Investment Strategy |
Oct. 31, 2025 |
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| Northern Trust US Quality Low Volatility ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to construct a high quality universe of companies, that in aggregate, possess lower overall absolute volatility characteristics relative to the Northern Trust 1250 Index (the “Parent Index”), a float-adjusted market capitalization weighted index of U.S. domiciled large- and mid-capitalization companies. The Underlying Index places an emphasis on a company’s income and capital growth, while also reducing overall volatility of returns relative to the Parent Index. To derive the Underlying Index, NTI, acting in its capacity as the index provider (the “Index Provider”) ranks all constituents of the Parent Index using a Northern Trust proprietary quality factor. This factor is a quantitative ranking based on: (a) management efficiency (e.g., corporate finance activities); (b) profitability (e.g., reliability and sustainability of financial performance); and (c) cash flow (e.g., cash flow generation). The Index Provider then excludes the lowest quintile of constituents ranked according to the quality factor and uses an optimization process to select and weight eligible securities in order to (a) seek to reduce overall portfolio volatility and (b) maximize the overall quality factor relative to the Parent Index. The optimization also includes sector, industry group, style factor, single-security weight, historical beta (i.e., market sensitivity, relative to the Parent Index), liquidity and turnover constraints so that these characteristics of the Underlying Index vary within acceptable bands relative to the Parent Index. As of December 31, 2025, the Underlying Index was comprised of 108 constituent securities with market capitalizations ranging from $4.0 billion to $4.5 trillion. The Underlying Index is reconstituted quarterly. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts and options on futures contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust Developed Markets ex-US Quality Low Volatility ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying index is designed to construct a high quality universe of companies, that in aggregate, possess lower overall absolute volatility characteristics relative to an eligible developed market universe, excluding the U.S. (the “Eligible Universe”). The Eligible Universe is a subset of the Northern Trust Global Index, where eligible securities are limited to those domiciled in non-U.S. developed market countries and designated as large- and mid-capitalization companies by NTI, acting in its capacity as the index provider (the “Index Provider”). The Underlying Index places an emphasis on a company’s income and capital growth, while also reducing overall volatility of returns relative to the Eligible Universe. To derive the Underlying Index, the Index Provider ranks all constituents of the Eligible Universe using a Northern Trust proprietary quality factor. This factor is a quantitative ranking based on: (a) management efficiency (e.g., corporate finance activities); (b) profitability (e.g., reliability and sustainability of financial performance); and (c) cash flow (e.g., cash flow generation). The Index Provider then excludes the lowest quintile of constituents ranked accord ing to the quality factor and uses an optimization process to select and weight eligible securities in order to (a) seek to reduce overall portfolio volatility and (b) maximize the overall quality factor relative to the Eligible Universe. The optimization also includes sector, industry, country, region, region sector, style factor, single-security weight, historical beta (i.e., market sensitivity, relative to the Eligible Universe), liquidity and turnover constraints so that these characteristics of the Underlying Index vary within acceptable bands relative to the Eligible Universe. As of December 31, 2025, the Underlying Index was comprised of 169 constituent securities with market capitalizations ranging from $6.8 billion to $421.6 billion. The Underlying Index is reconstituted quarterly. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts, options on futures contracts and forward currency contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). From time to time the Fund may focus its investments (i.e., invest more than 15% of its total assets) in one or more particular countries or geographic regions. As of December 31, 2025, the Fund focused its investments in Japan and Canada. Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. |
| Northern Trust Emerging Markets Quality Low Volatility ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to construct a high quality universe of companies, that in aggregate, possess lower overall absolute volatility characteristics relative to an eligible emerging market universe (the “Eligible Universe”). The Eligible Universe is a subset of the Northern Trust Global Index, limited to those securities domiciled in emerging markets and designated as large- and mid-capitalization companies by NTI, acting in its capacity as the index provider (the “Index Provider”). The Underlying Index places an emphasis on a company’s income and capital growth, while also reducing overall volatility of returns relative to the Eligible Universe. To derive the Underlying Index, the Index Provider ranks all constituents of the Eligible Universe using a Northern Trust proprietary quality factor. This factor is a quantitative ranking based on: (a) management efficiency (e.g., corporate finance activities); (b) profitability (e.g., reliability and sustainability of financial performance); and (c) cash flow (e.g., cash flow generation). The Index Provider then excludes the lowest quintile of constituents ranked according to the quality factor and uses an optimization process to select and weight eligible securities in order to (a) seek to reduce overall portfolio volatility and (b) maximize the overall quality factor relative to the Eligible Universe. The optimization also includes sector, industry, country, style factor, single-security weight, historical beta (i.e., market sensitivity, relative to the Eligible Universe), liquidity and turnover constraints so that these characteristics of the Underlying Index vary within acceptable bands relative to the Eligible Universe. As of December 31, 2025, the Underlying Index was comprised of 155 constituent securities with market capitalizations ranging from $3.7 billion to $1.2 trillion. The Underlying Index is reconstituted quarterly. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts, options on futures contracts and forward currency contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). From time to time the Fund may focus its investments (i.e., invest more than 15% of its total assets) in one or more particular countries or geographic regions. As of December 31, 2025, the Fund focused its investments in India, China and Taiwan. Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. |
| Northern Trust Morningstar US Market Factor Tilt ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Morningstar® US Market Factor Tilt IndexSM (the “Underlying Index”) is designed to reflect the performance of the U.S. equity market with increased exposure to size and value factors relative to the Morningstar® US Market Extended Index (the “Parent Index”), a float-adjusted market-capitalization weighted index of large-, mid- and small-capitalization companies in the U.S. A company is generally classified in the U.S. if its primary stock market activities are carried out in the U.S. and it is incorporated in the U.S. or certain U.S. territories. The Underlying Index seeks to achieve increased exposures to size and value factors, or a “factor tilt”, by adjusting the Parent Index’s constituent weights to achieve a slightly greater weight on companies with smaller market capitalizations or lower valuations, as determined by Morningstar, Inc. (the “Index Provider”) pursuant to its index methodology. The Underlying Index is designed to measure the performance of U.S. equity markets with increased exposure toward small-capitalization and value stocks. As of December 31, 2025, the Underlying Index was comprised of 2,101 issues with market capitalizations ranging from $120.848 million to $4.548 trillion. The Underlying Index is reconstituted on a semi-annual basis and is rebalanced quarterly. The Fund generally reconstitutes and rebalances its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts and options on futures contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is sponsored by the Index Provider, an organization that is independent of the Fund and NTI. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust Morningstar Developed Markets ex-US Factor Tilt ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Morningstar® Developed Markets ex-US Factor Tilt IndexSM (the “Underlying Index”) is designed to reflect the performance of developed equity markets excluding the U.S. with increased exposure to size and value factors relative to the Morningstar® Developed Markets ex-US Index (the “Parent Index”), a float-adjusted market-capitalization weighted index of companies incorporated in developed market countries, excluding the U.S. The Underlying Index seeks to achieve increased exposures to size and value factors, or a “factor tilt”, by adjusting the Parent Index’s constituent weights to achieve a slightly greater weight on companies with smaller market capitalizations or lower valuations, as determined by Morningstar, Inc. (the “Index Provider”), pursuant to its index methodology. The Underlying Index is designed to include companies with enhanced risk-return characteristics relative to the broader developed international equity market by featuring size and value risk premiums, which NTI believes have been historically demonstrated over a full market cycle. As of December 31, 2025, the Underlying Index was comprised of 2,759 issues with market capitalizations ranging from $405.351 million to $420.029 billion. The Underlying Index is reconstituted on a semi-annual basis and is rebalanced quarterly. The Fund generally reconstitutes and rebalances its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts, options on futures contracts and forward currency contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is sponsored by the Index Provider, an organization that is independent of the Fund and NTI. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). From time to time the Fund may focus its investments (i.e., invest more than 15% of its total assets) in one or more particular countries or geographic regions. As of December 31, 2025, the Fund focused its investments in Japan. Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Financial sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Financial sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust Morningstar Emerging Markets Factor Tilt ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Morningstar® Emerging Markets Factor Tilt IndexSM (the “Underlying Index”) is designed to reflect the performance of emerging equity markets with increased exposure to size and value factors relative to the Morningstar® Emerging Markets Index (the “Parent Index”), a float-adjusted market-capitalization weighted index of companies incorporated in emerging-market countries. The Underlying Index seeks to achieve increased exposures to size and value factors, or a “factor tilt”, by adjusting the Parent Index’s constituent weights to achieve a slightly greater weight on companies with smaller market capitalizations or lower valuations, as determined by Morningstar, Inc. (the “Index Provider”), pursuant to its index methodology. The Underlying Index is designed to include companies with enhanced risk-return characteristics relative to the broader emerging equity market by featuring size and value risk premiums, which NTI believes have been historically demonstrated over a full market cycle. As of December 31, 2025, the Underlying Index was comprised of 3,779 issues with market capitalizations ranging from $133.6 mil lion to $1.5 trillion. The Underlying Index is reconstituted on a semi-annual basis and is rebalanced quarterly. The Fund generally reconstitutes and rebalances its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts, options on futures contracts and forward currency contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is sponsored by the Index Provider, an organization that is independent of the Fund and NTI. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). From time to time the Fund may focus its investments (i.e., invest more than 15% of its total assets) in one or more particular countries or geographic regions. As of December 31, 2025, the Fund focused its investments in China, Taiwan and South Korea. Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. |
| Northern Trust US Quality Large Cap ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a selection of companies that, in aggregate, possess greater exposure to quality, value and momentum factors relative to a universe of publicly-traded U.S. large-capitalization equity securities. This universe (the “Eligible Universe”) is comprised of the 600 largest companies in the Northern Trust 1250 Index, a float-adjusted market-capitalization weighted index of U.S. companies, as determined by the Index Provider, at the time of reconstitution. The Underlying Index is designed to maximize exposure to the composite of factors (quality, value, and momentum) while minimizing the overall risk of the Underlying Index relative to the Eligible Universe. To derive the Underlying Index, NTI, acting in its capacity as index provider (the “Index Provider”), ranks all constituents of the Eligible Universe using a Northern Trust proprietary blended multi-factor score. This score is designed to measure companies based on the quantitative assessment of their respective (a) quality (i.e., a factor that seeks to identify companies that exhibit financial strength and stability relative to the Eligible Universe); (b) value (i.e., a factor reflecting the current worth a company relative to its own historical value, book value or valuation versus peers); and (c) momentum (i.e., a factor that reflects market sentiment and changes in security price over a given time period). The Index Provider then uses an optimization process to select and weight eligible securities in order to maximize the overall blended multi-factor score relative to the Eligible Universe and to manage systematic risk utilizing several constraints. The optimization also includes sector, industry, single-security weight, beta (i.e. market sensitivity, relative to the Eligible Universe), liquidity, constituent and turnover constraints so that these index characteristics vary within acceptable bands relative to the Eligible Universe. The Underlying Index is reconstituted on a quarterly basis. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. As of December 31, 2025, the Underlying Index was comprised of 170 securities with a market capitalization ranging from $12.4 billion to $4.5 trillion. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. The Fund generally will invest under normal circumstances at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of its Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts and options on futures, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | The Fund generally will invest under normal circumstances at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of its Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust STOXX US ESG Select ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a selection of companies that, in aggregate, score better with respect to a set of environmental, social and governance (“ESG”) key performance indicators (“KPIs”) relative to the U.S. companies in the STOXX® Global 1800 Index (the “Parent Index”), a float-adjusted market-capitalization weighted index of companies incorporated in the U.S. and in developed international markets. The Underlying Index seeks to display enhanced ESG and risk-return characteristics relative to the broad U.S. large-cap equity market by featuring ESG-related KPIs as determined by STOXX Ltd. (the “Index Provider”). To derive the Underlying Index, the Index Provider eliminates all non-U.S. companies from the Parent Index. From the Parent Index, the Index Provider also eliminates companies that are non-compliant based on Sustainalytics Global Standards Screening assessment or have certain levels of involvement with the following products, services, or industries: (i) controversial weapons, (ii) small arms, (iii) military contracting, (iv) unconventional oil & gas, (v) thermal coal, (vi) tobacco, and (vii) private prisons. The Index Provider also eliminates companies based on customer incidents controversy ratings. For each remaining company, the KPIs are determined and standardized by industry, and an aggregate ESG score is calculated. The companies with an ESG score lower than the median ESG score within each industry are then dropped from the Underlying Index. The weights of the remaining constituents are then adjusted so that higher scoring ESG companies are assigned greater weights compared to the Parent Index. The maximum weight that can be assigned to a single company is limited to 5% at the time of each index rebalancing or reconstitution. As of December 31, 2025, the Underlying Index consisted of 255 U.S. companies with market capitalizations ranging from $11.2 billion to $4.5 trillion. The Underlying Index is reviewed on a quarterly basis. The Fund generally reconstitutes or rebalances its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts and options on futures contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is sponsored by the Index Provider, an organization that is independent of the Fund and NTI. The Index Provider determines the composition and rela tive weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust STOXX Global ESG Select ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a selection of companies that, in aggregate, score better with respect to a set of environmental, social and governance (“ESG”) key performance indicators (“KPIs”) relative to the STOXX® Global 1800 Index (the “Parent Index”), a float-adjusted market-capitalization weighted index of companies incorporated in the U.S. and in developed international markets. The Underlying Index seeks to display enhanced ESG and risk-return characteristics relative to the Parent Index by featuring ESG-related KPIs, as determined by STOXX Ltd. (the “Index Provider”). To derive the Underlying Index, the Index Provider eliminates companies that are non-compliant based on Sustainalytics Global Standards Screening assessment or have certain levels of involvement with the following products, services, or industries: (i) controversial weapons, (ii) small arms, (iii) military contracting, (iv) unconventional oil & gas, (v) thermal coal, (vi) tobacco, and (vii) private prisons. The Index Provider also eliminates companies based on customer incidents controversy ratings. For each remaining company, the KPIs are determined and standardized by industry, and an aggregate ESG score is calculated. The companies with an ESG score lower than the median ESG score within each industry are then dropped from the Underlying Index. The weights of the remaining constituents are then adjusted so that higher scoring ESG companies are assigned greater weights compared to the Parent Index. Component weightings may also be adjusted to ensure that the weight representation of each country in the Underlying Index does not vary from that in the STOXX® Global 1800 Index by more than +/-1 percentage point and that the weight of a single company is limited to 5% at the time of each index rebalancing or reconstitution. As of December 31, 2025, the Underlying Index consisted of 856 companies with market capitalizations ranging from $1.9 billion to $4.5 trillion. The Underlying Index is reviewed on a quarterly basis. The Fund generally reconstitutes or rebalances its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts, options on futures contracts and forward currency contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Fund may enter into forward foreign currency exchange contracts in order to facilitate local settlements or to protect against currency exposure in connection with their distributions to shareholders. The Fund does not expect to engage in currency transactions for speculative purposes or for purposes of hedging against declines in the value of its assets that are denominated in a foreign currency. The Underlying Index is sponsored by the Index Provider, an organization that is independent of the Fund and NTI. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). From time to time the Fund may focus its investments (i.e., invest more than 15% of its total assets) in one or more particular countries or geographic regions. As of December 31, 2025, the Fund focused its investments in the U.S. Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least80% of its total assets (exclusive of collateral held fromsecurities lending) in the securities of the Underlying Indexand in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust ESG & Climate US Large Cap Core ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index, administered by NTI in its capacity as index provider (the “Index Provider”), is designed to reflect the performance of a selection of companies that exhibit certain environmental, social and governance (“ESG”) characteristics in the aggregate, while also seeking to provide broad-market, core exposure to publicly-traded U.S. large capitalization equity securities, i.e., the constituents in the Northern Trust 600 IndexSM (the “Eligible Universe”), as measured by their float adjusted market capitalization. The Northern Trust 600 IndexSM is a float-adjusted market-capitalization weighted index of US domiciled companies. The Underlying Index starts by excluding certain companies from the Eligible Universe that, based on third-party data, are determined to have certain levels of controversial business involvement or behavior, including in tobacco, weaponry, thermal coal, unconventional oil and gas, and for-profit prisons, or to have caused, contributed to or are linked to certain violations of international norms and standards. Such exclusions are based on percentage of revenue thresholds for certain categories (e.g., those that receive significant revenue from production, retail and distribution of civilian weapons) and categorical exclusions for others (e.g., tobacco producers). The above-described exclusionary screens are applied with each reconstitution of the Underlying Index. The Index Provider may modify this list of excluded companies at any time, at its own discretion. The Underlying Index next applies an optimization process to minimize variance to the Eligible Universe while also targeting certain ESG characteristics, which is designed to produce an index that, relative to the Eligible Universe: (a) has an aggregate higher scoring of certain ESG characteristics, as measured by the Northern Trust ESG Vector Score (“ESG Vector Score”) described below, (b) improves the carbon risk rating, as measured by certain carbon-related risk metrics, and (c) decreases the weighted average carbon intensity and potential emissions. The ESG Vector Score is designed to rank companies based on their management of and exposure to material ESG metrics as defined by the Sustainability Accounting Standards Board (“SASB”) Standards. In addition, the Index Provider uses available data from Institutional Shareholder Services ESG Solutions to assess carbon emissions intensity, carbon reserves and a carbon risk rating. Carbon emissions intensity measures (i) direct greenhouse gas emissions from sources controlled or owned by the company (e.g., emissions associated with fuel combustion in boilers, furnaces, or vehicles); and (ii) indirect greenhouse gas emissions associated with the purchase of electricity, steam, heat or cooling against sales by the company. Carbon reserves measure the total estimated greenhouse gas emissions attributable to a company’s fossil fuel reserve assets. The carbon risk rating provides an assessment of a company’s ability to mitigate the risks of transition to a lower carbon economy based on its specific baseline carbon risk exposure. In the event that metrics or other data used to construct the ESG Vector Score as well as carbon emissions intensity, carbon reserves and/or the carbon risk rating are not available or otherwise deemed unreliable, NTI may make reasonable estimates or otherwise exercise its discretion to implement the optimization process. Notwithstanding the optimization process, it is possible that the Underlying Index will include (and therefore the Fund could invest in) securities that, individually, have a lower ESG Vector Score, lower carbon risk rating, or higher emissions relative to the weighted average of the Eligible Universe. The optimization process also includes constituent, liquidity, turnover, sector, industry group and weight constraints so that these characteristics in the Underlying Index vary within acceptable bands relative to the Eligible Universe. As of December 31, 2025, the Underlying Index was comprised of 134 constituents with market capitalizations ranging from $9.4 billion to $4.5 trillion. The Underlying Index will be reconstituted quarterly under normal market conditions. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts and options on futures contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). The Fund is “non-diversified” under the Investment Company Act of 1940 (“1940 Act”), as amended, and may invest more of its assets in fewer issuers than “diversified” funds. Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust ESG & Climate Developed Markets ex-US Core ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index, administered by NTI in its capacity as index provider (the “Index Provider”), is designed to reflect the performance of a selection of companies that exhibit certain environmental, social and governance (“ESG”) characteristics in the aggregate, while also seeking to provide broad-market, core exposure to publicly traded equity securities issued by companies domiciled in developed market countries, excluding the U.S., i.e., the constituents in the Northern Trust Developed Markets ex-US Large Cap IndexSM (the “Eligible Universe”). The Northern Trust Developed Markets ex-US Large Cap IndexSM is a sub-index of the Northern Trust Global IndexSM, where eligible securities are limited to those of companies that are domiciled in non-U.S. developed market countries and designated as large- or mid-capitalization companies by NTI. As of December 31, 2025, the Index Provider classifies the following as developed market countries outside of the U.S.: Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Hong Kong, Ireland, Israel, Italy, Japan, Netherlands, New Zealand, Norway, Portugal, Singapore, Spain, Sweden, Switzerland and United Kingdom. The Underlying Index starts by excluding certain companies from the Eligible Universe that, based on third-party data, are determined to have certain levels of controversial business involvement or behavior, including in tobacco, weaponry, thermal coal, unconventional oil and gas, and for-profit prisons, or to have caused, contributed to or are linked to certain violations of international norms and standards. Such exclusions are based on percentage of revenue thresholds for certain categories (e.g., those that receive significant revenue from production, retail and distribution of civilian weapons) and categorical exclusions for others (e.g., tobacco producers). The above-described exclusionary screens are applied with each reconstitution of the Underlying Index. The Index Provider may modify this list of excluded companies at any time, at its own discretion. The Underlying Index next applies an optimization process to minimize variance to the Eligible Universe while also targeting certain ESG characteristics, which is designed to produce an index that, relative to the Eligible Universe: (a) has an aggregate higher scoring of certain ESG characteristics, as measured by the Northern Trust ESG Vector Score (“ESG Vector Score”) described below, (b) improves the carbon risk rating, as measured by certain carbon-related risk metrics, and (c) decreases the weighted average carbon intensity and potential emissions. The ESG Vector Score is designed to rank companies based on their management of and exposure to material ESG metrics as defined by the Sustainability Accounting Standards Board (“SASB”) Standards. In addition, the Index Provider uses available data from Institutional Shareholder Services ESG Solutions to assess carbon emissions intensity, carbon reserves and a carbon risk rating. Carbon emissions intensity measures (i) direct greenhouse gas emissions from sources controlled or owned by the company (e.g., emissions associated with fuel combustion in boilers, furnaces, or vehicles); and (ii) indirect greenhouse gas emissions associated with the purchase of electricity, steam, heat or cooling against sales by the company. Carbon reserves measure the total estimated greenhouse gas emissions attributable to a company’s fossil fuel reserve assets. The carbon risk rating provides an assessment of a company’s ability to mitigate the risks of transition to a lower carbon economy based on its specific baseline carbon risk exposure. In the event that metrics or other data used to construct the ESG Vector Score as well as carbon emissions intensity, carbon reserves and/or the carbon risk rating are not available or otherwise deemed unreliable, NTI may make reasonable estimates or otherwise exercise its discretion to implement the optimization process. Notwithstanding the optimization process, it is possible that the Underlying Index will include (and therefore the Fund could invest in) securities that, individually, have a lower ESG Vector Score, lower carbon risk rating, or higher emissions relative to the weighted average of the Eligible Universe. The optimization process also includes constituent, liquidity, turnover, country, region, sector, industry group and weight constraints so that these characteristics in the Underlying Index vary within acceptable bands relative to the Eligible Universe. As of December 31, 2025, the Underlying Index was comprised of 219 constituents with market capitalizations ranging from $7.2 billion to $421.6 billion. The Underlying Index is reconstituted quarterly under normal market conditions. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts, options on futures contracts and forward currency contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Fund usually, but not always, pursues a strategy of being fully invested by exposing all or a portion of its cash to the performance of certain markets by purchasing index futures contracts (also known as “equitization”). This is intended to cause the Fund to perform as though its cash were actually invested in those markets. This futures exposure may or may not match the Fund’s Underlying Index and create indirect exposure to companies that have been excluded from the Underlying Index. The Fund will not invest directly in securities that have been excluded from the Fund’s Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). From time to time the Fund may focus its investments (i.e., invest more than 15% of its total) in one or more particular countries or geographic regions. As of December 31, 2025, the Fund focused its investments in Japan. Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Financial sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Financial sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust Morningstar Global Upstream Natural Resources ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a selection of equity securities that are traded in or are issued by companies classified as developed or emerging markets (including the U.S.), as determined by Morningstar, Inc. (the “Index Provider”) pursuant to its index methodology. To be eligible for inclusion in the Underlying Index, a security must be issued by a company that has significant economic interests in one of the following natural resource categories: energy, agriculture, precious or industrial metals, timber or water, as determined by the Index Provider pursuant to its index methodology (collectively, the “Natural Resources sector”). Securities determined to be within the Natural Resources sector are then excluded from the Underlying Index if (i) they have an average daily traded value (three-month) of less than $1 million or (ii) for securities within the energy, agriculture or precious or industrial metals categories of the Natural Resources sector, they have a float market capitalization of less than $1 billion, or for securities within the timber or water categories of the Natural Resources sector, they have a float market capitalization of less than $500 million. The largest stocks within each category are targeted for inclusion. Securities within the Underlying Index are then weighted based on their float adjusted market capitalization within each category of the Natural Resources sector, and weight caps are applied to limit exposure to any particular category within the Natural Resources sector, any individual security, the U.S. and emerging markets. As of December 31, 2025, the Underlying Index was comprised of 120 issues with market capitalizations ranging from $1.777 billion to $1.536 trillion. The Underlying Index is reconstituted on a semi-annual basis and is rebalanced quarterly. The Fund generally rebalances and reconstitutes its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts, options on futures contracts and forward currency contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is sponsored by the Index Provider, an organization that is independent of the Fund and NTI. The Index Provider determines the composition and rela tive weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). From time to time the Fund may focus its investments (i.e., invest more than 15% of its total assets) in one or more particular countries or geographic regions. As of December 31, 2025, the Fund focused its investments in the U.S. and Canada. Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Natural Resources sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Natural Resources sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust STOXX Global Broad Infrastructure ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a selection of companies that, in aggregate, offer broad exposure to publicly traded developed- and emerging-market infrastructure companies, including U.S. companies, as defined by STOXX Ltd. (the “Index Provider”) pursuant to its index methodology. In addition, NTI believes that the companies in the Underlying Index have the potential to generate income through dividend and other payments received. To be eligible for inclusion in the Underlying Index, companies must generate at least 50% of their respective revenues from the ownership, development, construction, financing or operation of infrastructure-related assets in the following five supersector groups (the “Infrastructure Sectors”): (i) communication (i.e., cable and satellite, data centers, wireless, wireless towers and wireline); (ii) energy (i.e., energy utilities and mid-stream energy); (iii) government outsourcing/social (i.e., correctional facilities, hospitals and postal services); (iv) transportation (i.e., air trans portation, passenger transportation, rail transportation, road transportation and water transportation); and (v) utilities (i.e., waste management and water utilities). Securities must also meet a certain minimum liquidity criteria: 3-month average daily trading volume (ADTV) greater than one million USD. Eligible securities are then selected based on largest free-float adjusted market capitalization, with a maximum of 40 securities from each supersector group and with a cap on the number of constituent securities among the sector groups of each supersector group. To prevent companies, supersectors and countries from dominating the portfolio, the Underlying Index also includes constituent, supersector and country weight caps (“Weight Caps”). Constituents of the Underlying Index may include common and preferred stocks, publicly-traded units of master limited partnerships (“MLPs”) and real estate investment trusts (“REITs”). As of December 31, 2025, the Underlying Index was comprised of 170 issues with market capitalizations ranging from $178.5 million to $176.1 billion. The Underlying Index is reconstituted on an annual basis and the Weight Caps are applied on a quarterly basis. The Fund generally reconstitutes or otherwise modifies its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts, options on futures contracts and forward currency contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is sponsored by the Index Provider, an organization that is independent of the Fund and NTI. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). From time to time the Fund may focus its investments (i.e., invest more than 15% of its total assets) in one or more particular countries or geographic regions. As of December 31, 2025, the Fund focused its investments in the U.S. Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Infrastructure Sectors. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index.
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| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Infrastructure Sectors. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust Global Quality Real Estate ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a selection of companies that, in aggregate, maximize exposure to quality, value and momentum factors, within a universe of companies operating in the real estate sector. In order to be eligible for inclusion in the Underlying Index, a security must be a constituent of the Northern Trust Global Real Estate Index (the “Parent Index”), a float-adjusted market-capitalization weighted index of publicly-traded equity securities of U.S. and non-U.S. real estate investment trusts (REITs) and real estate operating companies. In addition, the Underlying Index utilizes the proprietary Northern Trust quality factor to identify companies that exhibit strength in profitability, management expertise and cash flow, while value and momentum factors are included to help provide long term capital appreciation and also mitigate risk. To derive the Underlying Index, NTI, acting in its capacity as index provider (the “Index Provider”), ranks all constituents of the Parent Index using a Northern Trust pro prietary blended multi-factor score. This score is designed to measure companies based on the quantitative assessment of their respective (a) quality (i.e., a factor that seeks to identify companies that exhibit financial strength and stability relative to the Parent Index); (b) value (i.e., a factor reflecting the current worth a company relative to its own historical value, book value or valuation versus peers); and (c) momentum (i.e., a factor that reflects market sentiment and changes in security price over a given time period). The Index Provider then uses an optimization process to select and weight eligible securities in order to maximize the overall blended multi-factor score relative to the Parent Index. The optimization also includes industry group, region, country, style factor, single-security weight, liquidity and turnover constraints so that these index characteristics vary within acceptable bands relative to the Parent Index. A company must meet the following criteria to be eligible for inclusion in the Underlying Index: (a) a constituent of the Parent Index; and (b) it must be classified under the business sector of “Real Estate” by Reference Data Business Classification or have registered as a real estate investment trust under its applicable local tax code. Companies classified under the business activities of Mortgage REITs and Real Estate Services (NEC) by Reference Data Business Classification are excluded from the Underlying Index. The Underlying Index is reconstituted on a quarterly basis. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. As of December 31, 2025, the Underlying Index was comprised of 131 issues with market capitalizations ranging from $937.3 million to $128.2 billion. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts, options on futures contracts and forward currency contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). From time to time the Fund may focus its investments (i.e., invest more than 15% of its total assets) in one or more particular countries or geographic regions. As of December 31, 2025, the Fund focused its investments in the U.S. Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Real Estate sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Real Estate sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust Quality Dividend ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a selection of companies that, in aggregate, provide exposure to a high-quality income-oriented universe of long-only U.S. equity securities, with an emphasis on long-term capital growth and a targeted overall beta that is similar to that of the Northern Trust 1250 Index (the “Parent Index”), a float-adjusted market-capitalization weighted index of U.S. domiciled large- and mid-capitalization companies. Beta represents the market sensitivity, relative to a given market index and time period, and is one measure of volatility. To derive the Underlying Index, NTI, acting in its capacity as the index provider (the “Index Provider”), begins with all securities in the Parent Index and then removes those securities that rank in the lowest quintile of quality based on a proprietary scoring model, as well as those which do not pay a dividend. The core components of the propri etary quality scoring model are based on quantitative ranking of various metrics obtained from company filings. These scores have three components: (i) management efficiency (e.g., corporate finance activities); (ii) profitability (e.g., reliability and sustainability of financial performance); and (iii) cash flow (e.g., cash flow generation). The Index Provider then uses an optimization process to select and weight eligible securities in order to (a) maximize the overall quality score relative to the Parent Index; (b) attain an aggregate dividend yield in excess of the Parent Index; and (c) achieve the desired beta target. The optimization process also includes sector, industry group, single-security weight, liquidity and turnover constraints to assist in reducing the Underlying Index’s overall active risk exposure to any one single factor. As of December 31, 2025, there were 120 issues in the Underlying Index. The Underlying Index is reconstituted quarterly. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” its Underlying Index and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts and options on futures contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust Quality Dividend Defensive ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a selection of companies that, in aggregate, provide exposure to a high-quality income-oriented universe of long-only U.S. equity securities, with an emphasis on long-term capital growth and a targeted overall beta that is generally between 0.5 to 1.0 times that of the Northern Trust 1250 Index (the “Parent Index”), a float-adjusted market-capitalization weighted index of U.S. domiciled large- and mid-capitalization companies. Beta represents the market sensitivity, relative to a given market index and time period, and is one measure of volatility. To derive the Underlying Index, NTI, acting in its capacity as the index provider (the “Index Provider”), begins with all securities in the Parent Index and then removes those securities that rank in the lowest quintile of quality based on a proprietary scoring model, as well as those which do not pay a dividend. The core components of the propri etary quality scoring model are based on quantitative ranking of various metrics obtained from company filings. These scores have three components: (i) management efficiency (e.g., corporate finance activities); (ii) profitability (e.g., reliability and sustainability of financial performance); and (iii) cash flow (e.g., cash flow generation). The Index Provider then uses an optimization process to select and weight eligible securities in order to (a) maximize the overall quality score relative to the Parent Index, (b) attain an aggregate dividend yield in excess of the Parent Index and (c) achieve the desired beta target. The optimization process also includes sector, industry group, single-security weight, liquidity and turnover constraints to assist in reducing the Underlying Index’s overall active risk exposure to any one single factor. As of December 31, 2025, there were 128 issues in the Underlying Index. The Underlying Index is reconstituted quarterly. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” its Underlying Index and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts and options on futures contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Information Technology sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust International Quality Dividend ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a selection of companies that, in aggregate, provide exposure to a high-quality income-oriented universe of long-only international securities issued by non-U.S.- based companies, with an emphasis on long-term capital growth and a targeted overall beta that is similar to that of the Northern Trust International Large Cap Index (the “Parent Index”), a float-adjusted market-capitalization weighted index of non-US domiciled large- and mid-capitalization companies. Beta represents the market sensitivity, relative to a given market index and time period, and is one measure of volatility. To derive the Underlying Index, NTI, acting in its capacity as the index provider (the “Index Provider”), begins with all securities in the Parent Index that have an average daily traded value of at least $125,000 in the 90 days prior to a reconstitution, and then removes those securities that rank in the lowest quintile of quality based on a proprietary scoring model, as well as those which do not pay a divi dend. The core components of the proprietary quality scoring model are based on quantitative ranking of various metrics obtained from company filings. These scores have three components: (i) management efficiency (e.g., corporate finance activities); (ii) profitability (e.g., reliability and sustainability of financial performance); and (iii) cash flow (e.g., cash flow generation). The Index Provider then uses an optimization process to select and weight eligible securities in order to (a) maximize the overall quality score relative to the Parent Index; (b) attain an aggregate dividend yield in excess of the Parent Index; and (c) achieve the desired beta target. The optimization process also includes sector, industry group, region, country, single-security weight, liquidity and turnover constraints to assist in reducing the Underlying Index’s overall active risk exposure to any one single factor. As of December 31, 2025, there were 199 issues in the Underlying Index. The Underlying Index is reconstituted quarterly. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” its Underlying Index and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts, options on futures contracts and foreign currency contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). From time to time the Fund may focus its investments (i.e., invest more than 15% of its total) in one or more particular countries or geographic regions. Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Financial sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Financial sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust International Quality Dividend Dynamic ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a selection of companies that, in aggregate, provide exposure to a high-quality income-oriented universe of long-only international securities issued by non-U.S.-based companies, with an emphasis on long-term capital growth and a targeted overall beta that is generally between 1.0 to 1.5 times that of the Northern Trust International Large Cap Index (the “Parent Index”), a float-adjusted market-capitalization weighted index of non-US domiciled large- and mid-capitalization companies. Beta represents the market sensitivity, relative to a given market index and time period, and is one measure of volatility. To derive the Underlying Index, NTI, acting in its capacity as the index provider (the “Index Provider”), begins with all securities in the Parent Index that have an average daily traded value of at least $125,000 in the 90 days prior to a reconstitution, and then removes those securities that rank in the lowest quintile of quality based on a proprietary scoring model, as well as those which do not pay a divi dend. The core components of the proprietary quality scoring model are based on quantitative ranking of various metrics obtained from company filings. These scores have three components: (i) management efficiency (e.g., corporate finance activities); (ii) profitability (e.g., reliability and sustainability of financial performance); and (iii) cash flow (e.g., cash flow generation). The Index Provider then uses an optimization process to select and weight eligible securities in order to (a) maximize the overall quality score relative to the Parent Index, (b) attain an aggregate dividend yield in excess of the Parent Index and (c) achieve the desired beta target. The optimization process also includes sector, industry group, region, country, single-security weight, liquidity and turnover constraints to assist in reducing the Underlying Index’s overall active risk exposure to any one single factor. As of December 31, 2025, there were 187 issues in the Underlying Index. The Underlying Index is reconstituted quarterly. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” its Underlying Index and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts, options on futures contracts and foreign currency contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). From time to time the Fund may focus its investments (i.e., invest more than 15% of its total assets) in one or more particular countries or geographic regions. Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Financial sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) (collectively “Depositary Receipts”) based on the securities in the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Financial sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust iBoxx 3-Year Target Duration TIPS ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a selection of inflation protected public obligations of the U.S. Treasury, commonly known as “TIPS,” with a targeted average modified adjusted duration, as defined by S&P Dow Jones Indices LLC as the Index Provider (“Index Provider” or “SPDJI”), of approximately three years. The Underlying Index includes publicly issued TIPS that have maturity dates of at least or equal to one year and less than ten years from an index rebalancing date. TIPS are securities issued by the U.S. Treasury that are designed to provide inflation protection to investors. TIPS’ principal and interest payments are linked to an official inflation measure (as measured by the Consumer Price Index for All Urban Consumers, or CPI-U) and the payments are supported by the full faith and credit of the United States. As of December 31, 2025, there were 23 TIPS in the Underlying Index. The components of the Underlying Index are weighted by the Index Provider to achieve the targeted average modified adjusted duration and its composition is rebalanced monthly. The Fund generally rebalances its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI generally intends to replicate the constituent securities of the Fund’s Underlying Index. “Replication” is an indexing strategy in which a fund invests in substantially all of the securities in its underlying index in approximately the same proportions as in the underlying index. NTI may use a “representative sampling” strategy in certain circumstances, such as when it may not be possible or practicable to fully implement a replication strategy. Representative sampling is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. When the Fund uses representative sampling, it may or may not hold all of the securities that are included in the Underlying Index. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts and options on futures contracts, to-be-announced (“TBA”) transactions, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is sponsored by the Index Provider, an organization that is independent of the Fund and NTI. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. For purposes of this limitation, securities of the U.S. government (including its agencies and instrumentalities) are not considered to be issued by members of any industry.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. For purposes of this limitation, securities of the U.S. government (including its agencies and instrumentalities) are not considered to be issued by members of any industry. |
| Northern Trust iBoxx 5-Year Target Duration TIPS ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a selection of inflation protected public obligations of the U.S. Treasury, commonly known as “TIPS,” with a targeted average modified adjusted duration, as defined by S&P Dow Jones Indices LLC as the Index Provider (“Index Provider” or “SPDJI”), of approximately five years. The Underlying Index includes publicly issued TIPS that have maturity dates of at least or equal to three years and less than twenty years from an index rebalancing date. TIPS are securities issued by the U.S. Treasury that are designed to provide inflation protection to investors. TIPS’ principal and interest payments are linked to an official inflation measure (as measured by the Consumer Price Index for All Urban Consumers, or CPI-U) and the payments are supported by the full faith and credit of the United States. As of December 31, 2025, there were 19 TIPS in the Underlying Index. The components of the Underlying Index are weighted by the Index Provider to achieve the targeted average modified adjusted duration and its composition is rebalanced monthly. The Fund generally rebalances its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI generally intends to replicate the constituent securities of the Fund’s Underlying Index. “Replication” is an indexing strategy in which a fund invests in substantially all of the securities in its underlying index in approximately the same proportions as in the underlying index. NTI may use a “representative sampling” strategy in certain circumstances, such as when it may not be possible or practicable to fully implement a replication strategy. Representative sampling is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. When the Fund uses representative sampling, it may or may not hold all of the securities that are included in the Underlying Index. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts and options on futures contracts, to-be-announced (“TBA”) transactions, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is sponsored by the Index Provider, an organization that is independent of the Fund and NTI. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. For purposes of this limitation, securities of the U.S. government (including its agencies and instrumentalities) are not considered to be issued by members of any industry.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. For purposes of this limitation, securities of the U.S. government (including its agencies and instrumentalities) are not considered to be issued by members of any industry. |
| Northern Trust Disciplined Duration MBS ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a selection of investment-grade US agency residential mortgage backed pass-through securities. The term “US agency mortgage-backed pass-through security” (“MBS”) refers to a category of pass-through securities backed by pools of mortgages and issued by one of the following US government agencies: the Federal National Mortgage Association (FNMA or Fannie Mae), the Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac) or the Government National Mortgage Association (GNMA or Ginnie Mae) (each a “US Agency”). The Underlying Index is formed by grouping the universe of individual fixed-rate MBS pools into generic cohorts. These generic cohorts are then assessed based on certain criteria, as determined by ICE Data Indices, LLC as the Index Provider (“Index Provider” or “ICE”), to determine eligibility for inclusion in the Underlying Index. The constituent securities of the Underlying Index are MBS pools that represent generic cohorts included in the Underlying Index. MBS that are eligible for inclusion in the Underlying Index must (a) be publicly issued by a US Agency, (b) have a weighted average remaining time to final stated maturity of at least one year, (c) have at least $5 billion or more of outstanding face value in the coupon for a given agency program, (d) have at least $1 billion or more of outstanding face value at the time of inclusion in the Underlying Index and at least $250 million to remain in the Underlying Index and (e) are characterized by one or more of the following fixed-rate mortgage programs: 30-year, 20-year, and 15-year maturities. The Underlying Index constituents are capitalization-weighted, based on their outstanding face value times price plus accrued interest, adjusted by the Index Provider, to achieve an effective duration that is generally between 3.25 and 4.25 years. Balloon, mobile home, graduated payment and quarter coupon fixed rate mortgages are excluded from the Underlying Index, as are all collateralized mortgage obligations. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. The Fund generally will invest under normal circumstances at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in “TBA Transactions” (defined below) that represent securities in the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts and options on futures contracts, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. Most transactions in mortgage pass-through securities occur through standard ized contracts for future delivery in which the exact mortgage pools to be delivered are not specified until a few days prior to settlement, referred to as a “to-be announced transaction” or “TBA Transaction.” In a TBA Transaction, the buyer and seller agree upon general trade parameters such as agency, coupon rate, settlement date, par amount and price. The actual pools delivered generally are determined two days prior to the settlement date. The Fund expects to enter into such contracts on a regular basis, and pending settlement of such contracts, the Fund will invest its assets in liquid, short-term instruments, which may include shares of money market funds advised by NTI or its affiliates. The Fund will assume its pro rata share of the fees and expenses of any money market fund, in which it may invest, in addition to the Fund’s own fees and expenses. The Underlying Index is sponsored by the Index Provider. The Index Provider is not affiliated with the Fund or NTI. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index in accordance with a published methodology and disseminates information regarding the market value of the Underlying Index. The Underlying Index is rebalanced on the last calendar day of each month. The Fund generally rebalances its portfolio in accordance with the Underlying Index. As of December 31, 2025, there were 554 MBS in the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. For purposes of this limitation, securities of the U.S. government (including its agencies and instrumentalities) are not considered to be issued by members of any industry.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | The Fund generally will invest under normal circumstances at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index and in “TBA Transactions” (defined below) that represent securities in the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. For purposes of this limitation, securities of the U.S. government (including its agencies and instrumentalities) are not considered to be issued by members of any industry. |
| Northern Trust Credit-Scored US Corporate Bond ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a diversified universe of intermediate maturity, US-dollar denominated bonds of companies with investment grade credit quality, favorable valuations, and enhanced short-term and long-term solvency. Securities eligible for inclusion in the Underlying Index must meet the following criteria at each reconstitution of the Underlying Index: (a) they are issued in U.S. dollars; (b) they are publicly issued in the U.S. and registered with the SEC or eligible for resale under Rule 144A under the Securities Act of 1933; (c) they fall within a specified list of eligible security types; (d) they are either senior or subordinated debts; (e) they have a minimum credit rating of Baa3 or BBB-; (f) they have a final maturity of at least one year and up to (but not including) 10 years; and (g) they have $250 million or more in outstanding principal. Once all eligible securities have been identified, the Underlying Index then follows a rules-based methodology to select and weight securities, subject to certain constraints as described below, to optimize the Underlying Index’s exposure to a combined proprietary value score and a proprietary quality score, as determined by NTI acting in its capacity as index provider (“Index Provider”). Each of the value score and the quality score are based on various metrics obtained from company filings and recent price activity. The value score has multiple components, including: (a) valuation (e.g., to assess the relative value of the security versus other similar securities); (b) spread analysis (e.g., to assess the risk/return trade-off associated with each security versus other similar securities); and (c) solvency (e.g., to assess the corporation’s short term and long term solvency and also its risk of default). The quality score has three components: (i) management efficiency (e.g., corporate finance activities); (ii) profitability (e.g., reliability and sustainability of financial performance); and (iii) solvency. The primary objective of the optimization process is to maximize exposure to securities with the highest value and quality scores and to maintain a similar effective duration profile relative to the Underlying Index's eligible universe. In addition, the optimization process also includes security level, sector, issuer level, low value and quality, duration band, and turnover constraints to seek to manage systematic risk. As of December 31, 2025, there were 2,581 issues in the Underlying Index. The Underlying Index is reconstituted monthly. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. The Fund generally will invest under normal circumstances at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of its Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts and options on futures, to-be-announced (“TBA”) transactions, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Financial sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | The Fund generally will invest under normal circumstances at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of its Underlying Index.
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| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Financial sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust Credit-Scored US Long Corporate Bond ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a diversified universe of longer term maturity, US-dollar denominated bonds of companies with investment grade credit quality, favorable valuations, and enhanced short-term and long-term solvency. Securities eligible for inclusion in the Underlying Index must meet the following criteria at each reconstitution of the Underlying Index: (a) they are issued in U.S. dollars; (b) they are publicly issued in the U.S. and registered with the SEC or eligible for resale under Rule 144A under the Securities Act of 1933; (c) they fall within a specified list of eligible security types; (d) they are either senior or subordinated debts; (e) they have a minimum credit rating of Baa3 or BBB-; (f) they have a final maturity of 10 years or greater; and (g) they have $250 million or more in outstanding principal. Once all eligible securities have been identified, the Underlying Index then follows a rules-based methodology to select and weight securities, subject to certain constraints as described below, to optimize the Underlying Index’s exposure to a combined proprietary value score and a proprietary quality score, as determined by NTI acting in its capacity as index provider (“Index Provider”). Each of the value score and the quality score are based on various metrics obtained from company filings and recent price activity. The value score has multiple components, including: (a) valuation (e.g., to assess the relative value of the security versus other similar securities); (b) spread analysis (e.g., to assess the risk/return trade-off associated with each security versus other similar securities); and (c) solvency (e.g., to assess the corporation’s short term and long term solvency and also its risk of default). The quality score has three components: (i) management efficiency (e.g., corporate finance activities); (ii) profitability (e.g., reliability and sustainability of financial performance); and (iii) solvency. The primary objective of the optimization process is to maximize exposure to securities with the highest value and quality scores and to maintain a similar effective duration profile relative to the Underlying Index’s eligible universe. In addition, the optimization process also includes security level, sector, issuer level, low value and quality, duration band, and turnover constraints to seek to manage systematic risk. As of December 31, 2025, there were 1,515 issues in the Underlying Index. The Underlying Index is reconstituted monthly. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. The Fund generally will invest under normal circumstances at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of its Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts and options on futures, to-be-announced (“TBA”) transactions, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | The Fund generally will invest under normal circumstances at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of its Underlying Index.
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| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. |
| Northern Trust High Yield Value-Scored Bond ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index is designed to reflect the performance of a diversified universe of high yield, U.S.-dollar denominated bonds of companies exhibiting favorable fundamental qualities, market valuations and liquidity, as defined by NTI’s proprietary scoring models. The securities included in the Underlying Index are a subset of the securities included in the Northern Trust High Yield US Corporate Bond IndexSM (the “Parent Index”), which is a market-capitalization weighted index comprised of U.S. dollar-denominated high yield corporate bonds. The Underlying Index begins with the Parent Index and then follows a rules-based methodology to select and weight securities, subject to certain constraints, to optimize exposure to a proprietary value score, credit score, and liquidity score, each as determined by NTI acting in its capacity as index provider (“Index Provider”). The core components of the proprietary value score and proprietary credit score are based on quantitative rankings of various metrics obtained from company filings and recent price activity. The value score has multiple components, including: (a) valuation (e.g., to assess the relative value of the security versus other similar securities); (b) spread analysis (e.g., to assess the risk/return trade-off associated with each security versus other similar securities); and (c) solvency (e.g., to assess the corporation’s short term and long term solvency and also its risk of default). The credit score has three components: (i) management expertise (e.g., corporate finance activities); (ii) profitability (e.g., reliability and sustainability of financial performance); and (iii) solvency. The core components of the proprietary liquidity score are based on a quantitative ranking of security characteristics obtained from company filings. Examples of data sets utilized to determine the liquidity score include: (x) time to maturity (e.g., time until the security reaches its maturity date as measured in in years); (y) total issuer debt outstanding (e.g., the sum of all debt outstanding for a single corporate issuer); and (z) time since original issuance (e.g., the time that has elapsed since the security was originally issued as measured in years). The primary objective of the optimization process is to maximize exposure to the value score relative to the Underlying Index's eligible universe. In addition, the optimization process also includes issuer level, sector, effective duration, low credit and liquidity score, duration band, and turnover constraints to seek to manage systematic risk. The inception date of the Underlying Index was April 30, 2018. As of December 31, 2025, there were 1,132 issues in the Underlying Index. The Underlying Index is reconstituted monthly. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI intends to use representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. The Fund generally will invest under normal circumstances at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of its Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts and options on futures, to-be-announced (“TBA”) transactions, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Industrials sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | The Fund generally will invest under normal circumstances at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of its Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Industrials sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust ESG & Climate Investment Grade Corporate Core ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Underlying Index, administered by NTI in its capacity as index provider (the “Index Provider”), is designed to reflect the performance of a selection of U.S.-dollar-denominated corporate bonds issued by companies that exhibit certain environmental, social and governance (“ESG”) characteristics in the aggregate, while also seeking to provide exposure to US dollar-denominated corporate bonds, i.e., the constituents in the Northern Trust Investment Grade U.S. Corporate Bond IndexSM (the “Eligible Universe”). The Northern Trust Investment Grade U.S. Corporate Bond IndexSM is a market-capitalization weighted index comprised of US dollar-denominated corporate bonds that (a) are publicly issued in the United States and registered with the SEC or eligible for resale under Rule 144A under the Securities Act of 1933, with or without registration rights, (b) are rated investment grade (i.e., rated at the time of inclusion in the Eligible Universe within the top four ratings categories by a Nationally Recognized Statistical Rating Organization (“NRSRO”)), and (c) have, at each rebalance, (i) a final time to stated maturity of at least one year and (ii) an outstanding principal balance of at least $250 million. The Fund does not have any portfolio maturity limitation and may invest its assets from time to time in instruments with varying maturities. The Underlying Index starts by excluding certain companies from the Eligible Universe that, based on third-party data, are determined to have certain levels of controversial business involvement or behavior, including in tobacco, weaponry, thermal coal, unconventional oil and gas, and for-profit prisons, or to have caused, contributed to or are linked to certain violations of international norms and standards. Such exclusions are based on percentage of revenue thresholds for certain categories (e.g., those that receive significant revenue from production, retail and distribution of civilian weapons) and categorical exclusions for others (e.g., tobacco producers). The above-described exclusionary screens are applied with each reconstitution of the Underlying Index. The Index Provider may modify this list of excluded companies at any time, at its own discretion. The Underlying Index next applies an optimization process to minimize variance to the Eligible Universe while also targeting certain ESG characteristics, which is designed to produce an index that, relative to the Eligible Universe: (a) has an aggregate higher scoring of certain ESG characteristics, as measured by the Northern Trust ESG Vector Score (“ESG Vector Score”) described below, (b) improves the carbon risk rating, as measured by certain carbon-related risk metrics, and (c) decreases the weighted average carbon intensity and potential emissions. The ESG Vector Score is designed to rank companies based on their management of and exposure to material ESG metrics as defined by the Sustainability Accounting Standards Board (“SASB”) Standards. In addition, the Index Provider uses available data from Institutional Shareholder Services ESG Solutions to assess carbon emissions intensity, carbon reserves and a carbon risk rating. Carbon emissions intensity measures (i) direct greenhouse gas emissions from sources controlled or owned by the company (e.g., emissions associated with fuel combustion in boilers, furnaces, or vehicles); and (ii) indirect greenhouse gas emissions associated with the purchase of electricity, steam, heat or cooling against the company. Carbon reserves measure the total estimated greenhouse gas emissions attributable to a company’s fossil fuel reserve assets. The carbon risk rat ing provides an assessment of a company’s ability to mitigate the risks of transition to a lower carbon economy based on its specific baseline carbon risk exposure. In the event that metrics or other data used to construct the ESG Vector Score as well as carbon emissions intensity, carbon reserves and/or the carbon risk rating are not available or otherwise deemed unreliable, NTI may make reasonable estimates or otherwise exercise its discretion to implement the optimization process. Notwithstanding the optimization process, it is possible that the Underlying Index will include (and therefore the Fund could invest in) securities that, individually, have a lower ESG Vector Score, lower carbon risk rating, or higher emissions relative to the weighted average of the Eligible Universe. The optimization process also includes sector, country, turnover, issuer and constituent constraints so that these characteristics in the Underlying Index vary within acceptable bands relative to the Eligible Universe. As of December 31, 2025, there were 4,138 issues in the Underlying Index. The Underlying Index is reconstituted monthly under normal market conditions. The Fund generally reconstitutes its portfolio in accordance with the Underlying Index. NTI uses a “passive” or indexing approach to try to achieve the Fund’s investment objective. Unlike many investment companies, the Fund does not try to “beat” the index it tracks and does not seek temporary defensive positions when markets decline or appear overvalued. NTI uses a representative sampling strategy to manage the Fund. “Representative sampling” is investing in a representative sample of securities that collectively has an investment profile similar to the Underlying Index. The Fund may or may not hold all of the securities that are included in the Underlying Index. The Fund reserves the right to invest in substantially all of the securities in its Underlying Index in approximately the same proportions (i.e., replication) if NTI determines that it is in the best interest of the Fund. Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. The Fund may also invest up to 20% of its assets in cash and cash equivalents, including shares of money market funds advised by NTI or its affiliates, futures contracts and options on futures contracts, to-be-announced (“TBA”) transactions, as well as securities not included in the Underlying Index, but which NTI believes will help the Fund track its Underlying Index. The Underlying Index is created and sponsored by NTI, as the Index Provider. NTI also serves as the investment adviser to the Fund. The Index Provider determines the composition and relative weightings of the securities in the Underlying Index and publishes information regarding the market value of the Underlying Index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Financial sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the Underlying Index. |
| Strategy Portfolio Concentration [Text] | Industry Concentration Policy. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Underlying Index is concentrated. As of December 31, 2025, the Underlying Index was concentrated in the Financial sector. The components of the Underlying Index, and the degree to which these components represent certain industries or sectors, may change over time. |
| Northern Trust Ultra-Short Fixed Income ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its total assets in a portfolio of fixed-income instruments, including bonds, debt securities and other similar instruments issued by U.S. and non-U.S. public and private sector entities. Such issuers include, without limitation, U.S. and non-U.S. governments and their agencies, instrumentalities or sponsored enterprises, U.S. state and local governments and municipalities, and U.S. and non-U.S. private-sector entities, such as corporations and banks. The average portfolio duration of this Fund will vary based on The Northern Trust Company Investment Policy Committee’s forecast for interest rates and will normally not exceed one year. Duration measures the price sensitivity of a fixed-income security to changes in interest rates. Interest rate changes have a greater effect on the price of fixed-income securities with longer durations. The dollar-weighted average portfolio maturity of the Fund is normally not expected to exceed two years. The Fund invests in investment grade debt securities (i.e., securities that are, at the time of investment, rated within the top four rating categories by a Nationally Recognized Statistical Rating Organization (“NRSRO”) or of comparable quality as determined by NTI). The Fund may invest, without limitation, in fixed-income securities and instruments of foreign issuers in developed markets, including debt securities of foreign governments, and may invest more than 25% of its total assets in securities and instruments of issuers in a single developed market country. The Fund may invest up to 20% of its total assets in fixed-income securities and instruments of issuers in emerging markets. The Fund may invest, without limitation, in mortgage- or asset-backed securities, including to-be-announced (“TBAs”) transactions, and purchase and sell securities on a when-issued, delayed delivery or forward commitment basis. The Fund also may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts (such as buy backs or mortgage dollar rolls). The Fund may engage in forward foreign currency transactions for hedging purposes in order to protect against uncertainty in the level of future foreign currency exchange rates, to facilitate local settlements or to protect against currency exposure in connection with its distributions to shareholders. The Fund, however, does not expect to engage in currency transactions for speculative purposes (e.g., for potential income or capital gain). In seeking to achieve its investment objective, the Fund may invest in U.S. Treasury futures contracts, which are considered to be derivative instruments, for various purposes, including to manage duration, credit and interest rate risks, and for cash management. The Fund is an actively managed ETF that does not seek to replicate the performance of a specified index. The Fund may have a higher degree of portfolio turnover than funds that seek to replicate the performance of an index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received). From time to time the Fund may focus its investments (i.e., invest more than 15% of its total assets) in one or more particular sectors. As of December 31, 2025, the Fund focused its investments in the Financial sector.
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its total assets in a portfolio of fixed-income instruments, including bonds, debt securities and other similar instruments issued by U.S. and non-U.S. public and private sector entities. |
| Northern Trust Core Bond ETF | |
| Prospectus [Line Items] | |
| Strategy [Heading] | Principal Investment Strategies |
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its net assets in U.S. dollar-denominated investment-grade fixed-income securities either directly or indirectly through exchange-traded funds ("ETFs") and other registered investment companies (together with ETFs, “Underlying Funds”). The Fund primarily invests in fixed-income securities of varying maturities, including bonds, debt securities and other similar instruments issued by U.S. public and U.S and non-U.S. private sector entities. Such issuers include, without limitation, U.S. governments and their agencies, instrumentalities or sponsored enterprises, and U.S. and non-U.S. private-sector entities, such as corporations and banks. The Fund may invest in fixed income securities of any maturity. The Fund seeks to provide attractive risk-adjusted performance by investing in a portfolio of fixed-income securities and Underlying Funds. The Fund generally adjusts its allocations to securities based on NTI’s assessment of potential changes in interest rate levels, the shape of the yield curve and credit spread relationships. The Fund also seeks to balance the potential for return and risk while emphasizing liquidity and diversification across a spectrum of U.S. dollar-denominated investment-grade fixed income securities. The Fund may invest, without limitation, in mortgage- or asset-backed securities, including to-be-announced (“TBA”) transactions, and purchase and sell securities on a when-issued, delayed delivery or forward commitment basis. The Fund also may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts (such as buy backs or mortgage dollar rolls). In seeking to achieve its investment objective, the Fund may invest in U.S. Treasury futures contracts, which are considered to be derivative instruments, for various purposes, including to manage duration, credit and interest rate risks, and for cash management. The Fund may take short or long positions in U.S. Treasury futures or transact in interest rate swaps. The Fund's short positions in U.S. Treasury futures are not intended to mitigate credit spread risk or other factors influencing the price of non-government bonds, which may have a greater impact than interest rates. The Fund may also invest in other interest rate futures contracts, including, but not limited to, Eurodollar and Federal Funds futures. The Fund may invest in short-term paper, cash and cash equivalents, including shares of affiliated and unaffiliated money market funds, in order to achieve its investment objective. The Fund may make the foregoing investments either directly or indirectly by investing in Underlying Funds, such as indexed or actively managed ETFs or other registered investment companies that invest in such securities. The Underlying Funds in which the Fund may invest include funds managed by NTI or its affiliates. The Fund is an actively managed ETF that does not seek to replicate the performance of a specified index. The Fund may have a higher degree of portfolio turnover than funds that seek to replicate the performance of an index. The Fund may lend securities representing up to one-third of the value of the Fund’s total assets (including the value of the collateral received).
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| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its net assets in U.S. dollar-denominated investment-grade fixed-income securities either directly or indirectly through exchange-traded funds ("ETFs") and other registered investment companies (together with ETFs, “Underlying Funds”). |