v3.26.1
Fees and Expenses - Prospectus Summary
Apr. 30, 2026
USD ($)
NYLI CBRE Global Infrastructure Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses of the Fund
Expense Narrative [Text Block]

The table below describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund. In addition, different financial intermediary firms and financial professionals may impose different sales loads and waivers. More information about these and other discounts or waivers is available from your financial professional, in the "Information on Sales Charges" section starting on page 45 of the Prospectus and Appendix A – Intermediary-Specific Sales Charge Waivers and Discounts, and in the "Alternative Sales Arrangements" section on page 152 of the Statement of Additional Information.

Expense Breakpoint Discounts [Text] You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund.
Expense Breakpoint, Minimum Investment Required [Amount] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Prospectus Summary - NYLI CBRE Global Infrastructure Fund
Class A
Investor Class
Class C
Class I
Class R6
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 5.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage) 0.00% [1] 0.00% [1] 1.00% 0.00% 0.00%
[1] No initial sales charge applies on investments of $1 million or more (and certain other qualified purchases referenced within “Information on Sales Charges” in the Shareholder Guide). However, a contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge. For more information on contingent deferred sales charges, see “Sales Charges” in the Shareholder Guide.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Prospectus Summary - NYLI CBRE Global Infrastructure Fund
Class A
Investor Class
Class C
Class I
Class R6
Management Fees (as a percentage of Assets) [1] 0.85% 0.85% 0.85% 0.85% 0.85%
Distribution and Service (12b-1) Fees 0.25% 0.25% 1.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.19% 0.20% 0.20% 0.19% 0.05%
Expenses (as a percentage of Assets) 1.29% 1.30% 2.05% 1.04% 0.90%
Fee Waiver or Reimbursement [2] 0.00% 0.00% 0.00% (0.07%) 0.00%
Net Expenses (as a percentage of Assets) [2] 1.29% 1.30% 2.05% 0.97% 0.90%
Fee Waiver or Reimbursement over Assets, Date of Termination August 31, 2027 August 31, 2027 August 31, 2027 August 31, 2027 August 31, 2027
[1] The management fee is as follows: 0.85% on assets up to $3 billion and 0.84% on assets over $3 billion.
[2] New York Life Investment Management LLC ("New York Life Investment Management") has contractually agreed to waive fees and/or reimburse expenses so that Total Annual Fund Operating Expenses (excluding taxes, interest, litigation, extraordinary expenses, Trustee expenses, brokerage and other transaction expenses relating to the purchase or sale of portfolio investments, and acquired (underlying) fund fees and expenses) do not exceed the following percentages of its average daily net assets: Class A, 1.33%; Investor Class, 1.45%; Class C, 2.08%; Class I, 0.97%; and Class R6, 0.95%. This agreement will remain in effect until August 31, 2027, and thereafter shall renew automatically for one-year terms unless New York Life Investment Management provides written notice of termination prior to the start of the next term or, at any time, upon approval of the Board of Trustees of the Fund.
Expense Example [Heading] Example
Expense Example Narrative [Text Block] The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated whether or not you redeem all of your shares at the end of those periods (except as indicated with respect to Class C shares). The Example reflects Class C shares converting into Investor Class shares in years 9-10; expenses could be lower if you are eligible to convert to Class A shares instead. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Assuming redemption at end of period
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - NYLI CBRE Global Infrastructure Fund - USD ($)
Class A
Investor Class
Class C
Class I
Class R6
Expense Example, with Redemption, 1 Year $ 674 $ 626 $ 308 $ 99 $ 92
Expense Example, with Redemption, 3 Years 936 891 643 324 287
Expense Example, with Redemption, 5 Years 1,219 1,177 1,103 567 498
Expense Example, with Redemption, 10 Years $ 2,021 $ 1,989 $ 2,187 $ 1,265 $ 1,108
Expense Example, No Redemption, By Year, Caption [Text] Assuming no redemption
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Prospectus Summary - NYLI CBRE Global Infrastructure Fund
Class C
USD ($)
Expense Example, No Redemption, 1 Year $ 208
Expense Example, No Redemption, 3 Years 643
Expense Example, No Redemption, 5 Years 1,103
Expense Example, No Redemption, 10 Years $ 2,187
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are

not reflected in annual fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 79% of the average value of its portfolio.

Portfolio Turnover, Rate 79.00%
NYLI CBRE Global Infrastructure Fund | Class A  
Prospectus [Line Items]  
Expenses Deferred Charges [Text Block] No initial sales charge applies on investments of $1 million or more (and certain other qualified purchases referenced within “Information on Sales Charges” in the Shareholder Guide). However, a contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge. For more information on contingent deferred sales charges, see “Sales Charges” in the Shareholder Guide.
NYLI CBRE Global Infrastructure Fund | Investor Class  
Prospectus [Line Items]  
Expenses Deferred Charges [Text Block] No initial sales charge applies on investments of $1 million or more (and certain other qualified purchases referenced within “Information on Sales Charges” in the Shareholder Guide). However, a contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge. For more information on contingent deferred sales charges, see “Sales Charges” in the Shareholder Guide.
NYLI CBRE Real Estate Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses of the Fund
Expense Narrative [Text Block]

The table below describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund. In addition, different financial intermediary firms and financial professionals may impose different sales loads and waivers. More information about these and other discounts or waivers is available from your financial professional, in the "Information on Sales Charges" section starting on page 45 of the Prospectus and Appendix A – Intermediary-Specific Sales Charge Waivers and Discounts, and in the "Alternative Sales Arrangements" section on page 152 of the Statement of Additional Information.

Expense Breakpoint Discounts [Text] You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund.
Expense Breakpoint, Minimum Investment Required [Amount] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Prospectus Summary - NYLI CBRE Real Estate Fund
Class A
Investor Class
Class C
Class I
Class R6
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 5.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage) 0.00% [1] 0.00% [1] 1.00% 0.00% 0.00%
[1] No initial sales charge applies on investments of $1 million or more (and certain other qualified purchases referenced within “Information on Sales Charges” in the Shareholder Guide). However, a contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge. For more information on contingent deferred sales charges, see “Sales Charges” in the Shareholder Guide.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Prospectus Summary - NYLI CBRE Real Estate Fund
Class A
Investor Class
Class C
Class I
Class R6
Management Fees (as a percentage of Assets) 0.75% 0.75% 0.75% 0.75% 0.75%
Distribution and Service (12b-1) Fees 0.25% 0.25% 1.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.44% 0.31% 0.31% 0.44% 0.12%
Expenses (as a percentage of Assets) 1.44% 1.31% 2.06% 1.19% 0.87%
Fee Waiver or Reimbursement [1] (0.26%) 0.00% (0.13%) (0.36%) (0.13%)
Net Expenses (as a percentage of Assets) [1] 1.18% 1.31% 1.93% 0.83% 0.74%
Fee Waiver or Reimbursement over Assets, Date of Termination August 31, 2027 August 31, 2027 August 31, 2027 August 31, 2027 August 31, 2027
[1] New York Life Investment Management LLC ("New York Life Investment Management") has contractually agreed to waive fees and/or reimburse expenses so that Total Annual Fund Operating Expenses (excluding taxes, interest, litigation, extraordinary expenses, Trustee expenses, brokerage and other transaction expenses relating to the purchase or sale of portfolio investments, and acquired (underlying) fund fees and expenses) do not exceed the following percentages of its average daily net assets: Class A, 1.18%; Investor Class, 1.35%; Class C, 1.93%; Class I, 0.83%; and Class R6, 0.74%. This agreement will remain in effect until August 31, 2027, and thereafter shall renew automatically for one-year terms unless New York Life Investment Management provides written notice of termination prior to the start of the next term or, at any time, upon approval of the Board of Trustees of the Fund.
Expense Example [Heading] Example
Expense Example Narrative [Text Block] The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated whether or not you redeem all of your shares at the end of those periods (except as indicated with respect to Class C shares). The Example reflects Class C shares converting into Investor Class shares in years 9-10; expenses could be lower if you are eligible to convert to Class A shares instead. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Assuming redemption at end of period
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - NYLI CBRE Real Estate Fund - USD ($)
Class A
Investor Class
Class C
Class I
Class R6
Expense Example, with Redemption, 1 Year $ 664 $ 627 $ 296 $ 85 $ 76
Expense Example, with Redemption, 3 Years 956 894 633 342 265
Expense Example, with Redemption, 5 Years 1,270 1,182 1,096 620 469
Expense Example, with Redemption, 10 Years $ 2,158 $ 2,000 $ 2,187 $ 1,411 $ 1,061
Expense Example, No Redemption, By Year, Caption [Text] Assuming no redemption
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Prospectus Summary - NYLI CBRE Real Estate Fund
Class C
USD ($)
Expense Example, No Redemption, 1 Year $ 196
Expense Example, No Redemption, 3 Years 633
Expense Example, No Redemption, 5 Years 1,096
Expense Example, No Redemption, 10 Years $ 2,187
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 79% of the average value of its portfolio.

Portfolio Turnover, Rate 79.00%
NYLI CBRE Real Estate Fund | Class A  
Prospectus [Line Items]  
Expenses Deferred Charges [Text Block] No initial sales charge applies on investments of $1 million or more (and certain other qualified purchases referenced within “Information on Sales Charges” in the Shareholder Guide). However, a contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge. For more information on contingent deferred sales charges, see “Sales Charges” in the Shareholder Guide.
NYLI CBRE Real Estate Fund | Investor Class  
Prospectus [Line Items]  
Expenses Deferred Charges [Text Block] No initial sales charge applies on investments of $1 million or more (and certain other qualified purchases referenced within “Information on Sales Charges” in the Shareholder Guide). However, a contingent deferred sales charge of 1.00% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge. For more information on contingent deferred sales charges, see “Sales Charges” in the Shareholder Guide.
NYLI Conservative ETF Allocation Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses of the Fund
Expense Narrative [Text Block]

The table below describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Fund. In addition, different financial intermediary firms and financial professionals may impose different sales loads and waivers. More information about these and other discounts or waivers is available from your financial professional, in the "Information on Sales Charges" section starting on page 76 of the Prospectus and Appendix A – Intermediary-Specific Sales Charge Waivers and Discounts, and in the "Alternative Sales Arrangements" section on page 152 of the Statement of Additional Information.

Expense Breakpoint Discounts [Text] You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Fund.
Expense Breakpoint, Minimum Investment Required [Amount] $ 100,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Prospectus Summary - NYLI Conservative ETF Allocation Fund
Class A
Class C
Class I
Class R3
SIMPLE Class
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 3.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage) 0.00% [1] 1.00% 0.00% 0.00% 0.00%
[1] No initial sales charge applies on investments of $250,000 or more (and certain other qualified purchases referenced within “Information on Sales Charges” in the Shareholder Guide). However, a contingent deferred sales charge of 0.50% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge. For more information on contingent deferred sales charges, see “Sales Charges” in the Shareholder Guide.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Prospectus Summary - NYLI Conservative ETF Allocation Fund
Class A
Class C
Class I
Class R3
SIMPLE Class
Management Fees (as a percentage of Assets) 0.20% 0.20% 0.20% 0.20% 0.20%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.00% 0.50% 0.50%
Other Expenses (as a percentage of Assets): 0.37% 0.39% 0.37% 0.47% 0.39%
Acquired Fund Fees and Expenses 0.10% 0.10% 0.10% 0.10% 0.10%
Expenses (as a percentage of Assets) 0.92% 1.69% 0.67% 1.27% 1.19%
Fee Waiver or Reimbursement [1] (0.02%) (0.04%) (0.02%) (0.02%) (0.04%)
Net Expenses (as a percentage of Assets) [1] 0.90% 1.65% 0.65% 1.25% 1.15%
Fee Waiver or Reimbursement over Assets, Date of Termination August 31, 2027 August 31, 2027 August 31, 2027 August 31, 2027 August 31, 2027
[1] New York Life Investment Management LLC ("New York Life Investment Management") has contractually agreed to waive fees and/or reimburse expenses so that Total Annual Fund Operating Expenses (excluding taxes, interest, litigation, extraordinary expenses, Trustee expenses, brokerage and other transaction expenses relating to the purchase or sale of portfolio investments, and acquired (underlying) fund fees and expenses) do not exceed the following amounts of its average daily net assets: Class A, 0.80%; Class C, 1.55%; Class I, 0.55%; Class R3, 1.15% and SIMPLE Class, 1.05%. This agreement will remain in effect until August 31, 2027, and thereafter shall renew automatically for one-year terms unless New York Life Investment Management provides written notice of termination prior to the start of the next term or, at any time, upon approval of the Board of Trustees of the Fund.
Expense Example [Heading] Example
Expense Example Narrative [Text Block] The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated whether or not you redeem all of your shares at the end of those periods (except as indicated with respect to Class C shares). The Example reflects Class C shares converting into Class A shares in years 9-10. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Assuming redemption at end of period
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - NYLI Conservative ETF Allocation Fund - USD ($)
Class A
Class C
Class I
Class R3
SIMPLE Class
Expense Example, with Redemption, 1 Year $ 389 $ 268 $ 66 $ 127 $ 117
Expense Example, with Redemption, 3 Years 583 529 212 401 374
Expense Example, with Redemption, 5 Years 792 914 371 695 650
Expense Example, with Redemption, 10 Years $ 1,396 $ 1,790 $ 833 $ 1,532 $ 1,440
Expense Example, No Redemption, By Year, Caption [Text] Assuming no redemption
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Prospectus Summary - NYLI Conservative ETF Allocation Fund
Class C
USD ($)
Expense Example, No Redemption, 1 Year $ 168
Expense Example, No Redemption, 3 Years 529
Expense Example, No Redemption, 5 Years 914
Expense Example, No Redemption, 10 Years $ 1,790
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 55% of the average value of its portfolio.

Portfolio Turnover, Rate 55.00%
NYLI Conservative ETF Allocation Fund | Class A  
Prospectus [Line Items]  
Expenses Deferred Charges [Text Block] No initial sales charge applies on investments of $250,000 or more (and certain other qualified purchases referenced within “Information on Sales Charges” in the Shareholder Guide). However, a contingent deferred sales charge of 0.50% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge. For more information on contingent deferred sales charges, see “Sales Charges” in the Shareholder Guide.
NYLI Moderate ETF Allocation Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses of the Fund
Expense Narrative [Text Block]

The table below describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Fund. In addition, different financial intermediary firms and financial professionals may impose different sales loads and waivers. More information about these and other discounts or waivers is available from your financial professional, in the "Information on Sales Charges" section starting on page 76 of the Prospectus and Appendix A – Intermediary-Specific Sales Charge Waivers and Discounts, and in the "Alternative Sales Arrangements" section on page 152 of the Statement of Additional Information.

Expense Breakpoint Discounts [Text] You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Fund.
Expense Breakpoint, Minimum Investment Required [Amount] $ 100,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Prospectus Summary - NYLI Moderate ETF Allocation Fund
Class A
Class C
Class I
Class R3
SIMPLE Class
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 3.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage) 0.00% [1] 1.00% 0.00% 0.00% 0.00%
[1] No initial sales charge applies on investments of $250,000 or more (and certain other qualified purchases referenced within “Information on Sales Charges” in the Shareholder Guide). However, a contingent deferred sales charge of 0.50% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge. For more information on contingent deferred sales charges, see “Sales Charges” in the Shareholder Guide.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Prospectus Summary - NYLI Moderate ETF Allocation Fund
Class A
Class C
Class I
Class R3
SIMPLE Class
Management Fees (as a percentage of Assets) 0.20% 0.20% 0.20% 0.20% 0.20%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.00% 0.50% 0.50%
Other Expenses (as a percentage of Assets): 0.17% 0.19% 0.17% 0.27% 0.19%
Acquired Fund Fees and Expenses 0.09% 0.09% 0.09% 0.09% 0.09%
Expenses (as a percentage of Assets) 0.71% 1.48% 0.46% 1.06% 0.98%
Expense Example [Heading] Example
Expense Example Narrative [Text Block] The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated whether or not you redeem all of your shares at the end of those periods (except as indicated with respect to Class C shares). The Example reflects Class C shares converting into Class A shares in years 9-10. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Assuming redemption at end of period
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - NYLI Moderate ETF Allocation Fund - USD ($)
Class A
Class C
Class I
Class R3
SIMPLE Class
Expense Example, with Redemption, 1 Year $ 370 $ 251 $ 47 $ 108 $ 100
Expense Example, with Redemption, 3 Years 520 468 148 337 312
Expense Example, with Redemption, 5 Years 683 808 258 585 542
Expense Example, with Redemption, 10 Years $ 1,156 $ 1,560 $ 579 $ 1,294 $ 1,201
Expense Example, No Redemption, By Year, Caption [Text] Assuming no redemption
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Prospectus Summary - NYLI Moderate ETF Allocation Fund
Class C
USD ($)
Expense Example, No Redemption, 1 Year $ 151
Expense Example, No Redemption, 3 Years 468
Expense Example, No Redemption, 5 Years 808
Expense Example, No Redemption, 10 Years $ 1,560
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 51% of the average value of its portfolio.

Portfolio Turnover, Rate 51.00%
NYLI Moderate ETF Allocation Fund | Class A  
Prospectus [Line Items]  
Expenses Deferred Charges [Text Block] No initial sales charge applies on investments of $250,000 or more (and certain other qualified purchases referenced within “Information on Sales Charges” in the Shareholder Guide). However, a contingent deferred sales charge of 0.50% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge. For more information on contingent deferred sales charges, see “Sales Charges” in the Shareholder Guide.
NYLI Growth ETF Allocation Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses of the Fund
Expense Narrative [Text Block]

The table below describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Fund. In addition, different financial intermediary firms and financial professionals may impose different sales loads and waivers. More information about these and other discounts or waivers is available from your financial professional, in the "Information on Sales Charges" section starting on page 76 of the Prospectus and Appendix A – Intermediary-Specific Sales Charge Waivers and Discounts, and in the "Alternative Sales Arrangements" section on page 152 of the Statement of Additional Information.

Expense Breakpoint Discounts [Text] You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Fund.
Expense Breakpoint, Minimum Investment Required [Amount] $ 100,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Prospectus Summary - NYLI Growth ETF Allocation Fund
Class A
Class C
Class I
Class R3
SIMPLE Class
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 3.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage) 0.00% [1] 1.00% 0.00% 0.00% 0.00%
[1] No initial sales charge applies on investments of $250,000 or more (and certain other qualified purchases referenced within “Information on Sales Charges” in the Shareholder Guide). However, a contingent deferred sales charge of 0.50% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge. For more information on contingent deferred sales charges, see “Sales Charges” in the Shareholder Guide.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Prospectus Summary - NYLI Growth ETF Allocation Fund
Class A
Class C
Class I
Class R3
SIMPLE Class
Management Fees (as a percentage of Assets) 0.20% 0.20% 0.20% 0.20% 0.20%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.00% 0.50% 0.50%
Other Expenses (as a percentage of Assets): 0.19% 0.19% 0.19% 0.29% 0.19%
Acquired Fund Fees and Expenses 0.10% 0.10% 0.10% 0.10% 0.10%
Expenses (as a percentage of Assets) 0.74% 1.49% 0.49% 1.09% 0.99%
Expense Example [Heading] Example
Expense Example Narrative [Text Block] The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated whether or not you redeem all of your shares at the end of those periods (except as indicated with respect to Class C shares). The Example reflects Class C shares converting into Class A shares in years 9-10. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Assuming redemption at end of period
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - NYLI Growth ETF Allocation Fund - USD ($)
Class A
Class C
Class I
Class R3
SIMPLE Class
Expense Example, with Redemption, 1 Year $ 373 $ 252 $ 50 $ 111 $ 101
Expense Example, with Redemption, 3 Years 529 471 157 347 315
Expense Example, with Redemption, 5 Years 699 813 274 601 547
Expense Example, with Redemption, 10 Years $ 1,191 $ 1,576 $ 616 $ 1,329 $ 1,213
Expense Example, No Redemption, By Year, Caption [Text] Assuming no redemption
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Prospectus Summary - NYLI Growth ETF Allocation Fund
Class C
USD ($)
Expense Example, No Redemption, 1 Year $ 152
Expense Example, No Redemption, 3 Years 471
Expense Example, No Redemption, 5 Years 813
Expense Example, No Redemption, 10 Years $ 1,576
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 53% of the average value of its portfolio.

Portfolio Turnover, Rate 53.00%
NYLI Growth ETF Allocation Fund | Class A  
Prospectus [Line Items]  
Expenses Deferred Charges [Text Block] No initial sales charge applies on investments of $250,000 or more (and certain other qualified purchases referenced within “Information on Sales Charges” in the Shareholder Guide). However, a contingent deferred sales charge of 0.50% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge. For more information on contingent deferred sales charges, see “Sales Charges” in the Shareholder Guide.
NYLI Equity ETF Allocation Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses of the Fund
Expense Narrative [Text Block]

The table below describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Fund. In addition, different financial intermediary firms and financial professionals may impose different sales loads and waivers. More information about these and other discounts or waivers is available from your financial professional, in the "Information on Sales Charges" section starting on page 76 of the Prospectus and Appendix A – Intermediary-Specific Sales Charge Waivers and Discounts, and in the "Alternative Sales Arrangements" section on page 152 of the Statement of Additional Information.

Expense Breakpoint Discounts [Text] You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in the Fund.
Expense Breakpoint, Minimum Investment Required [Amount] $ 100,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Prospectus Summary - NYLI Equity ETF Allocation Fund
Class A
Class C
Class I
Class R3
SIMPLE Class
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 3.00% 0.00% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage) 0.00% [1] 1.00% 0.00% 0.00% 0.00%
[1] No initial sales charge applies on investments of $250,000 or more (and certain other qualified purchases referenced within “Information on Sales Charges” in the Shareholder Guide). However, a contingent deferred sales charge of 0.50% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge. For more information on contingent deferred sales charges, see “Sales Charges” in the Shareholder Guide.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Prospectus Summary - NYLI Equity ETF Allocation Fund
Class A
Class C
Class I
Class R3
SIMPLE Class
Management Fees (as a percentage of Assets) 0.20% 0.20% 0.20% 0.20% 0.20%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.00% 0.50% 0.50%
Other Expenses (as a percentage of Assets): 0.22% 0.22% 0.22% 0.32% 0.22%
Acquired Fund Fees and Expenses 0.07% 0.07% 0.07% 0.07% 0.07%
Expenses (as a percentage of Assets) 0.74% 1.49% 0.49% 1.09% 0.99%
Expense Example [Heading] Example
Expense Example Narrative [Text Block] The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated whether or not you redeem all of your shares at the end of those periods (except as indicated with respect to Class C shares). The Example reflects Class C shares converting into Class A shares in years 9-10. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The Example reflects the contractual fee waiver and/or expense reimbursement arrangement, if applicable, for the current duration of the arrangement only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Assuming redemption at end of period
Expense Example, With Redemption [Table]
Expense Example - Prospectus Summary - NYLI Equity ETF Allocation Fund - USD ($)
Class A
Class C
Class I
Class R3
SIMPLE Class
Expense Example, with Redemption, 1 Year $ 373 $ 252 $ 50 $ 111 $ 101
Expense Example, with Redemption, 3 Years 529 471 157 347 315
Expense Example, with Redemption, 5 Years 699 813 274 601 547
Expense Example, with Redemption, 10 Years $ 1,191 $ 1,576 $ 616 $ 1,329 $ 1,213
Expense Example, No Redemption, By Year, Caption [Text] Assuming no redemption
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Prospectus Summary - NYLI Equity ETF Allocation Fund
Class C
USD ($)
Expense Example, No Redemption, 1 Year $ 152
Expense Example, No Redemption, 3 Years 471
Expense Example, No Redemption, 5 Years 813
Expense Example, No Redemption, 10 Years $ 1,576
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 46% of the average value of its portfolio.

Portfolio Turnover, Rate 46.00%
NYLI Equity ETF Allocation Fund | Class A  
Prospectus [Line Items]  
Expenses Deferred Charges [Text Block] No initial sales charge applies on investments of $250,000 or more (and certain other qualified purchases referenced within “Information on Sales Charges” in the Shareholder Guide). However, a contingent deferred sales charge of 0.50% may be imposed on certain redemptions made within 18 months of the date of purchase on shares that were purchased without an initial sales charge. For more information on contingent deferred sales charges, see “Sales Charges” in the Shareholder Guide.