| Form N-CSR Cover | 6 Months Ended |
| Oct. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | Managed Account Series II |
| Entity Central Index Key | 0001738079 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| Shareholder Report | 6 Months Ended |
| Oct. 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | Managed Account Series II |
| Entity Central Index Key | 0001738079 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| C000202320 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock U.S. Mortgage Portfolio |
| Class Name | Institutional Shares |
| Trading Symbol | MSUMX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock U.S. Mortgage Portfolio (the “Fund”) for the period of May 1, 2024 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Institutional Shares $24 0.45% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 24 |
| Expense Ratio, Percent | 0.45% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year 5 Years 10 Years Institutional Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.44 % 14.00 % 1.09 % 2.04 % Bloomberg U.S. Aggregate Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.31 10.55 (0.23 ) 1.49 Bloomberg U.S. Mortgage-Backed Securities Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.81 11.44 (0.60 ) 1.02 |
| 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. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 418,232,651 |
| Holdings Count | Holding | 817 |
| InvestmentCompanyPortfolioTurnover | 163% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $418,232,651 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 817 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 163% |
| Holdings [Text Block] | Portfolio composition Credit quality allocation Investment Type Percent of Total Investments Footnote Reference U.S. Government Sponsored Agency Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 46.7 % Non-Agency Mortgage-Backed Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 38.8 Asset-Backed Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.4 Corporate Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.1 Credit Rating Footnote Reference Percent of Total Investments Footnote Reference AAA/ Aaa Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 48.0 % AA/Aa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.7 A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.5 BBB/Baa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.1 BB/Ba ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.2 B ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.6 CCC/Caa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.2 CC/Ca ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 C ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.2 D ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference N/R ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.6 Footnote Description Footnote (a) Excludes short-term securities, short investments and options, if any. Footnote (b) For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (c) The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa. Footnote (d) Rounds to less than 0.1%. |
| C000202318 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock U.S. Mortgage Portfolio |
| Class Name | Investor A Shares |
| Trading Symbol | BMPAX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock U.S. Mortgage Portfolio (the “Fund”) for the period of May 1, 2024 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Investor A Shares $36 0.70% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 36 |
| Expense Ratio, Percent | 0.70% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year 5 Years 10 Years Investor A Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.20 % 13.60 % 0.84 % 1.78 % Investor A Shares (with sales charge) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.95 9.06 0.02 1.36 Bloomberg U.S. Aggregate Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.31 10.55 (0.23 ) 1.49 Bloomberg U.S. Mortgage-Backed Securities Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.81 11.44 (0.60 ) 1.02 |
| 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. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 418,232,651 |
| Holdings Count | Holding | 817 |
| InvestmentCompanyPortfolioTurnover | 163% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $418,232,651 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 817 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 163% |
| Holdings [Text Block] | Portfolio composition Credit quality allocation Investment Type Percent of Total Investments Footnote Reference U.S. Government Sponsored Agency Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 46.7 % Non-Agency Mortgage-Backed Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 38.8 Asset-Backed Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.4 Corporate Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.1 Credit Rating Footnote Reference Percent of Total Investments Footnote Reference AAA/ Aaa Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 48.0 % AA/Aa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.7 A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.5 BBB/Baa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.1 BB/Ba ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.2 B ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.6 CCC/Caa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.2 CC/Ca ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 C ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.2 D ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference N/R ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.6 Footnote Description Footnote (a) Excludes short-term securities, short investments and options, if any. Footnote (b) For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (c) The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa. Footnote (d) Rounds to less than 0.1%. |
| C000202319 | |
| Shareholder Report [Line Items] | |
| Fund Name | BlackRock U.S. Mortgage Portfolio |
| Class Name | Investor C Shares |
| Trading Symbol | BMPCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BlackRock U.S. Mortgage Portfolio (the “Fund”) for the period of May 1, 2024 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Semi-Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Material Fund Change Notice [Text Block] | |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last six months? (based on a hypothetical $10,000 investment) Class name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Investor C Shares $75 1.45% Footnote Reference Footnote Description Footnote (a) Annualized. |
| Expenses Paid, Amount | $ 75 |
| Expense Ratio, Percent | 1.45% |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 6-Month Total Returns 1 Year 5 Years 10 Years Investor C Shares ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.80 % 12.76 % 0.09 % 1.18 % Investor C Shares (with sales charge) ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.80 11.76 0.09 1.18 Bloomberg U.S. Aggregate Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.31 10.55 (0.23 ) 1.49 Bloomberg U.S. Mortgage-Backed Securities Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.81 11.44 (0.60 ) 1.02 |
| 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. |
| Performance Table Market Index Changed [Text Block] | |
| Material Change Description [Text Block] | |
| Updated Performance Information Location [Text Block] | Visit blackrock.com |
| AssetsNet | $ 418,232,651 |
| Holdings Count | Holding | 817 |
| InvestmentCompanyPortfolioTurnover | 163% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $418,232,651 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 817 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 163% |
| Holdings [Text Block] | Portfolio composition Credit quality allocation Investment Type Percent of Total Investments Footnote Reference U.S. Government Sponsored Agency Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 46.7 % Non-Agency Mortgage-Backed Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 38.8 Asset-Backed Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.4 Corporate Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.1 Credit Rating Footnote Reference Percent of Total Investments Footnote Reference AAA/ Aaa Footnote Reference ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 48.0 % AA/Aa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.7 A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.5 BBB/Baa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.1 BB/Ba ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.2 B ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.6 CCC/Caa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.2 CC/Ca ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 C ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.2 D ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference N/R ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.6 Footnote Description Footnote (a) Excludes short-term securities, short investments and options, if any. Footnote (b) For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (c) The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa. Footnote (d) Rounds to less than 0.1%. |
| Shareholder Report, Line Graph (Details) | 6 Months Ended |
| Oct. 31, 2024 | |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index |
| FR Notes - Benchmark total return 6 months w/o sales charge | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | Bloomberg U.S. Mortgage-Backed Securities Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | Bloomberg U.S. Mortgage-Backed Securities Index |
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | |
| Account Value [Line Items] | |
| Line Graph and Table Measure Name | Bloomberg U.S. Mortgage-Backed Securities Index |
| Shareholder Report, Average Annual Return (Details) | 6 Months Ended | 12 Months Ended | 60 Months Ended | 120 Months Ended |
| Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | |
| C000202318 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 1.95% | 9.06% | 0.02% | 1.36% |
| C000202319 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 4.80% | 11.76% | 0.09% | 1.18% |
| Without Sales Load [Member] | C000202320 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 6.44% | 14% | 1.09% | 2.04% |
| Without Sales Load [Member] | C000202318 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 6.20% | 13.60% | 0.84% | 1.78% |
| Without Sales Load [Member] | C000202319 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 5.80% | 12.76% | 0.09% | 1.18% |
| FR Notes - Benchmark total return 6 months w/o sales charge | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||
| Average Annual Return, Percent | 5.31% | |||
| FR Notes - Benchmark total return 1 year | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 10.55% | |||
| FR Notes - Benchmark total return 5 year | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | (0.23%) | |||
| FR Notes - Benchmark total return inception w/o sales charge | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 1.49% | |||
| FR Notes - Benchmark total return 6 months w/o sales charge | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||
| Average Annual Return, Percent | 5.31% | |||
| FR Notes - Benchmark total return 1 year | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 10.55% | |||
| FR Notes - Benchmark total return 5 year | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | (0.23%) | |||
| FR Notes - Benchmark total return inception w/o sales charge | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 1.49% | |||
| FR Notes - Benchmark total return 6 months w/o sales charge | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||
| Average Annual Return, Percent | 5.31% | |||
| FR Notes - Benchmark total return 1 year | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 10.55% | |||
| FR Notes - Benchmark total return 5 year | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | (0.23%) | |||
| FR Notes - Benchmark total return inception w/o sales charge | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 1.49% | |||
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Bloomberg U.S. Mortgage-Backed Securities Index | |||
| Average Annual Return, Percent | 5.81% | |||
| FR Notes - Benchmark total return 1 year - 2 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 11.44% | |||
| FR Notes - Benchmark total return 5 year - 2 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | (0.60%) | |||
| FR Notes - Benchmark total return 10 year - 2 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 1.02% | |||
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Bloomberg U.S. Mortgage-Backed Securities Index | |||
| Average Annual Return, Percent | 5.81% | |||
| FR Notes - Benchmark total return 1 year - 2 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 11.44% | |||
| FR Notes - Benchmark total return 5 year - 2 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | (0.60%) | |||
| FR Notes - Benchmark total return 10 year - 2 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 1.02% | |||
| FR Notes - Benchmark total return 6 months w/o sales charge - 2 | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Bloomberg U.S. Mortgage-Backed Securities Index | |||
| Average Annual Return, Percent | 5.81% | |||
| FR Notes - Benchmark total return 1 year - 2 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 11.44% | |||
| FR Notes - Benchmark total return 5 year - 2 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | (0.60%) | |||
| FR Notes - Benchmark total return 10 year - 2 | ||||
| Average Annual Return [Line Items] | ||||
| Average Annual Return, Percent | 1.02% |
| Shareholder Report, Holdings (Details) | Oct. 31, 2024 |
| C000202320 | AAA/Aaa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 48% |
| C000202320 | AA/Aa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 16.70% |
| C000202320 | A | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.50% |
| C000202320 | BBB/Baa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.10% |
| C000202320 | BB/Ba | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.20% |
| C000202320 | B | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.60% |
| C000202320 | CCC/Caa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.20% |
| C000202320 | CC/Ca | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.90% |
| C000202320 | C | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.20% |
| C000202320 | D | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0% |
| C000202320 | N/R | |
| Holdings [Line Items] | |
| Percent of Total Investments | 23.60% |
| C000202320 | U.S. Government Sponsored Agency Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 46.70% |
| C000202320 | Non-Agency Mortgage-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 38.80% |
| C000202320 | Asset-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 14.40% |
| C000202320 | Corporate Bonds | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.10% |
| C000202318 | AAA/Aaa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 48% |
| C000202318 | AA/Aa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 16.70% |
| C000202318 | A | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.50% |
| C000202318 | BBB/Baa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.10% |
| C000202318 | BB/Ba | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.20% |
| C000202318 | B | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.60% |
| C000202318 | CCC/Caa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.20% |
| C000202318 | CC/Ca | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.90% |
| C000202318 | C | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.20% |
| C000202318 | D | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0% |
| C000202318 | N/R | |
| Holdings [Line Items] | |
| Percent of Total Investments | 23.60% |
| C000202318 | U.S. Government Sponsored Agency Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 46.70% |
| C000202318 | Non-Agency Mortgage-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 38.80% |
| C000202318 | Asset-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 14.40% |
| C000202318 | Corporate Bonds | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.10% |
| C000202319 | AAA/Aaa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 48% |
| C000202319 | AA/Aa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 16.70% |
| C000202319 | A | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.50% |
| C000202319 | BBB/Baa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.10% |
| C000202319 | BB/Ba | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.20% |
| C000202319 | B | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.60% |
| C000202319 | CCC/Caa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.20% |
| C000202319 | CC/Ca | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.90% |
| C000202319 | C | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.20% |
| C000202319 | D | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0% |
| C000202319 | N/R | |
| Holdings [Line Items] | |
| Percent of Total Investments | 23.60% |
| C000202319 | U.S. Government Sponsored Agency Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 46.70% |
| C000202319 | Non-Agency Mortgage-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 38.80% |
| C000202319 | Asset-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 14.40% |
| C000202319 | Corporate Bonds | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.10% |
