| Form N-CSR Cover | 12 Months Ended |
| Oct. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Neuberger Berman Alternative Funds |
| Entity Central Index Key | 0001317474 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| Shareholder Report | 12 Months Ended | |
| Nov. 01, 2023 | Oct. 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | ||
| Document Type | N-CSR | |
| Amendment Flag | false | |
| Registrant Name | Neuberger Berman Alternative Funds | |
| Entity Central Index Key | 0001317474 | |
| Entity Investment Company Type | N-1A | |
| Document Period End Date | Oct. 31, 2024 | |
| C000112087 | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Neuberger Berman Absolute Return Multi-Manager Fund | |
| Class Name | Class A | |
| Trading Symbol | NABAX | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Fund for the period of November 1, 2023 to October 31, 2024. | |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents fundinfo nb.com | |
| Additional Information Phone Number | 800.877.9700 | |
| Additional Information Email | fundinfo@nb.com</span>" id="sjs-C19"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9.33333px; font-weight: 400; grid-area: auto; line-height: 14px; margin: 0px; overflow: visible; text-align: left;">fundinfo@nb.com</span> | |
| Additional Information Website | www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents</span>" id="sjs-C20"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9.33333px; font-weight: 400; grid-area: auto; line-height: 14px; margin: 0px; overflow: visible; text-align: left;">www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents</span> | |
| Expenses [Text Block] | What were the Fund's costs for the year? (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 Class A $219 2.15% | |
| Expenses Paid, Amount | $ 219 | |
| Expense Ratio, Percent | 2.15% | |
| Line Graph [Table Text Block] | Class A (including sales charge) 11,392 Bloomberg U.S. Aggregate Bond Index $11,593 HFRX ® S&P ® Oct 14 9,425 10,000 10,000 10,000 Oct 15 9,189 10,196 9,795 10,520 Oct 16 9,013 10,641 9,668 10,994 Oct 17 9,504 10,737 10,342 13,593 Oct 18 9,415 10,517 9,977 14,591 Oct 19 9,620 11,727 10,329 16,681 Oct 20 9,772 12,453 10,711 18,301 Oct 21 10,462 12,393 11,791 26,155 Oct 22 10,864 10,450 11,169 22,334 Oct 23 10,950 10,487 11,241 24,599 Oct 24 11,392 11,593 12,031 33,950 | |
| Average Annual Return [Table Text Block] | 1 Year 5 Years 10 Years Class A (at NAV) 4.03 % 3.44 % 1.92 % Class A (including sales charge) - % 2.22 % 1.31 % Bloomberg U.S. Aggregate Bond Index 10.55 % - % 1.49 % HFRX ® 7.03 % 3.10 % 1.87 % S& P ® 38.02 % 15.27 % 13.00 % | |
| AssetsNet | $ 90,353,718 | |
| Holdings Count | Holding | 575 | |
| Advisory Fees Paid, Amount | $ 989,726 | |
| InvestmentCompanyPortfolioTurnover | 137% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $90,353,718 Number of Portfolio Holdings 575 Total Investment Advisory Fees Paid $989,726 Portfolio Turnover Rate 137% | |
| Holdings [Text Block] | Portfolio by Investment Type (as a % of Total Net Assets) Long Short Common Stocks 44.6 % (6.6 )% Corporate Bonds 0.0 - Insurance Linked Securities 8.5 - Loan Assignments 0.0 - Rights 0.1 - Warrants 0.0 - Short-Term Investments 35.4 - Other Assets Less Liabilities 18.0 Footnote Reference - Total 106.6% (6.6)% Footnote Description Footnote ** Includes the impact of the Fund's open positions in derivatives (other than options purchased), if any. | |
| Material Fund Change [Text Block] | Material Fund Changes This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's prospectus, which is available at www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents or upon request at 800.877.9700 or fundinfo nb.com On December 26, 2023, Crabel Capital Management, LLC was added as a subadviser to the Fund. Effective as of June 28, 2024, BH-DG Systematic Trading LLP is no longer a subadviser to the Fund. | |
| C000112088 | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Neuberger Berman Absolute Return Multi-Manager Fund | |
| Class Name | Class C | |
| Trading Symbol | NABCX | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Fund for the period of November 1, 2023 to October 31, 2024. | |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents fundinfo nb.com | |
| Additional Information Phone Number | 800.877.9700 | |
| Additional Information Email | fundinfo@nb.com</span>" id="sjs-C42"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9.33333px; font-weight: 400; grid-area: auto; line-height: 14px; margin: 0px; overflow: visible; text-align: left;">fundinfo@nb.com</span> | |
| Additional Information Website | www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents</span>" id="sjs-C43"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9.33333px; font-weight: 400; grid-area: auto; line-height: 14px; margin: 0px; overflow: visible; text-align: left;">www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents</span> | |
| Expenses [Text Block] | What were the Fund's costs for the year? (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 Class C $295 2.90% | |
| Expenses Paid, Amount | $ 295 | |
| Expense Ratio, Percent | 2.90% | |
| Line Graph [Table Text Block] | Class C (including sales charge) 11,223 Bloomberg U.S. Aggregate Bond Index $11,593 HFRX ® S&P ® Oct 14 10,000 10,000 10,000 10,000 Oct 15 9,679 10,196 9,795 10,520 Oct 16 9,422 10,641 9,668 10,994 Oct 17 9,865 10,737 10,342 13,593 Oct 18 9,692 10,517 9,977 14,591 Oct 19 9,827 11,727 10,329 16,681 Oct 20 9,921 12,453 10,711 18,301 Oct 21 10,539 12,393 11,791 26,155 Oct 22 10,858 10,450 11,169 22,334 Oct 23 10,858 10,487 11,241 24,599 Oct 24 11,223 11,593 12,031 33,950 | |
| Average Annual Return [Table Text Block] | 1 Year 5 Years 10 Years Class C (at NAV) 3.36 % 2.69 % 1.16 % Class C (including sales charge) 2.36 % 2.69 % 1.16 % Bloomberg U.S. Aggregate Bond Index 10.55 % - % 1.49 % HFRX ® 7.03 % 3.10 % 1.87 % S& P ® 38.02 % 15.27 % 13.00 % | |
| AssetsNet | $ 90,353,718 | |
| Holdings Count | Holding | 575 | |
| Advisory Fees Paid, Amount | $ 989,726 | |
| InvestmentCompanyPortfolioTurnover | 137% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $90,353,718 Number of Portfolio Holdings 575 Total Investment Advisory Fees Paid $989,726 Portfolio Turnover Rate 137% | |
| Holdings [Text Block] | Portfolio by Investment Type (as a % of Total Net Assets) Long Short Common Stocks 44.6 % (6.6 )% Corporate Bonds 0.0 - Insurance Linked Securities 8.5 - Loan Assignments 0.0 - Rights 0.1 - Warrants 0.0 - Short-Term Investments 35.4 - Other Assets Less Liabilities 18.0 Footnote Reference - Total 106.6% (6.6)% Footnote Description Footnote ** Includes the impact of the Fund's open positions in derivatives (other than options purchased), if any. | |
| Material Fund Change [Text Block] | Material Fund Changes This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's prospectus, which is available at www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents or upon request at 800.877.9700 or fundinfo nb.com On December 26, 2023, Crabel Capital Management, LLC was added as a subadviser to the Fund. Effective as of June 28, 2024, BH-DG Systematic Trading LLP is no longer a subadviser to the Fund. | |
| C000228868 | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Neuberger Berman Absolute Return Multi-Manager Fund | |
| Class Name | Class E | |
| Trading Symbol | NABEX | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Fund for the period of November 1, 2023 to October 31, 2024. | |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents fundinfo nb.com | |
| Additional Information Phone Number | 800.877.9700 | |
| Additional Information Email | fundinfo@nb.com</span>" id="sjs-C65"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9.33333px; font-weight: 400; grid-area: auto; line-height: 14px; margin: 0px; overflow: visible; text-align: left;">fundinfo@nb.com</span> | |
| Additional Information Website | www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents</span>" id="sjs-C66"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9.33333px; font-weight: 400; grid-area: auto; line-height: 14px; margin: 0px; overflow: visible; text-align: left;">www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents</span> | |
| Expenses [Text Block] | What were the Fund's costs for the year? (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 Class E $67 0.65% | |
| Expenses Paid, Amount | $ 67 | |
| Expense Ratio, Percent | 0.65% | |
| Line Graph [Table Text Block] | Class E 12,963 Bloomberg U.S. Aggregate Bond Index $11,593 HFRX ® S&P ® Oct 14 10,000 10,000 10,000 10,000 Oct 15 9,790 10,196 9,795 10,520 Oct 16 9,637 10,641 9,668 10,994 Oct 17 10,196 10,737 10,342 13,593 Oct 18 10,139 10,517 9,977 14,591 Oct 19 10,390 11,727 10,329 16,681 Oct 20 10,599 12,453 10,711 18,301 Oct 21 11,384 12,393 11,791 26,155 Oct 22 11,973 10,450 11,169 22,334 Oct 23 12,275 10,487 11,241 24,599 Oct 24 12,963 11,593 12,031 33,950 | |
| Average Annual Return [Table Text Block] | 1 Year 5 Years 10 Years Class E 5.60 % 4.52 % 2.63 % Bloomberg U.S. Aggregate Bond Index 10.55 % - % 1.49 % HFRX ® 7.03 % 3.10 % 1.87 % S& P ® 38.02 % 15.27 % 13.00 % | |
| AssetsNet | $ 90,353,718 | |
| Holdings Count | Holding | 575 | |
| Advisory Fees Paid, Amount | $ 989,726 | |
| InvestmentCompanyPortfolioTurnover | 137% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $90,353,718 Number of Portfolio Holdings 575 Total Investment Advisory Fees Paid $989,726 Portfolio Turnover Rate 137% | |
| Holdings [Text Block] | Portfolio by Investment Type (as a % of Total Net Assets) Long Short Common Stocks 44.6 % (6.6 )% Corporate Bonds 0.0 - Insurance Linked Securities 8.5 - Loan Assignments 0.0 - Rights 0.1 - Warrants 0.0 - Short-Term Investments 35.4 - Other Assets Less Liabilities 18.0 Footnote Reference - Total 106.6% (6.6)% Footnote Description Footnote ** Includes the impact of the Fund's open positions in derivatives (other than options purchased), if any. | |
| Material Fund Change [Text Block] | Material Fund Changes This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's prospectus, which is available at www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents or upon request at 800.877.9700 or fundinfo nb.com On December 26, 2023, Crabel Capital Management, LLC was added as a subadviser to the Fund. Effective as of June 28, 2024, BH-DG Systematic Trading LLP is no longer a subadviser to the Fund. The change in Fund fees for the reporting period resulted primarily from changes in dividend and interest expenses relating to short sales. | |
| C000135954 | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Neuberger Berman Absolute Return Multi-Manager Fund | |
| Class Name | Class R6 | |
| Trading Symbol | NRABX | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Fund for the period of November 1, 2023 to October 31, 2024. | |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents issdl nb.com | |
| Additional Information Phone Number | 800.366.6264 | |
| Additional Information Email | issdl@nb.com</span>" id="sjs-C88"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9.33333px; font-weight: 400; grid-area: auto; line-height: 14px; margin: 0px; overflow: visible; text-align: left;">issdl@nb.com</span> | |
| Additional Information Website | www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents</span>" id="sjs-C89"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9.33333px; font-weight: 400; grid-area: auto; line-height: 14px; margin: 0px; overflow: visible; text-align: left;">www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents</span> | |
| Expenses [Text Block] | What were the Fund's costs for the year? (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 Class R6 $173 1.69% | |
| Expenses Paid, Amount | $ 173 | |
| Expense Ratio, Percent | 1.69% | |
| Line Graph [Table Text Block] | Class R6 12,617 Bloomberg U.S. Aggregate Bond Index $11,593 HFRX ® S&P ® Oct 14 10,000 10,000 10,000 10,000 Oct 15 9,786 10,196 9,795 10,520 Oct 16 9,631 10,641 9,668 10,994 Oct 17 10,200 10,737 10,342 13,593 Oct 18 10,143 10,517 9,977 14,591 Oct 19 10,411 11,727 10,329 16,681 Oct 20 10,629 12,453 10,711 18,301 Oct 21 11,427 12,393 11,791 26,155 Oct 22 11,930 10,450 11,169 22,334 Oct 23 12,065 10,487 11,241 24,599 Oct 24 12,617 11,593 12,031 33,950 | |
| Average Annual Return [Table Text Block] | 1 Year 5 Years 10 Years Class R6 4.58 % 3.92 % 2.35 % Bloomberg U.S. Aggregate Bond Index 10.55 % - % 1.49 % HFRX ® 7.03 % 3.10 % 1.87 % S& P ® 38.02 % 15.27 % 13.00 % | |
| AssetsNet | $ 90,353,718 | |
| Holdings Count | Holding | 575 | |
| Advisory Fees Paid, Amount | $ 989,726 | |
| InvestmentCompanyPortfolioTurnover | 137% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $90,353,718 Number of Portfolio Holdings 575 Total Investment Advisory Fees Paid $989,726 Portfolio Turnover Rate 137% | |
| Holdings [Text Block] | Portfolio by Investment Type (as a % of Total Net Assets) Long Short Common Stocks 44.6 % (6.6 )% Corporate Bonds 0.0 - Insurance Linked Securities 8.5 - Loan Assignments 0.0 - Rights 0.1 - Warrants 0.0 - Short-Term Investments 35.4 - Other Assets Less Liabilities 18.0 Footnote Reference - Total 106.6% (6.6)% Footnote Description Footnote ** Includes the impact of the Fund's open positions in derivatives (other than options purchased), if any. | |
| Material Fund Change [Text Block] | Material Fund Changes This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's prospectus, which is available at www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents or upon request at 800.366.6264 or issdl nb.com On December 26, 2023, Crabel Capital Management, LLC was added as a subadviser to the Fund. Effective as of June 28, 2024, BH-DG Systematic Trading LLP is no longer a subadviser to the Fund. The change in Fund fees for the reporting period resulted primarily from changes in dividend and interest expenses relating to short sales. | |
| C000112089 | ||
| Shareholder Report [Line Items] | ||
| Fund Name | Neuberger Berman Absolute Return Multi-Manager Fund | |
| Class Name | Institutional Class | |
| Trading Symbol | NABIX | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Fund for the period of November 1, 2023 to October 31, 2024. | |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | |
| Additional Information [Text Block] | You can find additional information about the Fund at www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents issdl nb.com | |
| Additional Information Phone Number | 800.366.6264 | |
| Additional Information Email | issdl@nb.com</span>" id="sjs-C111"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9.33333px; font-weight: 400; grid-area: auto; line-height: 14px; margin: 0px; overflow: visible; text-align: left;">issdl@nb.com</span> | |
| Additional Information Website | www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents</span>" id="sjs-C112"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9.33333px; font-weight: 400; grid-area: auto; line-height: 14px; margin: 0px; overflow: visible; text-align: left;">www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents</span> | |
| Expenses [Text Block] | What were the Fund's costs for the year? (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 Class $183 1.79% | |
| Expenses Paid, Amount | $ 183 | |
| Expense Ratio, Percent | 1.79% | |
| Line Graph [Table Text Block] | Institutional Class 1,253,200 Bloomberg U.S. Aggregate Bond Index $1,159,300 HFRX ® S&P ® Oct 14 1,000,000 1,000,000 1,000,000 1,000,000 Oct 15 979,000 1,019,600 979,500 1,052,000 Oct 16 963,700 1,064,100 966,800 1,099,400 Oct 17 1,019,600 1,073,700 1,034,200 1,359,300 Oct 18 1,013,900 1,051,700 997,700 1,459,100 Oct 19 1,039,000 1,172,700 1,032,900 1,668,100 Oct 20 1,059,900 1,245,300 1,071,100 1,830,100 Oct 21 1,138,400 1,239,300 1,179,100 2,615,500 Oct 22 1,187,300 1,045,000 1,116,900 2,233,400 Oct 23 1,200,600 1,048,700 1,124,100 2,459,900 Oct 24 1,253,200 1,159,300 1,203,100 3,395,000 | |
| Average Annual Return [Table Text Block] | 1 Year 5 Years 10 Years Institutional Class 4.39 % 3.82 % 2.28 % Bloomberg U.S. Aggregate Bond Index 10.55 % - % 1.49 % HFRX ® 7.03 % 3.10 % 1.87 % S& P ® 38.02 % 15.27 % 13.00 % | |
| AssetsNet | $ 90,353,718 | |
| Holdings Count | Holding | 575 | |
| Advisory Fees Paid, Amount | $ 989,726 | |
| InvestmentCompanyPortfolioTurnover | 137% | |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $90,353,718 Number of Portfolio Holdings 575 Total Investment Advisory Fees Paid $989,726 Portfolio Turnover Rate 137% | |
| Holdings [Text Block] | Portfolio by Investment Type (as a % of Total Net Assets) Long Short Common Stocks 44.6 % (6.6 )% Corporate Bonds 0.0 - Insurance Linked Securities 8.5 - Loan Assignments 0.0 - Rights 0.1 - Warrants 0.0 - Short-Term Investments 35.4 - Other Assets Less Liabilities 18.0 Footnote Reference - Total 106.6% (6.6)% Footnote Description Footnote ** Includes the impact of the Fund's open positions in derivatives (other than options purchased), if any. | |
| Material Fund Change [Text Block] | Material Fund Changes This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's prospectus, which is available at www.nb.com/en/us/products/mutual-funds/absolute-return-multi-manager-fund?section=documents or upon request at 800.366.6264 or issdl nb.com On December 26, 2023, Crabel Capital Management, LLC was added as a subadviser to the Fund. Effective as of June 28, 2024, BH-DG Systematic Trading LLP is no longer a subadviser to the Fund. |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | ||||||||||
| Oct. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2020 | Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2017 | Oct. 31, 2016 | Oct. 31, 2015 | Oct. 31, 2014 | |
| C000112087 | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class A | ||||||||||
| Account Value | $ 11,392 | $ 10,950 | $ 10,864 | $ 10,462 | $ 9,772 | $ 9,620 | $ 9,415 | $ 9,504 | $ 9,013 | $ 9,189 | $ 9,425 |
| C000112088 | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class C | ||||||||||
| Account Value | $ 11,223 | 10,858 | 10,858 | 10,539 | 9,921 | 9,827 | 9,692 | 9,865 | 9,422 | 9,679 | 10,000 |
| C000228868 | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class E | ||||||||||
| Account Value | $ 12,963 | 12,275 | 11,973 | 11,384 | 10,599 | 10,390 | 10,139 | 10,196 | 9,637 | 9,790 | 10,000 |
| C000135954 | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class R6 | ||||||||||
| Account Value | $ 12,617 | 12,065 | 11,930 | 11,427 | 10,629 | 10,411 | 10,143 | 10,200 | 9,631 | 9,786 | 10,000 |
| C000112089 | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Institutional Class | ||||||||||
| Account Value | $ 1,253,200 | 1,200,600 | 1,187,300 | 1,138,400 | 1,059,900 | 1,039,000 | 1,013,900 | 1,019,600 | 963,700 | 979,000 | 1,000,000 |
| Bloomberg U.S. Aggregate Bond Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Account Value | $ 11,593 | 10,487 | 10,450 | 12,393 | 12,453 | 11,727 | 10,517 | 10,737 | 10,641 | 10,196 | 10,000 |
| Bloomberg U.S. Aggregate Bond Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Account Value | $ 11,593 | 10,487 | 10,450 | 12,393 | 12,453 | 11,727 | 10,517 | 10,737 | 10,641 | 10,196 | 10,000 |
| Bloomberg U.S. Aggregate Bond Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Account Value | $ 11,593 | 10,487 | 10,450 | 12,393 | 12,453 | 11,727 | 10,517 | 10,737 | 10,641 | 10,196 | 10,000 |
| Bloomberg U.S. Aggregate Bond Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Account Value | $ 11,593 | 10,487 | 10,450 | 12,393 | 12,453 | 11,727 | 10,517 | 10,737 | 10,641 | 10,196 | 10,000 |
| Bloomberg U.S. Aggregate Bond Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Account Value | $ 1,159,300 | 1,048,700 | 1,045,000 | 1,239,300 | 1,245,300 | 1,172,700 | 1,051,700 | 1,073,700 | 1,064,100 | 1,019,600 | 1,000,000 |
| HFRX® Global Hedge Fund Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | ®</sup> Global Hedge Fund Index" id="sjs-B45">HFRX<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Global Hedge Fund Index | ||||||||||
| Account Value | $ 12,031 | 11,241 | 11,169 | 11,791 | 10,711 | 10,329 | 9,977 | 10,342 | 9,668 | 9,795 | 10,000 |
| S&P® 500 Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | ®</sup> 500 Index" id="sjs-B49">S&P<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> 500 Index | ||||||||||
| Account Value | $ 33,950 | 24,599 | 22,334 | 26,155 | 18,301 | 16,681 | 14,591 | 13,593 | 10,994 | 10,520 | 10,000 |
| HFRX® Global Hedge Fund Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | ®</sup> Global Hedge Fund Index" id="sjs-B53">HFRX<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Global Hedge Fund Index | ||||||||||
| Account Value | $ 12,031 | 11,241 | 11,169 | 11,791 | 10,711 | 10,329 | 9,977 | 10,342 | 9,668 | 9,795 | 10,000 |
| S&P® 500 Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | ®</sup> 500 Index" id="sjs-B57">S&P<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> 500 Index | ||||||||||
| Account Value | $ 33,950 | 24,599 | 22,334 | 26,155 | 18,301 | 16,681 | 14,591 | 13,593 | 10,994 | 10,520 | 10,000 |
| HFRX® Global Hedge Fund Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | ®</sup> Global Hedge Fund Index" id="sjs-B61">HFRX<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Global Hedge Fund Index | ||||||||||
| Account Value | $ 12,031 | 11,241 | 11,169 | 11,791 | 10,711 | 10,329 | 9,977 | 10,342 | 9,668 | 9,795 | 10,000 |
| S&P® 500 Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | ®</sup> 500 Index" id="sjs-B65">S&P<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> 500 Index | ||||||||||
| Account Value | $ 33,950 | 24,599 | 22,334 | 26,155 | 18,301 | 16,681 | 14,591 | 13,593 | 10,994 | 10,520 | 10,000 |
| HFRX® Global Hedge Fund Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | ®</sup> Global Hedge Fund Index" id="sjs-B69">HFRX<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Global Hedge Fund Index | ||||||||||
| Account Value | $ 12,031 | 11,241 | 11,169 | 11,791 | 10,711 | 10,329 | 9,977 | 10,342 | 9,668 | 9,795 | 10,000 |
| S&P® 500 Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | ®</sup> 500 Index" id="sjs-B73">S&P<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> 500 Index | ||||||||||
| Account Value | $ 33,950 | 24,599 | 22,334 | 26,155 | 18,301 | 16,681 | 14,591 | 13,593 | 10,994 | 10,520 | 10,000 |
| HFRX® Global Hedge Fund Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | ®</sup> Global Hedge Fund Index" id="sjs-B77">HFRX<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Global Hedge Fund Index | ||||||||||
| Account Value | $ 1,203,100 | 1,124,100 | 1,116,900 | 1,179,100 | 1,071,100 | 1,032,900 | 997,700 | 1,034,200 | 966,800 | 979,500 | 1,000,000 |
| S&P® 500 Index | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | ®</sup> 500 Index" id="sjs-B81">S&P<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> 500 Index | ||||||||||
| Account Value | $ 3,395,000 | $ 2,459,900 | $ 2,233,400 | $ 2,615,500 | $ 1,830,100 | $ 1,668,100 | $ 1,459,100 | $ 1,359,300 | $ 1,099,400 | $ 1,052,000 | $ 1,000,000 |
| Shareholder Report, Average Annual Return (Details) | 12 Months Ended | 60 Months Ended | 120 Months Ended |
| Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | |
| C000112087 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class A | ||
| Average Annual Return, Percent | (1.97%) | 2.22% | 1.31% |
| C000112088 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class C | ||
| Average Annual Return, Percent | 2.36% | 2.69% | 1.16% |
| C000228868 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class E | ||
| C000135954 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class R6 | ||
| C000112089 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Institutional Class | ||
| Without Sales Load [Member] | C000112087 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 4.03% | 3.44% | 1.92% |
| Without Sales Load [Member] | C000112088 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 3.36% | 2.69% | 1.16% |
| Without Sales Load [Member] | C000228868 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 5.60% | 4.52% | 2.63% |
| Without Sales Load [Member] | C000135954 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 4.58% | 3.92% | 2.35% |
| Without Sales Load [Member] | C000112089 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 4.39% | 3.82% | 2.28% |
| Bloomberg U.S. Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||
| Average Annual Return, Percent | 10.55% | (0.23%) | 1.49% |
| Bloomberg U.S. Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||
| Average Annual Return, Percent | 10.55% | (0.23%) | 1.49% |
| Bloomberg U.S. Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||
| Average Annual Return, Percent | 10.55% | (0.23%) | 1.49% |
| Bloomberg U.S. Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||
| Average Annual Return, Percent | 10.55% | (0.23%) | 1.49% |
| Bloomberg U.S. Aggregate Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||
| Average Annual Return, Percent | 10.55% | (0.23%) | 1.49% |
| HFRX® Global Hedge Fund Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Global Hedge Fund Index" id="sjs-B57">HFRX<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Global Hedge Fund Index | ||
| Average Annual Return, Percent | 7.03% | 3.10% | 1.87% |
| S&P® 500 Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> 500 Index" id="sjs-B61">S&P<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> 500 Index | ||
| Average Annual Return, Percent | 38.02% | 15.27% | 13% |
| HFRX® Global Hedge Fund Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Global Hedge Fund Index" id="sjs-B65">HFRX<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Global Hedge Fund Index | ||
| Average Annual Return, Percent | 7.03% | 3.10% | 1.87% |
| S&P® 500 Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> 500 Index" id="sjs-B69">S&P<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> 500 Index | ||
| Average Annual Return, Percent | 38.02% | 15.27% | 13% |
| HFRX® Global Hedge Fund Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Global Hedge Fund Index" id="sjs-B73">HFRX<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Global Hedge Fund Index | ||
| Average Annual Return, Percent | 7.03% | 3.10% | 1.87% |
| S&P® 500 Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> 500 Index" id="sjs-B77">S&P<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> 500 Index | ||
| Average Annual Return, Percent | 38.02% | 15.27% | 13% |
| HFRX® Global Hedge Fund Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Global Hedge Fund Index" id="sjs-B81">HFRX<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Global Hedge Fund Index | ||
| Average Annual Return, Percent | 7.03% | 3.10% | 1.87% |
| S&P® 500 Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> 500 Index" id="sjs-B85">S&P<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> 500 Index | ||
| Average Annual Return, Percent | 38.02% | 15.27% | 13% |
| HFRX® Global Hedge Fund Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> Global Hedge Fund Index" id="sjs-B89">HFRX<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> Global Hedge Fund Index | ||
| Average Annual Return, Percent | 7.03% | 3.10% | 1.87% |
| S&P® 500 Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | ®</sup> 500 Index" id="sjs-B93">S&P<sup style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center;">®</sup> 500 Index | ||
| Average Annual Return, Percent | 38.02% | 15.27% | 13% |
| Shareholder Report, Holdings (Details) | Oct. 31, 2024 |
| C000112087 | Fidelity Treasury Only Portfolio, Institutional Class | |
| Holdings [Line Items] | |
| Percent of Total Investments | 43.20% |
| C000112087 | Hess Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.20% |
| C000112087 | Prosus NV | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| C000112087 | HashiCorp, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.70% |
| C000112087 | Kellanova | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.60% |
| C000112087 | Alphabet, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.50% |
| C000112087 | Meta Platforms, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000112087 | Herbie Re Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000112087 | Microsoft Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000112087 | Nestle SA (Registered) | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| C000112087 | Chevron Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (2.50%) |
| C000112087 | International Paper Co. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (1.70%) |
| C000112087 | ConocoPhillips | |
| Holdings [Line Items] | |
| Percent of Total Investments | (1.00%) |
| C000112087 | Schlumberger NV | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.50%) |
| C000112087 | Lennar Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.40%) |
| C000112087 | Anglogold Ashanti plc | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.40%) |
| C000112087 | Capital One Financial Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000112087 | Charter Communications, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000112087 | Nokia OYJ | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000112087 | UMB Financial Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.20%) |
| C000112087 | Common Stock | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 44.60% |
| Percent of Net Short Exposure | (6.60%) |
| C000112087 | Corporate Bond | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000112087 | Insurance Linked Security | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 8.50% |
| Percent of Net Short Exposure | 0% |
| C000112087 | Loan Assignment | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000112087 | Right | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0.10% |
| Percent of Net Short Exposure | 0% |
| C000112087 | Warrant | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000112087 | Short-Term Investment | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 35.40% |
| Percent of Net Short Exposure | 0% |
| C000112087 | Other Asset Less Liabilities | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 18% |
| C000112088 | Fidelity Treasury Only Portfolio, Institutional Class | |
| Holdings [Line Items] | |
| Percent of Total Investments | 43.20% |
| C000112088 | Hess Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.20% |
| C000112088 | Prosus NV | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| C000112088 | HashiCorp, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.70% |
| C000112088 | Kellanova | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.60% |
| C000112088 | Alphabet, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.50% |
| C000112088 | Meta Platforms, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000112088 | Herbie Re Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000112088 | Microsoft Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000112088 | Nestle SA (Registered) | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| C000112088 | Chevron Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (2.50%) |
| C000112088 | International Paper Co. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (1.70%) |
| C000112088 | ConocoPhillips | |
| Holdings [Line Items] | |
| Percent of Total Investments | (1.00%) |
| C000112088 | Schlumberger NV | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.50%) |
| C000112088 | Lennar Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.40%) |
| C000112088 | Anglogold Ashanti plc | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.40%) |
| C000112088 | Capital One Financial Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000112088 | Charter Communications, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000112088 | Nokia OYJ | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000112088 | UMB Financial Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.20%) |
| C000112088 | Common Stock | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 44.60% |
| Percent of Net Short Exposure | (6.60%) |
| C000112088 | Corporate Bond | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000112088 | Insurance Linked Security | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 8.50% |
| Percent of Net Short Exposure | 0% |
| C000112088 | Loan Assignment | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000112088 | Right | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0.10% |
| Percent of Net Short Exposure | 0% |
| C000112088 | Warrant | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000112088 | Short-Term Investment | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 35.40% |
| Percent of Net Short Exposure | 0% |
| C000112088 | Other Asset Less Liabilities | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 18% |
| C000228868 | Fidelity Treasury Only Portfolio, Institutional Class | |
| Holdings [Line Items] | |
| Percent of Total Investments | 43.20% |
| C000228868 | Hess Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.20% |
| C000228868 | Prosus NV | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| C000228868 | HashiCorp, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.70% |
| C000228868 | Kellanova | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.60% |
| C000228868 | Alphabet, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.50% |
| C000228868 | Meta Platforms, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000228868 | Herbie Re Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000228868 | Microsoft Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000228868 | Nestle SA (Registered) | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| C000228868 | Chevron Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (2.50%) |
| C000228868 | International Paper Co. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (1.70%) |
| C000228868 | ConocoPhillips | |
| Holdings [Line Items] | |
| Percent of Total Investments | (1.00%) |
| C000228868 | Schlumberger NV | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.50%) |
| C000228868 | Lennar Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.40%) |
| C000228868 | Anglogold Ashanti plc | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.40%) |
| C000228868 | Capital One Financial Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000228868 | Charter Communications, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000228868 | Nokia OYJ | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000228868 | UMB Financial Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.20%) |
| C000228868 | Common Stock | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 44.60% |
| Percent of Net Short Exposure | (6.60%) |
| C000228868 | Corporate Bond | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000228868 | Insurance Linked Security | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 8.50% |
| Percent of Net Short Exposure | 0% |
| C000228868 | Loan Assignment | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000228868 | Right | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0.10% |
| Percent of Net Short Exposure | 0% |
| C000228868 | Warrant | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000228868 | Short-Term Investment | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 35.40% |
| Percent of Net Short Exposure | 0% |
| C000228868 | Other Asset Less Liabilities | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 18% |
| C000135954 | Fidelity Treasury Only Portfolio, Institutional Class | |
| Holdings [Line Items] | |
| Percent of Total Investments | 43.20% |
| C000135954 | Hess Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.20% |
| C000135954 | Prosus NV | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| C000135954 | HashiCorp, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.70% |
| C000135954 | Kellanova | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.60% |
| C000135954 | Alphabet, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.50% |
| C000135954 | Meta Platforms, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000135954 | Herbie Re Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000135954 | Microsoft Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000135954 | Nestle SA (Registered) | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| C000135954 | Chevron Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (2.50%) |
| C000135954 | International Paper Co. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (1.70%) |
| C000135954 | ConocoPhillips | |
| Holdings [Line Items] | |
| Percent of Total Investments | (1.00%) |
| C000135954 | Schlumberger NV | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.50%) |
| C000135954 | Lennar Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.40%) |
| C000135954 | Anglogold Ashanti plc | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.40%) |
| C000135954 | Capital One Financial Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000135954 | Charter Communications, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000135954 | Nokia OYJ | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000135954 | UMB Financial Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.20%) |
| C000135954 | Common Stock | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 44.60% |
| Percent of Net Short Exposure | (6.60%) |
| C000135954 | Corporate Bond | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000135954 | Insurance Linked Security | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 8.50% |
| Percent of Net Short Exposure | 0% |
| C000135954 | Loan Assignment | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000135954 | Right | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0.10% |
| Percent of Net Short Exposure | 0% |
| C000135954 | Warrant | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000135954 | Short-Term Investment | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 35.40% |
| Percent of Net Short Exposure | 0% |
| C000135954 | Other Asset Less Liabilities | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 18% |
| C000112089 | Fidelity Treasury Only Portfolio, Institutional Class | |
| Holdings [Line Items] | |
| Percent of Total Investments | 43.20% |
| C000112089 | Hess Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.20% |
| C000112089 | Prosus NV | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| C000112089 | HashiCorp, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.70% |
| C000112089 | Kellanova | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.60% |
| C000112089 | Alphabet, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.50% |
| C000112089 | Meta Platforms, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000112089 | Herbie Re Ltd. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000112089 | Microsoft Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.40% |
| C000112089 | Nestle SA (Registered) | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.30% |
| C000112089 | Chevron Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (2.50%) |
| C000112089 | International Paper Co. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (1.70%) |
| C000112089 | ConocoPhillips | |
| Holdings [Line Items] | |
| Percent of Total Investments | (1.00%) |
| C000112089 | Schlumberger NV | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.50%) |
| C000112089 | Lennar Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.40%) |
| C000112089 | Anglogold Ashanti plc | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.40%) |
| C000112089 | Capital One Financial Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000112089 | Charter Communications, Inc. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000112089 | Nokia OYJ | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.30%) |
| C000112089 | UMB Financial Corp. | |
| Holdings [Line Items] | |
| Percent of Total Investments | (0.20%) |
| C000112089 | Common Stock | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 44.60% |
| Percent of Net Short Exposure | (6.60%) |
| C000112089 | Corporate Bond | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000112089 | Insurance Linked Security | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 8.50% |
| Percent of Net Short Exposure | 0% |
| C000112089 | Loan Assignment | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000112089 | Right | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0.10% |
| Percent of Net Short Exposure | 0% |
| C000112089 | Warrant | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 0% |
| Percent of Net Short Exposure | 0% |
| C000112089 | Short-Term Investment | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 35.40% |
| Percent of Net Short Exposure | 0% |
| C000112089 | Other Asset Less Liabilities | |
| Holdings [Line Items] | |
| Percent of Net Long Exposure | 18% |
