turnover | 108% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets $ % Number of Portfolio Holdings $ % Net Investment Advisory Fees $ % Portfolio Turnover Rate $ % |
| Holdings [Text Block] | What did the Fund invest in? (as of May 31, 2024) Sector allocation Sector (a) Percent of Information Technology 30.0 % Health Care 12.8 % Financials 12.5 % Consumer Discretionary 10.9 % Industrials 10.4 % Communication Services 9.9 % Consumer Staples 4.8 % Energy 2.8 % Real Estate 2.2 % Utilities 1.7 % Materials 1.5 % Short-Term Securities 0.5 % Liabilities in Excess of Other Assets ( — (b) Ten largest holdings Security (c) Percent of Microsoft Corp. 7.4 % Apple, Inc. 6.4 % NVIDIA Corp. 6.0 % Amazon.com, Inc. 4.3 % Alphabet, Inc., Class A 3.1 % Eli Lilly & Co. 2.0 % Mastercard, Inc., Class A 1.9 % Meta Platforms, Inc., Class A 1.8 % Alphabet, Inc., Class C 1.8 % Home Depot, Inc. 1.8 % (a) (b) (c) For purposes of this report, sector sub-classifications may differ from those utilized for compliance purposes. (a) (b) (c) Rounds to greater than (0.1)%. (a) (b) (c) Excludes short-term securities. |
| Largest Holdings [Text Block] | Ten largest holdings Security (c) Percent of Microsoft Corp. 7.4 % Apple, Inc. 6.4 % NVIDIA Corp. 6.0 % Amazon.com, Inc. 4.3 % Alphabet, Inc., Class A 3.1 % Eli Lilly & Co. 2.0 % Mastercard, Inc., Class A 1.9 % Meta Platforms, Inc., Class A 1.8 % Alphabet, Inc., Class C 1.8 % Home Depot, Inc. 1.8 % |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | 60 Months Ended | 104 Months Ended | ||||||||
| May 31, 2024 | May 31, 2024 | May 31, 2024 | May 31, 2023 | May 31, 2022 | May 31, 2021 | May 31, 2020 | May 31, 2019 | May 31, 2018 | May 31, 2017 | May 31, 2016 | |
| C000166019 [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class K Shares | ||||||||||
| Account Value | $ 31,163 | $ 31,163 | $ 31,163 | $ 24,101 | $ 23,761 | $ 24,444 | $ 16,792 | $ 14,956 | $ 14,593 | $ 12,508 | $ 10,558 |
| Average Annual Return, Percent | 29.30% | 15.82% | 14.03% | ||||||||
| C000160934 [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Investor A Shares (with sales charge) | ||||||||||
| Account Value | $ 28,772 | $ 28,772 | $ 28,772 | 22,321 | 22,074 | 22,777 | 15,693 | 14,016 | 13,724 | 11,793 | 9,991 |
| Average Annual Return, Percent | 22.14% | 14.23% | 12.99% | ||||||||
| C000160934 [Member] | Without Sales Load [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Investor A Shares | ||||||||||
| Average Annual Return, Percent | 28.90% | 15.47% | 13.69% | ||||||||
| C000160935 [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Investor C Shares (with sales charge) | ||||||||||
| Account Value | $ 28,623 | $ 28,623 | $ 28,623 | 22,256 | 22,184 | 23,057 | 15,997 | 14,397 | 14,201 | 12,301 | 10,492 |
| Average Annual Return, Percent | 27.01% | 14.63% | 12.92% | ||||||||
| C000160935 [Member] | Without Sales Load [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Investor C Shares | ||||||||||
| Average Annual Return, Percent | 28.01% | 14.63% | 12.92% | ||||||||
| C000160936 [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Institutional Shares | ||||||||||
| Account Value | $ 31,042 | $ 31,042 | $ 31,042 | 24,013 | 23,687 | 24,389 | 16,759 | 14,931 | 14,588 | 12,496 | 10,558 |
| Average Annual Return, Percent | 29.27% | 15.76% | 13.98% | ||||||||
| Russell 1000 Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Russell 1000® Index | ||||||||||
| Account Value | $ 30,381 | $ 30,381 | $ 30,381 | $ 23,734 | $ 23,167 | $ 23,811 | $ 16,691 | $ 14,831 | $ 14,334 | $ 12,509 | $ 10,648 |
| Average Annual Return, Percent | 28.01% | 15.42% | 13.70% |
| Shareholder Report, Holdings (Details) | May 31, 2024 | |
| C000166019 [Member] | Alphabet Inc Class A [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.10% | [1] |
| C000166019 [Member] | Amazon com Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | [1] |
| C000166019 [Member] | Alphabet Inc Class C [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | [1] |
| C000166019 [Member] | Meta Platforms Inc Class A [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | [1] |
| C000166019 [Member] | Mastercard Inc Class A [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.90% | [1] |
| C000166019 [Member] | NVIDIA Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6% | [1] |
| C000166019 [Member] | Apple Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.40% | [1] |
| C000166019 [Member] | Microsoft Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.40% | [1] |
| C000166019 [Member] | Home Depot Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | [1] |
| C000166019 [Member] | Eli Lilly And Co [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2% | [1] |
| C000166019 [Member] | Communications Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.90% | [2] |
| C000166019 [Member] | Real Estate Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.20% | [2] |
| C000166019 [Member] | Consumer Discretionary Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.90% | [2] |
| C000166019 [Member] | Utilities Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.70% | [2] |
| C000166019 [Member] | Information Technology Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 30% | [2] |
| C000166019 [Member] | Financials [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 12.50% | [2] |
| C000166019 [Member] | Industrial Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.40% | [2] |
| C000166019 [Member] | Materials Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [2] |
| C000166019 [Member] | Healthcare Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 12.80% | [2] |
| C000166019 [Member] | Consumer Staples Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.80% | [2] |
| C000166019 [Member] | Energy Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.80% | [2] |
| C000166019 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | [2],[3] | |
| C000166019 [Member] | Short Term Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.50% | [2] |
| C000160934 [Member] | Alphabet Inc Class A [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.10% | [4] |
| C000160934 [Member] | Amazon com Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | [4] |
| C000160934 [Member] | Alphabet Inc Class C [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | [4] |
| C000160934 [Member] | Meta Platforms Inc Class A [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | [4] |
| C000160934 [Member] | Mastercard Inc Class A [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.90% | [4] |
| C000160934 [Member] | NVIDIA Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6% | [4] |
| C000160934 [Member] | Apple Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.40% | [4] |
| C000160934 [Member] | Microsoft Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.40% | [4] |
| C000160934 [Member] | Home Depot Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | [4] |
| C000160934 [Member] | Eli Lilly And Co [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2% | [4] |
| C000160934 [Member] | Communications Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.90% | [5] |
| C000160934 [Member] | Real Estate Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.20% | [5] |
| C000160934 [Member] | Consumer Discretionary Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.90% | [5] |
| C000160934 [Member] | Utilities Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.70% | [5] |
| C000160934 [Member] | Information Technology Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 30% | [5] |
| C000160934 [Member] | Financials [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 12.50% | [5] |
| C000160934 [Member] | Industrial Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.40% | [5] |
| C000160934 [Member] | Materials Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [5] |
| C000160934 [Member] | Healthcare Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 12.80% | [5] |
| C000160934 [Member] | Consumer Staples Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.80% | [5] |
| C000160934 [Member] | Energy Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.80% | [5] |
| C000160934 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | [5],[6] | |
| C000160934 [Member] | Short Term Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.50% | [5] |
| C000160935 [Member] | Alphabet Inc Class A [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.10% | [7] |
| C000160935 [Member] | Amazon com Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | [7] |
| C000160935 [Member] | Alphabet Inc Class C [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | [7] |
| C000160935 [Member] | Meta Platforms Inc Class A [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | [7] |
| C000160935 [Member] | Mastercard Inc Class A [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.90% | [7] |
| C000160935 [Member] | NVIDIA Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6% | [7] |
| C000160935 [Member] | Apple Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.40% | [7] |
| C000160935 [Member] | Microsoft Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.40% | [7] |
| C000160935 [Member] | Home Depot Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | [7] |
| C000160935 [Member] | Eli Lilly And Co [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2% | [7] |
| C000160935 [Member] | Communications Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.90% | [8] |
| C000160935 [Member] | Real Estate Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.20% | [8] |
| C000160935 [Member] | Consumer Discretionary Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.90% | [8] |
| C000160935 [Member] | Utilities Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.70% | [8] |
| C000160935 [Member] | Information Technology Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 30% | [8] |
| C000160935 [Member] | Financials [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 12.50% | [8] |
| C000160935 [Member] | Industrial Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.40% | [8] |
| C000160935 [Member] | Materials Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [8] |
| C000160935 [Member] | Healthcare Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 12.80% | [8] |
| C000160935 [Member] | Consumer Staples Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.80% | [8] |
| C000160935 [Member] | Energy Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.80% | [8] |
| C000160935 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | [8],[9] | |
| C000160935 [Member] | Short Term Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.50% | [8] |
| C000160936 [Member] | Alphabet Inc Class A [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 3.10% | [10] |
| C000160936 [Member] | Amazon com Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.30% | [10] |
| C000160936 [Member] | Alphabet Inc Class C [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | [10] |
| C000160936 [Member] | Meta Platforms Inc Class A [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | [10] |
| C000160936 [Member] | Mastercard Inc Class A [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.90% | [10] |
| C000160936 [Member] | NVIDIA Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6% | [10] |
| C000160936 [Member] | Apple Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.40% | [10] |
| C000160936 [Member] | Microsoft Corp [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 7.40% | [10] |
| C000160936 [Member] | Home Depot Inc [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.80% | [10] |
| C000160936 [Member] | Eli Lilly And Co [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2% | [10] |
| C000160936 [Member] | Communications Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 9.90% | [11] |
| C000160936 [Member] | Real Estate Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.20% | [11] |
| C000160936 [Member] | Consumer Discretionary Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.90% | [11] |
| C000160936 [Member] | Utilities Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.70% | [11] |
| C000160936 [Member] | Information Technology Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 30% | [11] |
| C000160936 [Member] | Financials [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 12.50% | [11] |
| C000160936 [Member] | Industrial Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 10.40% | [11] |
| C000160936 [Member] | Materials Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.50% | [11] |
| C000160936 [Member] | Healthcare Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 12.80% | [11] |
| C000160936 [Member] | Consumer Staples Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 4.80% | [11] |
| C000160936 [Member] | Energy Sector [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.80% | [11] |
| C000160936 [Member] | Liabilities in Excess of Other Assets [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | [11],[12] | |
| C000160936 [Member] | Short Term Securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.50% | [11] |
| [1]Excludes short-term securities.[2]For purposes of this report, sector sub-classifications may differ from those utilized for compliance purposes.[3]Rounds to greater than (0.1)%.[4]Excludes short-term securities.[5]For purposes of this report, sector sub-classifications may differ from those utilized for compliance purposes.[6]Rounds to greater than (0.1)%.[7]Excludes short-term securities.[8]For purposes of this report, sector sub-classifications may differ from those utilized for compliance purposes.[9]Rounds to greater than (0.1)%.[10]Excludes short-term securities.[11]For purposes of this report, sector sub-classifications may differ from those utilized for compliance purposes.[12]Rounds to greater than (0.1)%. | ||
