John Hancock Fundamental All Cap Core ETF Investment Strategy - John Hancock Fundamental All Cap Core ETF	Apr. 30, 2025
Prospectus [Line Items]
Strategy [Heading]	<span style="color:#000000;font-family:Arial Narrow;font-size:10pt;font-weight:bold;">Principal investment strategies</span>
Strategy Narrative [Text Block]	The fund is an exchange-traded fund (ETF), which is a fund that trades like other publicly-traded securities. The fund is not an index fund. The fund is actively managed and does not seek to replicate the performance of a specified index. Under normal market conditions, the fund invests at least 80% of its net assets in equity securities. Market capitalizations of these companies will span the capitalization spectrum. Equity securities include exchange-traded common and preferred securities (and exchange-traded futures providing such exposure). The manager seeks to identify companies that demonstrate key growth drivers, sustainable cash flow production, and high returns on capital, sustainable competitive advantages, and strong management. The manager looks for both growth and value opportunities, using the present value of estimated future cash flows to measure intrinsic value. The fund may focus its investments in a particular sector or sectors of the economy. The manager’s fundamental research process produces bottom-up company assessments using key assumptions that drive sales, margins, and asset intensity. The manager seeks to purchase company shares that are selling at a significant discount to intrinsic value. Sell decisions are similarly driven by long-term fundamental analysis. The manager may sell a holding if the holding reaches its target valuation, the manager perceives deterioration in the business’s underlying fundamentals, or a more attractive opportunity is identified. Because the fund is actively managed, it may trade securities actively. The fund may invest up to 20% of its net assets in equity securities of foreign issuers, including American Depositary Receipts. The fund may invest only in common stocks listed on a foreign exchange that trade contemporaneously with the fund's shares. Investments in ETFs may be used to reduce risk and/or obtain efficient investment exposure. The fund is an actively managed semi-transparent ETF that operates pursuant to an exemptive order from the Securities and Exchange Commission (Order) and is not required to publicly disclose its complete portfolio holdings each business day. Instead, the fund publishes each business day on its website a “Tracking Basket,” which is designed to closely track the daily performance of the fund but is not the fund's actual portfolio. The Tracking Basket is composed of: (1) select recently disclosed portfolio holdings and/or select securities from the universe from which the fund's investments are selected (Strategy Components); (2) liquid U.S. exchange-traded ETFs that convey information about the types of instruments (that are not otherwise fully represented by the Strategy Components) in which the fund invests (Representative ETFs); and (3) cash and cash equivalents. For additional information regarding the Tracking Basket, see “Additional information about the fund” section in the prospectus. The fund also publishes each business day on its website the “Tracking Basket Weight Overlap,” which is the percentage weight overlap between the holdings of the prior business day's Tracking Basket compared to the holdings of the fund that formed the basis for the fund's calculation of net asset value per share (NAV) at the end of the prior business day. The Tracking Basket Weight Overlap is designed to provide investors with an understanding of how similar the Tracking Basket is to the fund's actual portfolio in percentage terms.

John Hancock Fundamental All Cap Core ETF Investment Strategy - John Hancock Fundamental All Cap Core ETF

Apr. 30, 2025

<span style="color:#000000;font-family:Arial Narrow;font-size:10pt;font-weight:bold;">Principal investment strategies</span>

Strategy Narrative [Text Block]

The fund is an exchange-traded fund (ETF), which is a fund that trades like other publicly-traded securities. The fund is not an index fund. The fund is actively managed and does not seek to replicate the performance of a specified index. Under normal market conditions, the fund invests at least 80% of its net assets in equity securities. Market capitalizations of these companies will span the capitalization spectrum. Equity securities include exchange-traded common and preferred securities (and exchange-traded futures providing such exposure). The manager seeks to identify companies that demonstrate key growth drivers, sustainable cash flow production, and high returns on capital, sustainable competitive advantages, and strong management. The manager looks for both growth and value opportunities, using the present value of estimated future cash flows to measure intrinsic value. The fund may focus its investments in a particular sector or sectors of the economy. The manager’s fundamental research process produces bottom-up company assessments using key assumptions that drive sales, margins, and asset intensity. The manager seeks to purchase company shares that are selling at a significant discount to intrinsic value. Sell decisions are similarly driven by long-term fundamental analysis. The manager may sell a holding if the holding reaches its target valuation, the manager perceives deterioration in the business’s underlying fundamentals, or a more attractive opportunity is identified. Because the fund is actively managed, it may trade securities actively. The fund may invest up to 20% of its net assets in equity securities of foreign issuers, including American Depositary Receipts. The fund may invest only in common stocks listed on a foreign exchange that trade contemporaneously with the fund's shares. Investments in ETFs may be used to reduce risk and/or obtain efficient investment exposure. The fund is an actively managed semi-transparent ETF that operates pursuant to an exemptive order from the Securities and Exchange Commission (Order) and is not required to publicly disclose its complete portfolio holdings each business day. Instead, the fund publishes each business day on its website a “Tracking Basket,” which is designed to closely track the daily performance of the fund but is not the fund's actual portfolio. The Tracking Basket is composed of: (1) select recently disclosed portfolio holdings and/or select securities from the universe from which the fund's investments are selected (Strategy Components); (2) liquid U.S. exchange-traded ETFs that convey information about the types of instruments (that are not otherwise fully represented by the Strategy Components) in which the fund invests (Representative ETFs); and (3) cash and cash equivalents. For additional information regarding the Tracking Basket, see “Additional information about the fund” section in the prospectus. The fund also publishes each business day on its website the “Tracking Basket Weight Overlap,” which is the percentage weight overlap between the holdings of the prior business day's Tracking Basket compared to the holdings of the fund that formed the basis for the fund's calculation of net asset value per share (NAV) at the end of the prior business day. The Tracking Basket Weight Overlap is designed to provide investors with an understanding of how similar the Tracking Basket is to the fund's actual portfolio in percentage terms.