Investment Risks	Feb. 28, 2026
Pacer American Energy Infrastructure ETF \| Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	Concentration Risk. If the Index concentrates in an industry or group of industries, the Fund’s investments may be concentrated accordingly. In such event, the value of the Fund’s shares may rise and fall more than the value of shares of a fund that invests in securities of companies in a broader range of industries. In addition, at times, an industry or group of industries in which the Fund is concentrated may be out of favor and underperform other industries or groups of industries. ◦Concentration in the Energy Infrastructure Industry Risk. The Index is expected to be concentrated in energy infrastructure companies. When the Fund focuses its investments in the energy infrastructure industry, financial, economic, business, and other developments affecting issuers in that industry, market, or economic sector will have a greater effect on the Fund than if it had not done so. Companies in the energy infrastructure industry are subject to many risks that can negatively impact the revenues and viability of companies in this industry, including, but not limited to, risks associated with companies owning and/or operating pipelines, gathering and processing assets, power infrastructure, propane assets, as well as capital markets, terrorism, natural disasters, climate change, operating, regulatory, environmental, supply and demand, and price volatility risks. The volatility of energy commodity prices can significantly affect energy companies due to the impact of prices on the volume of commodities developed, produced, gathered, and processed. Historically, energy commodity prices have been cyclical and exhibited significant volatility, which may adversely impact the value, operations, cash flows, and financial performance of energy companies. The volatility of energy commodity prices can also indirectly affect certain entities that operate in the midstream segment of the energy industry due to the impact of prices on the volume of commodities transported, processed, stored, or distributed.
Pacer American Energy Infrastructure ETF \| Concentration Risk, Concentration In The Energy Infrastructure Industry Risk Member
Prospectus [Line Items]
Risk [Text Block]	Concentration in the Energy Infrastructure Industry Risk. The Index is expected to be concentrated in energy infrastructure companies. When the Fund focuses its investments in the energy infrastructure industry, financial, economic, business, and other developments affecting issuers in that industry, market, or economic sector will have a greater effect on the Fund than if it had not done so.Companies in the energy infrastructure industry are subject to many risks that can negatively impact the revenues and viability of companies in this industry, including, but not limited to, risks associated with companies owning and/or operating pipelines, gathering and processing assets, power infrastructure, propane assets, as well as capital markets, terrorism, natural disasters, climate change, operating, regulatory, environmental, supply and demand, and price volatility risks. The volatility of energy commodity prices can significantly affect energy companies due to the impact of prices on the volume of commodities developed, produced, gathered, and processed. Historically, energy commodity prices have been cyclical and exhibited significant volatility, which may adversely impact the value, operations, cash flows, and financial performance of energy companies. The volatility of energy commodity prices can also indirectly affect certain entities that operate in the midstream segment of the energy industry due to the impact of prices on the volume of commodities transported, processed, stored, or distributed.
Pacer American Energy Infrastructure ETF \| Currency Exchange Rate Risk Member
Prospectus [Line Items]
Risk [Text Block]	Currency Exchange Rate Risk. The Fund invests a significant percentage of its assets in investments denominated in Canadian dollars or in securities that provide exposure to such currency. Changes in currency exchange rates and the relative value of the Canadian dollar to the U.S. dollar will affect the value of the Fund’s investment and the value of your Shares. Currency exchange rates can be very volatile and can change quickly and unpredictably. As a result, the value of an investment in the Fund may change quickly and without warning and you may lose money.
Pacer American Energy Infrastructure ETF \| Equity Market Risk Member
Prospectus [Line Items]
Risk [Text Block]	Equity Market Risk. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific industries, sectors or companies in which the Fund invests. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in and perceptions of their issuers change. The Fund’s NAV and market price may fluctuate significantly in response to these and other factors. As a result, an investor could lose money over short or long periods of time.
Pacer American Energy Infrastructure ETF \| ETF Risks Member
Prospectus [Line Items]
Risk [Text Block]	ETF Risks. The Fund is an ETF and, as a result of an ETF’s structure, is exposed to the following risks: ◦Authorized Participants (“APs”), Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions. ◦Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments. ◦Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund’s portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund’s NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices. Certain securities held by the Fund may trade on foreign exchanges that are closed when the Fund’s primary listing exchange is open, and the Fund may experience premiums and discounts greater than those of ETFs that hold securities that are traded only in the United States. ◦Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as NYSE Arca, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.
Pacer American Energy Infrastructure ETF \| ETF Risks, Authorized Participants ("APs"), Market Makers, And Liquidity Providers Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	Authorized Participants (“APs”), Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Pacer American Energy Infrastructure ETF \| ETF Risks, Costs Of Buying Or Selling Shares Of The Fund Risk Member
Prospectus [Line Items]
Risk [Text Block]	Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments.
Pacer American Energy Infrastructure ETF \| ETF Risks, Shares Of The Fund May Trade At Prices Other Than NAV Risk Member
Prospectus [Line Items]
Risk [Text Block]	Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund’s portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund’s NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices. Certain securities held by the Fund may trade on foreign exchanges that are closed when the Fund’s primary listing exchange is open, and the Fund may experience premiums and discounts greater than those of ETFs that hold securities that are traded only in the United States.
Pacer American Energy Infrastructure ETF \| ETF Risks, Trading Risk Member
Prospectus [Line Items]
Risk [Text Block]	Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as NYSE Arca, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.
Pacer American Energy Infrastructure ETF \| Foreign Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Foreign Securities Risk. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. Investments in non-U.S. securities also may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. These and other factors can make investments in the Fund more volatile and potentially less liquid than other types of investments. Foreign securities held by the Fund may trade on markets that are closed when U.S. markets are open, which may lead to a difference in the value of the Fund and the underlying foreign securities.
Pacer American Energy Infrastructure ETF \| Geographic Concentration Risk 1 Member
Prospectus [Line Items]
Risk [Text Block]	Geographic Concentration Risk. To the extent the Fund invests a significant portion of its assets in the securities of companies of a single country or region, it is more likely to be impacted by events or conditions affecting that country or region. The Index’s, and therefore the Fund’s, heavy equity exposure to Canada subjects the Fund to a higher degree of country risk than that of more geographically diversified international funds. ◦Canada-Specific Risk. The Canadian economy is reliant on the sale of natural resources and commodities, which can pose risks such as the fluctuation of prices and the variability of demand for exportation of such products. Changes in spending on Canadian products by the economies of other countries or changes in any of these economies may cause a significant impact on the Canadian economy.
Pacer American Energy Infrastructure ETF \| Geographic Concentration Risk 1, Canada-Specific Risk Member
Prospectus [Line Items]
Risk [Text Block]	Canada-Specific Risk. The Canadian economy is reliant on the sale of natural resources and commodities, which can pose risks such as the fluctuation of prices and the variability of demand for exportation of such products. Changes in spending on Canadian products by the economies of other countries or changes in any of these economies may cause a significant impact on the Canadian economy.
Pacer American Energy Infrastructure ETF \| Index Provider Risk Member
Prospectus [Line Items]
Risk [Text Block]	Index Provider Risk. There is no assurance that the Index Provider or any agents that act on its behalf, will compile the Index accurately, or that the Index will be determined, maintained, constructed, rebalanced, calculated or disseminated accurately. The Fund relies upon the Index Provider and its agents to compile, determine, maintain, construct, rebalance, calculate (or arrange for an agent to calculate), and disseminate the Index accurately. Any losses or costs associated with errors made by the Index Provider or its agents generally will be borne by the Fund and its shareholders. Because the Index includes international securities, the Index Provider may have limited information or may be more prone to mistakes based on the data available and such mistakes may have a greater impact on the Fund’s performance, which may increase the risks to the Fund.
Pacer American Energy Infrastructure ETF \| Large-Capitalization Investing Risk Member
Prospectus [Line Items]
Risk [Text Block]	Large-Capitalization Investing Risk. The Fund may invest in the securities of large-capitalization companies. As a result, the Fund’s performance may be adversely affected if securities of large-capitalization companies underperform securities of smaller-capitalization companies or the market as a whole. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion.
Pacer American Energy Infrastructure ETF \| MLP Risk Member
Prospectus [Line Items]
Risk [Text Block]	MLP Risk. MLP investment returns are enhanced during periods of declining or low interest rates and tend to be negatively influenced when interest rates are rising. In addition, most MLPs are fairly leveraged and typically carry a portion of a “floating” rate debt. As such, a significant upward swing in interest rates would also drive interest expense higher. Furthermore, most MLPs grow by acquisitions partly financed by debt, and higher interest rates could make it more difficult to make acquisitions. MLP investments also entail many of the general tax risks of investing in a partnership. Limited partners in an MLP typically have limited control and limited or no rights to vote on matters affecting the partnership. Additionally, there is always the risk that an MLP will fail to qualify for favorable tax treatment.
Pacer American Energy Infrastructure ETF \| Passive Investment Risk Member
Prospectus [Line Items]
Risk [Text Block]	Passive Investment Risk. The Fund is not actively managed and the Adviser would not sell a security due to current or projected underperformance of a security, industry or sector, unless that security is removed from the Index or the selling of shares of that security is otherwise required upon a reconstitution of the Index in accordance with the Index methodology. The Fund invests in securities included in the Index, regardless of their investment merits. The Fund does not take defensive positions under any market conditions, including conditions that are adverse to the performance of the Fund.
Pacer American Energy Infrastructure ETF \| Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Sector Risk. To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors. ◦Energy Sector Risk. The Fund may invest in companies in the energy sector, and therefore the performance of the fund could be negatively impacted by events affecting this sector. The profitability of companies in the energy sector is related to worldwide energy prices, exploration, and production spending. Such companies also are subject to risks of changes in exchange rates, government regulation, world events, depletion of resources and economic conditions, as well as market, economic and political risks of the countries where energy companies are located or do business. Oil and gas exploration and production can be significantly affected by natural disasters. Oil exploration and production companies may be adversely affected by changes in exchange rates, interest rates, government regulation, world events, and economic conditions. Oil exploration and production companies may be at risk for environmental damage claims. The energy sector is comprised of energy, energy industrial, energy infrastructure and energy logistics companies, and will therefore be susceptible to adverse economic, environmental, business, regulatory or other occurrences affecting that sector. The energy sector has historically experienced substantial price volatility. At times, the performance of these investments may lag the performance of other sectors or the market as a whole. Master Limited Partnerships (MLPs) and other companies operating in the energy sector are subject to specific risks, including, among others, fluctuations in commodity prices; reduced consumer demand for commodities such as oil, natural gas or petroleum products; reduced availability of natural gas or other commodities for transporting, processing, storing or delivering; slowdowns in new construction; extreme weather or other natural disasters; and threats of attack by terrorists on energy assets. Additionally, energy sector companies are subject to substantial government regulation and changes in the regulatory environment for energy companies may adversely impact their profitability. MLPs may incur environmental costs and liabilities due to the nature of their businesses and the substances they handle. Changes in existing laws, regulations or enforcement policies governing the energy sector could significantly increase the compliance costs of MLPs. Certain MLPs could, from time to time, be held responsible for implementing remediation measures, the cost of which may not be recoverable from insurance. Over time, depletion of natural gas reserves and other energy reserves may also affect the profitability of energy companies.
Pacer American Energy Infrastructure ETF \| Sector Risk, Energy Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Energy Sector Risk. The Fund may invest in companies in the energy sector, and therefore the performance of the fund could be negatively impacted by events affecting this sector. The profitability of companies in the energy sector is related to worldwide energy prices, exploration, and production spending. Such companies also are subject to risks of changes in exchange rates, government regulation, world events, depletion of resources and economic conditions, as well as market, economic and political risks of the countries where energy companies are located or do business. Oil and gas exploration and production can be significantly affected by natural disasters. Oil exploration and production companies may be adversely affected by changes in exchange rates, interest rates, government regulation, world events, and economic conditions. Oil exploration and production companies may be at risk for environmental damage claims. The energy sector is comprised of energy, energy industrial, energy infrastructure and energy logistics companies, and will therefore be susceptible to adverse economic, environmental, business, regulatory or other occurrences affecting that sector. The energy sector has historically experienced substantial price volatility. At times, the performance of these investments may lag the performance of other sectors or the market as a whole. Master Limited Partnerships (MLPs) and other companies operating in the energy sector are subject to specific risks, including, among others, fluctuations in commodity prices; reduced consumer demand for commodities such as oil, natural gas or petroleum products; reduced availability of natural gas or other commodities for transporting, processing, storing or delivering; slowdowns in new construction; extreme weather or other natural disasters; and threats of attack by terrorists on energy assets. Additionally, energy sector companies are subject to substantial government regulation and changes in the regulatory environment for energy companies may adversely impact their profitability. MLPs may incur environmental costs and liabilities due to the nature of their businesses and the substances they handle. Changes in existing laws, regulations or enforcement policies governing the energy sector could significantly increase the compliance costs of MLPs. Certain MLPs could, from time to time, be held responsible for implementing remediation measures, the cost of which may not be recoverable from insurance. Over time, depletion of natural gas reserves and other energy reserves may also affect the profitability of energy companies.
Pacer American Energy Infrastructure ETF \| Small And Mid-Sized Company Stock Risk Member
Prospectus [Line Items]
Risk [Text Block]	Small and Mid-Sized Company Stock Risk. The Fund may invest in equity securities of small- or mid-sized (based on market capitalization) companies. Small to mid-sized company securities have historically been subject to greater investment risk than large company securities. The prices of small- to mid-sized company securities tend to be more volatile and less liquid than large company securities.
Pacer American Energy Infrastructure ETF \| Tax Risk Member
Prospectus [Line Items]
Risk [Text Block]	Tax Risk. The Fund intends to continue to qualify for treatment as a “regulated investment company” (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (the “Code”), by meeting certain source-of-income, asset diversification and annual distribution requirements. In particular, the Fund generally may not acquire a security if, as a result of the acquisition, more than 50% of the value of the Fund’s assets would be invested in (a) issuers in which the Fund has, in each case, invested more than 5% of the Fund’s assets or (b) issuers more than 10% of whose outstanding voting securities are owned by the Fund. Additionally, to qualify for treatment as a RIC the Fund may not invest more than 25% of its total assets in the securities of entities treated as qualified publicly traded partnerships (“QPTPs”) for U.S. federal income tax purposes, including certain MLPs. While the weighting of the Index is not inconsistent with these rules, given the concentration of the Index in a relatively small number of securities, it may not always be possible for the Fund to fully implement a replication strategy or a representative sampling strategy while satisfying these diversification requirements. If the Fund were to fail to qualify as a RIC, the Fund would be subject to tax on its taxable income at corporate rates, and distributions from earnings and profits would generally be taxable to Fund shareholders as ordinary income. The Fund is also subject to the risk that MLPs in which the Fund invest will be classified as corporations rather than as partnerships for federal income tax purposes, which may reduce the Fund’s return and negatively affect the Fund’s net asset value. There is a risk of changes in tax laws or regulations, or interpretations thereof, which could adversely affect the Fund or the MLPs in which the Fund invests. ◦MLP Tax Risk. Depreciation or other cost recovery deductions passed through to the Fund from investments in MLPs in a given year will generally reduce the Fund’s taxable income, but those deductions may be recaptured in the Fund’s income in one or more subsequent years. When recognized and distributed, recapture income will generally be taxable to shareholders at the time of the distribution at ordinary income tax rates, even though those shareholders might not have held Shares at the time the deductions were taken by the Fund, and even though those shareholders will not have corresponding economic gain on their Shares at the time of the recapture. To distribute recapture income or to fund redemption requests, the Fund may need to liquidate investments. MLPs taxed as partnerships have historically made cash distributions to limited partners that exceed the amount of taxable income allocable to limited partners or members, due to a variety of factors, including significant non-cash deductions such as depreciation and depletion. These excess cash distributions would not be treated as income to the Fund but rather would be treated as a return of capital to the extent of the Fund’s basis in the MLP. As a consequence, the Fund may make distributions that exceed its earnings and profits, which would be recharacterized as a return of capital to shareholders. A return of capital distribution will generally not be taxable but will reduce each shareholder’s cost basis in Shares and result in a higher capital gain or lower capital loss when the Shares are sold. After a shareholder’s basis in Shares has been reduced to zero, distributions in excess of earnings and profits in respect of those Shares will be treated as gain from the sale of the Shares.
Pacer American Energy Infrastructure ETF \| Tax Risk, MLP Tax Risk Member
Prospectus [Line Items]
Risk [Text Block]	MLP Tax Risk. Depreciation or other cost recovery deductions passed through to the Fund from investments in MLPs in a given year will generally reduce the Fund’s taxable income, but those deductions may be recaptured in the Fund’s income in one or more subsequent years. When recognized and distributed, recapture income will generally be taxable to shareholders at the time of the distribution at ordinary income tax rates, even though those shareholders might not have held Shares at the time the deductions were taken by the Fund, and even though those shareholders will not have corresponding economic gain on their Shares at the time of the recapture. To distribute recapture income or to fund redemption requests, the Fund may need to liquidate investments. MLPs taxed as partnerships have historically made cash distributions to limited partners that exceed the amount of taxable income allocable to limited partners or members, due to a variety of factors, including significant non-cash deductions such as depreciation and depletion. These excess cash distributions would not be treated as income to the Fund but rather would be treated as a return of capital to the extent of the Fund’s basis in the MLP. As a consequence, the Fund may make distributions that exceed its earnings and profits, which would be recharacterized as a return of capital to shareholders. A return of capital distribution will generally not be taxable but will reduce each shareholder’s cost basis in Shares and result in a higher capital gain or lower capital loss when the Shares are sold. After a shareholder’s basis in Shares has been reduced to zero, distributions in excess of earnings and profits in respect of those Shares will be treated as gain from the sale of the Shares.
Pacer American Energy Infrastructure ETF \| Tracking Error Risk Member
Prospectus [Line Items]
Risk [Text Block]	Tracking Error Risk. As with all index funds, the performance of the Fund and its Index may differ from each other for a variety of reasons. For example, the Fund incurs operating expenses and portfolio transaction costs not incurred by the Index. In addition, the Fund may not be fully invested in the securities of the Index at all times or may hold securities not included in the Index.
Pacer American Energy Infrastructure ETF \| Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	You can lose money on your investment in the Fund.
Pacer American Energy Infrastructure ETF \| Risk Nondiversified Status [Member]
Prospectus [Line Items]
Risk [Text Block]	Non-Diversification Risk. Although the Fund intends to invest in a variety of securities and instruments, the Fund is considered to be non-diversified, which means that it may invest more of its assets in the securities of a single issuer or a smaller number of issuers than if it were a diversified fund. As a result, the Fund may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
Pacer BlueStar Digital Entertainment ETF \| Currency Exchange Rate Risk Member
Prospectus [Line Items]
Risk [Text Block]	Currency Exchange Rate Risk. The Fund may invest a significant percentage of its assets in investments denominated in a foreign currency or in securities that provide exposure to such currency. Changes in currency exchange rates and the relative value of such currency to the U.S. dollar will affect the value of the Fund’s investment and the value of your Shares. Currency exchange rates can be very volatile and can change quickly and unpredictably. As a result, the value of an investment in the Fund may change quickly and without warning and you may lose money.
Pacer BlueStar Digital Entertainment ETF \| Equity Market Risk Member
Prospectus [Line Items]
Risk [Text Block]	Equity Market Risk. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific industries, sectors or companies in which the Fund invests. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in and perceptions of their issuers change. The Fund’s NAV and market price may fluctuate significantly in response to these and other factors. As a result, an investor could lose money over short or long periods of time.
Pacer BlueStar Digital Entertainment ETF \| ETF Risks Member
Prospectus [Line Items]
Risk [Text Block]	•ETF Risks. The Fund is an ETF and, as a result of an ETF’s structure, is exposed to the following risks: ◦Authorized Participants (“APs”), Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions. ◦Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. ETF shares can only be redeemed in creation units by APs. Individual shareholders may only purchase and sell ETF shares on a secondary market. ◦Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments. ◦Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund’s portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund’s NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices. Because certain securities held by the Fund trade on foreign exchanges that are closed when the Fund’s primary listing exchange is open, the Fund is likely to experience premiums and discounts greater than those of domestic ETFs. ◦Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as the Nasdaq Stock Market LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.
Pacer BlueStar Digital Entertainment ETF \| ETF Risks, Authorized Participants ("APs"), Market Makers, And Liquidity Providers Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	Authorized Participants (“APs”), Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Pacer BlueStar Digital Entertainment ETF \| ETF Risks, Costs Of Buying Or Selling Shares Of The Fund Risk Member
Prospectus [Line Items]
Risk [Text Block]	Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments.
Pacer BlueStar Digital Entertainment ETF \| ETF Risks, Shares Of The Fund May Trade At Prices Other Than NAV Risk Member
Prospectus [Line Items]
Risk [Text Block]	Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund’s portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund’s NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices. Because certain securities held by the Fund trade on foreign exchanges that are closed when the Fund’s primary listing exchange is open, the Fund is likely to experience premiums and discounts greater than those of domestic ETFs.
Pacer BlueStar Digital Entertainment ETF \| ETF Risks, Trading Risk Member
Prospectus [Line Items]
Risk [Text Block]	Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as the Nasdaq Stock Market LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.
Pacer BlueStar Digital Entertainment ETF \| Foreign Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Foreign Securities Risk. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. Investments in non-U.S. securities also may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. These and other factors can make investments in the Fund more volatile and potentially less liquid than other types of investments. Companies in many foreign markets are not subject to the same degree of regulatory requirements, accounting standards or auditor oversight as companies in the U.S., and as a result, information about the securities in which the Fund invests may be less reliable or complete. Foreign markets often have less reliable securities valuations and greater risk associated with the custody of securities than the U.S. There may be significant obstacles to obtaining information necessary for investigations into or litigation against companies and shareholders may have limited legal remedies.
Pacer BlueStar Digital Entertainment ETF \| Geographic Concentration Risk 1 Member
Prospectus [Line Items]
Risk [Text Block]	Geographic Concentration Risk. To the extent the Fund invests a significant portion of its assets in the securities of companies of a single country or region, it is more likely to be impacted by events or conditions affecting that country or region. The Index’s, and therefore the Fund’s, heavy equity exposure to China and Europe subjects the Fund to a higher degree of country risk than that of more geographically diversified international funds. ◦Risks of Investing in China. Investments in Chinese issuers subject the Fund to risks specific to China. China may be subject to considerable degrees of economic, political and social instability. China is a developing market and demonstrates significantly higher volatility from time to time in comparison to developed markets. Over the past 25 years, the Chinese government has undertaken reform of economic and market practices and is expanding the sphere of private ownership of property in China. However, Chinese markets generally continue to experience inefficiency, volatility and pricing anomalies resulting from governmental influence, a lack of publicly available information and/or political and social instability. Internal social unrest or confrontations with other neighboring countries, including military conflicts in response to such events, may also disrupt economic development in China and result in a greater risk of currency fluctuations, currency convertibility, interest rate fluctuations and higher rates of inflation. Export growth continues to be a major driver of China’s rapid economic growth. Reduction in spending on Chinese products and services, institution of tariffs or other trade barriers, or a downturn in any of the economies of China’s key trading partners may have an adverse impact on the Chinese economy. China is also vulnerable economically to the impact of a public health crisis, which could depress consumer demand, reduce economic output, and potentially lead to market closures, travel restrictions, and quarantines, all of which would negatively impact China’s economy and could affect the economies of its trading partners. ◦Risks Related to Investing in Europe. The economies and markets of European countries are often closely connected and interdependent, and events in one country in Europe can have an adverse impact on other European countries. The Fund makes investments in securities of issuers that are domiciled in, or have significant operations in, the United Kingdom (UK) and the member countries of the European Union (“EU”) that are subject to economic and monetary controls that can adversely affect the Fund’s investments. The European financial markets have experienced volatility and adverse trends in recent years and these events have adversely affected the exchange rate of the euro and/or the British pound and may continue to significantly affect other European countries. Decreasing imports or exports, changes in governmental or EU regulations on trade, changes in the exchange rate of the euro and/or the British pound, the default or threat of default by a European country on its sovereign debt, and/or an economic recession in a European country may have a significant adverse effect on the economies of the countries and their trading partners, including some or all of the European countries in which the Fund invests.
Pacer BlueStar Digital Entertainment ETF \| Index Provider Risk Member
Prospectus [Line Items]
Risk [Text Block]	Index Provider Risk. There is no assurance that the Index Provider or any agents that act on its behalf, will compile the Index accurately, or that the Index will be determined, maintained, constructed, rebalanced, calculated or disseminated accurately. The Fund relies upon the Index Provider and its agents to compile, determine, maintain, construct, rebalance, calculate (or arrange for an agent to calculate), and disseminate the Index accurately. Any losses or costs associated with errors made by the Index Provider or its agents generally will be borne by the Fund and its shareholders. Because the Index includes international securities, the Index Provider may have limited information or may be more prone to mistakes based on the data available and such mistakes may have a greater impact on the Fund’s performance, which may increase the risks to the Fund.
Pacer BlueStar Digital Entertainment ETF \| Passive Investment Risk Member
Prospectus [Line Items]
Risk [Text Block]	Passive Investment Risk. The Fund is not actively managed and the Adviser would not sell a security due to current or projected underperformance of a security, industry or sector, unless that security is removed from the Index or the selling of shares of that security is otherwise required upon a reconstitution of the Index in accordance with the Index methodology. The Fund invests in securities included in the Index, regardless of their investment merits. The Fund does not take defensive positions under any market conditions, including conditions that are adverse to the performance of the Fund.
Pacer BlueStar Digital Entertainment ETF \| Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Sector Risk. To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors. ◦Communications Services Sector Risk. The Fund is generally expected to invest significantly in companies in the communications services sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. Communications services companies are subject to extensive government regulation. The costs of complying with governmental regulations, delays or failure to receive required regulatory approvals, or the enactment of new adverse regulatory requirements may adversely affect the business of the such companies. Companies in the communications services sector can also be significantly affected by intense competition, including competition with alternative technologies such as wireless communications (including with 5G and other technologies), product compatibility, consumer preferences, rapid product obsolescence, and research and development of new products. Technological innovations may make the products and services of such companies obsolete. ◦Consumer Discretionary Sector Risk. The Fund may invest in companies in the consumer discretionary sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. The success of consumer product manufacturers and retailers is tied closely to the performance of domestic and international economies, interest rates, exchange rates, competition, consumer confidence, changes in demographics and consumer preferences. Companies in the consumer discretionary sector depend heavily on disposable household income and consumer spending, and may be strongly affected by social trends and marketing campaigns. These companies may be subject to severe competition, which may have an adverse impact on their profitability.
Pacer BlueStar Digital Entertainment ETF \| Tracking Error Risk Member
Prospectus [Line Items]
Risk [Text Block]	Tracking Error Risk. As with all index funds, the performance of the Fund and its Index may differ from each other for a variety of reasons. For example, the Fund incurs operating expenses and portfolio transaction costs not incurred by the Index. In addition, the Fund may not be fully invested in the securities of the Index at all times or may hold securities not included in the Index.
Pacer BlueStar Digital Entertainment ETF \| Concentration In Digital Entertainment Companies Risk Member
Prospectus [Line Items]
Risk [Text Block]	Concentration in Digital Entertainment Companies Risk. Companies in the business of betting or online gambling include those directly engaged in casino operations, racetrack operations, sports and horse race betting operations, and online betting operations. Online Gambling Companies face intense competition and are highly regulated. These companies face regulatory challenges and heightened competition as more states begin to allow betting and online gambling activities. eSports Companies are subject to intense global competition and may be smaller companies with limited product lines, markets, financial resources, or personnel. Such companies may be heavily dependent on patent and intellectual property rights and may be prone to operational and information security risks resulting from cyber-attacks and/or technological malfunctions. eSports Companies may have products that face rapid obsolescence and may be dependent on one or a small number of products or product franchises for a significant portion of their revenue and profits. They may also be subject to shifting consumer preferences, including preferences with respect to gaming console platforms and other forms of entertainment, and changes in consumer discretionary spending, all of which may change rapidly and cannot necessarily be predicted. eSports Companies are also subject to increasing regulatory constraints, particularly with respect to cybersecurity and privacy, and may be subject to sophisticated intellectual property infringement schemes and piracy efforts.
Pacer BlueStar Digital Entertainment ETF \| ETF Risks, Cash Redemption Risk Member
Prospectus [Line Items]
Risk [Text Block]	Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. ETF shares can only be redeemed in creation units by APs. Individual shareholders may only purchase and sell ETF shares on a secondary market.
Pacer BlueStar Digital Entertainment ETF \| Geographic Concentration Risk 1, Risks Of Investing In China Risk Member
Prospectus [Line Items]
Risk [Text Block]	Risks of Investing in China. Investments in Chinese issuers subject the Fund to risks specific to China. China may be subject to considerable degrees of economic, political and social instability. China is a developing market and demonstrates significantly higher volatility from time to time in comparison to developed markets. Over the past 25 years, the Chinese government has undertaken reform of economic and market practices and is expanding the sphere of private ownership of property in China. However, Chinese markets generally continue to experience inefficiency, volatility and pricing anomalies resulting from governmental influence, a lack of publicly available information and/or political and social instability. Internal social unrest or confrontations with other neighboring countries, including military conflicts in response to such events, may also disrupt economic development in China and result in a greater risk of currency fluctuations, currency convertibility, interest rate fluctuations and higher rates of inflation. Export growth continues to be a major driver of China’s rapid economic growth. Reduction in spending on Chinese products and services, institution of tariffs or other trade barriers, or a downturn in any of the economies of China’s key trading partners may have an adverse impact on the Chinese economy. China is also vulnerable economically to the impact of a public health crisis, which could depress consumer demand, reduce economic output, and potentially lead to market closures, travel restrictions, and quarantines, all of which would negatively impact China’s economy and could affect the economies of its trading partners.
Pacer BlueStar Digital Entertainment ETF \| Geographic Concentration Risk 1, Risks Related To Investing In Europe Risk Member
Prospectus [Line Items]
Risk [Text Block]	Risks Related to Investing in Europe. The economies and markets of European countries are often closely connected and interdependent, and events in one country in Europe can have an adverse impact on other European countries. The Fund makes investments in securities of issuers that are domiciled in, or have significant operations in, the United Kingdom (UK) and the member countries of the European Union (“EU”) that are subject to economic and monetary controls that can adversely affect the Fund’s investments. The European financial markets have experienced volatility and adverse trends in recent years and these events have adversely affected the exchange rate of the euro and/or the British pound and may continue to significantly affect other European countries. Decreasing imports or exports, changes in governmental or EU regulations on trade, changes in the exchange rate of the euro and/or the British pound, the default or threat of default by a European country on its sovereign debt, and/or an economic recession in a European country may have a significant adverse effect on the economies of the countries and their trading partners, including some or all of the European countries in which the Fund invests.
Pacer BlueStar Digital Entertainment ETF \| Market Capitalization Risk Member
Prospectus [Line Items]
Risk [Text Block]	Market Capitalization Risk. ◦Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion. ◦Mid-Capitalization Investing. The securities of mid-capitalization companies may be more vulnerable to adverse issuer, market, political, or economic developments than securities of large-capitalization companies. The securities of mid-capitalization companies generally trade in lower volumes and are subject to greater and more unpredictable price changes than large-capitalization stocks or the stock market as a whole.
Pacer BlueStar Digital Entertainment ETF \| Market Capitalization Risk, Large-Capitalization Investing Risk Member
Prospectus [Line Items]
Risk [Text Block]	Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion.
Pacer BlueStar Digital Entertainment ETF \| Market Capitalization Risk, Mid-Capitalization Investing Risk Member
Prospectus [Line Items]
Risk [Text Block]	Mid-Capitalization Investing. The securities of mid-capitalization companies may be more vulnerable to adverse issuer, market, political, or economic developments than securities of large-capitalization companies. The securities of mid-capitalization companies generally trade in lower volumes and are subject to greater and more unpredictable price changes than large-capitalization stocks or the stock market as a whole.
Pacer BlueStar Digital Entertainment ETF \| Other Investment Companies Risk Member
Prospectus [Line Items]
Risk [Text Block]	Other Investment Companies Risk. The Fund will incur higher and duplicative expenses when it invests in other investment companies such as ETFs. There is also the risk that the Fund may suffer losses due to the investment practices of the underlying funds. When the Fund invests in other investment companies, the Fund will be subject to substantially the same risks as those associated with the direct ownership of securities held by such investment companies. Investments in ETFs are also subject to the “ETF Risks” described above.
Pacer BlueStar Digital Entertainment ETF \| Sector Risk, Communications Services Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Communications Services Sector Risk. The Fund is generally expected to invest significantly in companies in the communications services sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. Communications services companies are subject to extensive government regulation. The costs of complying with governmental regulations, delays or failure to receive required regulatory approvals, or the enactment of new adverse regulatory requirements may adversely affect the business of the such companies. Companies in the communications services sector can also be significantly affected by intense competition, including competition with alternative technologies such as wireless communications (including with 5G and other technologies), product compatibility, consumer preferences, rapid product obsolescence, and research and development of new products. Technological innovations may make the products and services of such companies obsolete.
Pacer BlueStar Digital Entertainment ETF \| Sector Risk, Consumer Discretionary Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Consumer Discretionary Sector Risk. The Fund may invest in companies in the consumer discretionary sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. The success of consumer product manufacturers and retailers is tied closely to the performance of domestic and international economies, interest rates, exchange rates, competition, consumer confidence, changes in demographics and consumer preferences. Companies in the consumer discretionary sector depend heavily on disposable household income and consumer spending, and may be strongly affected by social trends and marketing campaigns. These companies may be subject to severe competition, which may have an adverse impact on their profitability.
Pacer BlueStar Digital Entertainment ETF \| Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	You can lose money on your investment in the Fund.
Pacer BlueStar Digital Entertainment ETF \| Risk Not Insured Depository Institution [Member]
Prospectus [Line Items]
Risk [Text Block]	Depositary Receipt Risk. Depositary Receipts involve risks similar to those associated with investments in foreign securities, such as changes in political or economic conditions of other countries and changes in the exchange rates of foreign currencies. Depositary Receipts listed on U.S. exchanges are issued by banks or trust companies and entitle the holder to all dividends and capital gains that are paid out on the underlying foreign shares (“Underlying Shares”). When the Fund invests in Depositary Receipts as a substitute for an investment directly in the Underlying Shares, the Fund is exposed to the risk that the Depositary Receipts may not provide a return that corresponds precisely with that of the Underlying Shares.
Pacer BlueStar Digital Entertainment ETF \| Risk Nondiversified Status [Member]
Prospectus [Line Items]
Risk [Text Block]	Non-Diversification Risk. Although the Fund intends to invest in a variety of securities and instruments, the Fund is considered to be non-diversified, which means that it may invest more of its assets in the securities of a single issuer or a smaller number of issuers than if it were a diversified fund. As a result, the Fund may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
Pacer BlueStar Engineering the Future ETF \| Currency Exchange Rate Risk Member
Prospectus [Line Items]
Risk [Text Block]	Currency Exchange Rate Risk. The Fund may invest a significant percentage of its assets in investments denominated in a foreign currency or in securities that provide exposure to such currency. Changes in currency exchange rates and the relative value of such currency to the U.S. dollar will affect the value of the Fund’s investment and the value of your Shares. Currency exchange rates can be very volatile and can change quickly and unpredictably. As a result, the value of an investment in the Fund may change quickly and without warning and you may lose money.
Pacer BlueStar Engineering the Future ETF \| Equity Market Risk Member
Prospectus [Line Items]
Risk [Text Block]	Equity Market Risk. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific industries, sectors or companies in which the Fund invests. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in and perceptions of their issuers change. The Fund’s NAV and market price may fluctuate significantly in response to these and other factors. As a result, an investor could lose money over short or long periods of time.
Pacer BlueStar Engineering the Future ETF \| ETF Risks Member
Prospectus [Line Items]
Risk [Text Block]	ETF Risks. The Fund is an ETF and, as a result of an ETF’s structure, is exposed to the following risks: ◦Authorized Participants (“APs”), Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions. ◦Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. ETF shares can only be redeemed in creation units by APs. Individual shareholders may only purchase and sell ETF shares on a secondary market. ◦Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments. ◦Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund’s portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund’s NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices. Because certain securities held by the Fund trade on foreign exchanges that are closed when the Fund’s primary listing exchange is open, the Fund is likely to experience premiums and discounts greater than those of domestic ETFs. ◦Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as the Nasdaq Stock Market LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.
Pacer BlueStar Engineering the Future ETF \| ETF Risks, Authorized Participants ("APs"), Market Makers, And Liquidity Providers Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	◦Authorized Participants (“APs”), Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Pacer BlueStar Engineering the Future ETF \| ETF Risks, Costs Of Buying Or Selling Shares Of The Fund Risk Member
Prospectus [Line Items]
Risk [Text Block]	Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments.
Pacer BlueStar Engineering the Future ETF \| ETF Risks, Shares Of The Fund May Trade At Prices Other Than NAV Risk Member
Prospectus [Line Items]
Risk [Text Block]	Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund’s portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund’s NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices. Because certain securities held by the Fund trade on foreign exchanges that are closed when the Fund’s primary listing exchange is open, the Fund is likely to experience premiums and discounts greater than those of domestic ETFs.
Pacer BlueStar Engineering the Future ETF \| ETF Risks, Trading Risk Member
Prospectus [Line Items]
Risk [Text Block]	Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as the Nasdaq Stock Market LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.
Pacer BlueStar Engineering the Future ETF \| Foreign Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Foreign Securities Risk. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. Investments in non-U.S. securities also may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. These and other factors can make investments in the Fund more volatile and potentially less liquid than other types of investments. Companies in many foreign markets are not subject to the same degree of regulatory requirements, accounting standards or auditor oversight as companies in the U.S., and as a result, information about the securities in which the Fund invests may be less reliable or complete. Foreign markets often have less reliable securities valuations and greater risk associated with the custody of securities than the U.S. There may be significant obstacles to obtaining information necessary for investigations into or litigation against companies and shareholders may have limited legal remedies.
Pacer BlueStar Engineering the Future ETF \| Geographic Concentration Risk 1 Member
Prospectus [Line Items]
Risk [Text Block]	Geographic Concentration Risk. To the extent the Fund invests a significant portion of its assets in the securities of companies of a single country or region, it is more likely to be impacted by events or conditions affecting that country or region. The Index’s, and therefore the Fund’s, heavy equity exposure to Japan and Europe subjects the Fund to a higher degree of country risk than that of more geographically diversified international funds. ◦Risks Related to Investing in Europe. The economies and markets of European countries are often closely connected and interdependent, and events in one country in Europe can have an adverse impact on other European countries. The Fund makes investments in securities of issuers that are domiciled in, or have significant operations in, the United Kingdom (UK) and the member countries of the European Union (“EU”) that are subject to economic and monetary controls that can adversely affect the Fund’s investments. The European financial markets have experienced volatility and adverse trends in recent years and these events have adversely affected the exchange rate of the euro and/or the British pound and may continue to significantly affect other European countries. Decreasing imports or exports, changes in governmental or EU regulations on trade, changes in the exchange rate of the euro and/or the British pound, the default or threat of default by a European country on its sovereign debt, and/or an economic recession in a European country may have a significant adverse effect on the economies of the countries and their trading partners, including some or all of the European countries in which the Fund invests. ◦Risks Related to Investing in Japan. The Japanese economy may be subject to considerable degrees of economic, political and social instability, which could have a negative impact on Japanese securities. Since the year 2000, Japan’s economic growth rate has remained relatively low and it may remain low in the future. In addition, Japan is subject to the risk of natural disasters, such as earthquakes, volcanoes, typhoons and tsunamis. Additionally, decreasing U.S. imports, new trade regulations, changes in the U.S. dollar exchange rates, a recession in the United States or continued increases in foreclosure rates may have an adverse impact on the economy of Japan. Japan also has few natural resources, and any fluctuation or shortage in the commodity markets could have a negative impact on Japanese securities.
Pacer BlueStar Engineering the Future ETF \| Index Provider Risk Member
Prospectus [Line Items]
Risk [Text Block]	Index Provider Risk. There is no assurance that the Index Provider or any agents that act on its behalf, will compile the Index accurately, or that the Index will be determined, maintained, constructed, rebalanced, calculated or disseminated accurately. The Fund relies upon the Index Provider and its agents to compile, determine, maintain, construct, rebalance, calculate (or arrange for an agent to calculate), and disseminate the Index accurately. Any losses or costs associated with errors made by the Index Provider or its agents generally will be borne by the Fund and its shareholders. Because the Index includes international securities, the Index Provider may have limited information or may be more prone to mistakes based on the data available and such mistakes may have a greater impact on the Fund’s performance, which may increase the risks to the Fund.
Pacer BlueStar Engineering the Future ETF \| Passive Investment Risk Member
Prospectus [Line Items]
Risk [Text Block]	Passive Investment Risk. The Fund is not actively managed and the Adviser would not sell a security due to current or projected underperformance of a security, industry or sector, unless that security is removed from the Index or the selling of shares of that security is otherwise required upon a reconstitution of the Index in accordance with the Index methodology. The Fund invests in securities included in the Index, regardless of their investment merits. The Fund does not take defensive positions under any market conditions, including conditions that are adverse to the performance of the Fund.
Pacer BlueStar Engineering the Future ETF \| Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Sector Risk. To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors. ◦Industrials Sector Risk. The Fund may invest in companies in the industrials sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. The industrials sector may be affected by changes in the supply of and demand for products and services, product obsolescence, claims for environmental damage or product liability and general economic conditions, among other factors. ◦Information Technology Sector Risk. Market or economic factors impacting information technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of information technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of information technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.
Pacer BlueStar Engineering the Future ETF \| Tracking Error Risk Member
Prospectus [Line Items]
Risk [Text Block]	Tracking Error Risk. As with all index funds, the performance of the Fund and its Index may differ from each other for a variety of reasons. For example, the Fund incurs operating expenses and portfolio transaction costs not incurred by the Index. In addition, the Fund may not be fully invested in the securities of the Index at all times or may hold securities not included in the Index.
Pacer BlueStar Engineering the Future ETF \| ETF Risks, Cash Redemption Risk Member
Prospectus [Line Items]
Risk [Text Block]	Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. ETF shares can only be redeemed in creation units by APs. Individual shareholders may only purchase and sell ETF shares on a secondary market.
Pacer BlueStar Engineering the Future ETF \| Geographic Concentration Risk 1, Risks Related To Investing In Europe Risk Member
Prospectus [Line Items]
Risk [Text Block]	Risks Related to Investing in Europe. The economies and markets of European countries are often closely connected and interdependent, and events in one country in Europe can have an adverse impact on other European countries. The Fund makes investments in securities of issuers that are domiciled in, or have significant operations in, the United Kingdom (UK) and the member countries of the European Union (“EU”) that are subject to economic and monetary controls that can adversely affect the Fund’s investments. The European financial markets have experienced volatility and adverse trends in recent years and these events have adversely affected the exchange rate of the euro and/or the British pound and may continue to significantly affect other European countries. Decreasing imports or exports, changes in governmental or EU regulations on trade, changes in the exchange rate of the euro and/or the British pound, the default or threat of default by a European country on its sovereign debt, and/or an economic recession in a European country may have a significant adverse effect on the economies of the countries and their trading partners, including some or all of the European countries in which the Fund invests.
Pacer BlueStar Engineering the Future ETF \| Market Capitalization Risk Member
Prospectus [Line Items]
Risk [Text Block]	Market Capitalization Risk. ◦Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion. ◦Mid-Capitalization Investing. The securities of mid-capitalization companies may be more vulnerable to adverse issuer, market, political, or economic developments than securities of large-capitalization companies. The securities of mid-capitalization companies generally trade in lower volumes and are subject to greater and more unpredictable price changes than large-capitalization stocks or the stock market as a whole.
Pacer BlueStar Engineering the Future ETF \| Market Capitalization Risk, Large-Capitalization Investing Risk Member
Prospectus [Line Items]
Risk [Text Block]	Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion.
Pacer BlueStar Engineering the Future ETF \| Market Capitalization Risk, Mid-Capitalization Investing Risk Member
Prospectus [Line Items]
Risk [Text Block]	Mid-Capitalization Investing. The securities of mid-capitalization companies may be more vulnerable to adverse issuer, market, political, or economic developments than securities of large-capitalization companies. The securities of mid-capitalization companies generally trade in lower volumes and are subject to greater and more unpredictable price changes than large-capitalization stocks or the stock market as a whole.
Pacer BlueStar Engineering the Future ETF \| Concentration In Robotics And 3D Printing Companies Risk Member
Prospectus [Line Items]
Risk [Text Block]	Concentration in Robotics and 3D Printing Companies Risk. The Robotics and 3D Printing industry can be significantly affected by intense competition, aggressive pricing, technological innovations, and product obsolescence. Companies in the software industry are subject to significant competitive pressures, such as aggressive pricing, new market entrants, competition for market share, short product cycles due to an accelerated rate of technological developments and the potential for limited earnings and/or falling profit margins. These companies also face the risks that new services, equipment or technologies will not be accepted by consumers and businesses or will become rapidly obsolete. These factors can affect the profitability of these companies and, as a result, the value of their securities. Also, patent protection is integral to the success of many companies in this industry, and profitability can be affected materially by, among other things, the cost of obtaining (or failing to obtain) patent approvals, the cost of litigating patent infringement and the loss of patent protection for products (which significantly increases pricing pressures and can materially reduce profitability with respect to such products). In addition, many software companies have limited operating histories. Prices of these companies’ securities historically have been more volatile than other securities, especially over the short term.
Pacer BlueStar Engineering the Future ETF \| Geographic Concentration Risk 1, Risks Related To Investing In Japan Risk Member
Prospectus [Line Items]
Risk [Text Block]	Risks Related to Investing in Japan. The Japanese economy may be subject to considerable degrees of economic, political and social instability, which could have a negative impact on Japanese securities. Since the year 2000, Japan’s economic growth rate has remained relatively low and it may remain low in the future. In addition, Japan is subject to the risk of natural disasters, such as earthquakes, volcanoes, typhoons and tsunamis. Additionally, decreasing U.S. imports, new trade regulations, changes in the U.S. dollar exchange rates, a recession in the United States or continued increases in foreclosure rates may have an adverse impact on the economy of Japan. Japan also has few natural resources, and any fluctuation or shortage in the commodity markets could have a negative impact on Japanese securities.
Pacer BlueStar Engineering the Future ETF \| Sector Risk, Industrials Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Industrials Sector Risk. The Fund may invest in companies in the industrials sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. The industrials sector may be affected by changes in the supply of and demand for products and services, product obsolescence, claims for environmental damage or product liability and general economic conditions, among other factors.
Pacer BlueStar Engineering the Future ETF \| Sector Risk, Information Technology Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Information Technology Sector Risk. Market or economic factors impacting information technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of information technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of information technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.
Pacer BlueStar Engineering the Future ETF \| Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	You can lose money on your investment in the Fund.
Pacer BlueStar Engineering the Future ETF \| Risk Not Insured Depository Institution [Member]
Prospectus [Line Items]
Risk [Text Block]	Depositary Receipt Risk. Depositary Receipts involve risks similar to those associated with investments in foreign securities, such as changes in political or economic conditions of other countries and changes in the exchange rates of foreign currencies. Depositary Receipts listed on U.S. exchanges are issued by banks or trust companies and entitle the holder to all dividends and capital gains that are paid out on the underlying foreign shares (“Underlying Shares”). When the Fund invests in Depositary Receipts as a substitute for an investment directly in the Underlying Shares, the Fund is exposed to the risk that the Depositary Receipts may not provide a return that corresponds precisely with that of the Underlying Shares.
Pacer BlueStar Engineering the Future ETF \| Risk Nondiversified Status [Member]
Prospectus [Line Items]
Risk [Text Block]	Non-Diversification Risk. Although the Fund intends to invest in a variety of securities and instruments, the Fund is considered to be non-diversified, which means that it may invest more of its assets in the securities of a single issuer or a smaller number of issuers than if it were a diversified fund. As a result, the Fund may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	Concentration Risk. If the Index concentrates in an industry or group of industries, the Fund’s investments may be concentrated accordingly. In such event, the value of the Fund’s shares may rise and fall more than the value of shares of a fund that invests in securities of companies in a broader range of industries. In addition, at times, an industry or group of industries in which the Fund is concentrated may be out of favor and underperform other industries or groups of industries.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| Equity Market Risk Member
Prospectus [Line Items]
Risk [Text Block]	Equity Market Risk. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific industries, sectors or companies in which the Fund invests. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in and perceptions of their issuers change. The Fund’s NAV and market price may fluctuate significantly in response to these and other factors. As a result, an investor could lose money over short or long periods of time.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| ETF Risks Member
Prospectus [Line Items]
Risk [Text Block]	ETF Risks. The Fund is an ETF and, as a result of an ETF’s structure, is exposed to the following risks: ◦Authorized Participants (“APs”), Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions. ◦Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments. ◦Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund’s portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund’s NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices. ◦Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as the Nasdaq Stock Market LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| ETF Risks, Authorized Participants ("APs"), Market Makers, And Liquidity Providers Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	Authorized Participants (“APs”), Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| ETF Risks, Costs Of Buying Or Selling Shares Of The Fund Risk Member
Prospectus [Line Items]
Risk [Text Block]	Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| ETF Risks, Shares Of The Fund May Trade At Prices Other Than NAV Risk Member
Prospectus [Line Items]
Risk [Text Block]	Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund’s portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund’s NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| ETF Risks, Trading Risk Member
Prospectus [Line Items]
Risk [Text Block]	Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as the Nasdaq Stock Market LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| Index Provider Risk Member
Prospectus [Line Items]
Risk [Text Block]	Index Provider Risk. There is no assurance that an Index or Sub-Index provider or any agents that act on its behalf, will compile the Index accurately, or that the Index will be determined, maintained, constructed, rebalanced, calculated or disseminated accurately. The Fund relies upon the Index and Sub-Index providers and their agents to compile, determine, maintain, construct, rebalance, calculate (or arrange for an agent to calculate), and disseminate the Index accurately. Any losses or costs associated with errors made by the Adviser or its agents generally will be borne by the Fund and its shareholders.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| Large-Capitalization Investing Risk Member
Prospectus [Line Items]
Risk [Text Block]	Large-Capitalization Investing Risk. The Fund may invest in the securities of large-capitalization companies. As a result, the Fund’s performance may be adversely affected if securities of large-capitalization companies underperform securities of smaller-capitalization companies or the market as a whole. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| Passive Investment Risk Member
Prospectus [Line Items]
Risk [Text Block]	Passive Investment Risk. The Fund is not actively managed and the Adviser would not sell a security due to current or projected underperformance of a security, industry or sector, unless that security is removed from the Index or the selling of shares of that security is otherwise required upon a reconstitution of the Index in accordance with the Index methodology. The Fund invests in securities included in the Index, regardless of their investment merits. The Fund does not take defensive positions under any market conditions, including conditions that are adverse to the performance of the Fund.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Sector Risk. To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors. ◦Energy Sector Risk. The Fund may invest in companies in the energy sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. The profitability of companies in the energy sector is related to worldwide energy prices, exploration, and production spending. The value of securities issued by companies in the energy sector may decline for many reasons, including, among others, changes in energy prices, government regulations, energy conservation efforts, natural disasters, and potential civil liabilities. Such companies are also subject to risks changes in economic conditions, as well as market and political risks of the countries where energy companies are located or do business. ◦Information Technology Sector Risk. The Fund may invest in companies in the information technology sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. Market or economic factors impacting information technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of information technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of information technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| Sector Risk, Energy Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Energy Sector Risk. The Fund may invest in companies in the energy sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. The profitability of companies in the energy sector is related to worldwide energy prices, exploration, and production spending. The value of securities issued by companies in the energy sector may decline for many reasons, including, among others, changes in energy prices, government regulations, energy conservation efforts, natural disasters, and potential civil liabilities. Such companies are also subject to risks changes in economic conditions, as well as market and political risks of the countries where energy companies are located or do business.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| Tracking Error Risk Member
Prospectus [Line Items]
Risk [Text Block]	Tracking Error Risk. As with all index funds, the performance of the Fund and its Index may differ from each other for a variety of reasons. For example, the Fund incurs operating expenses and portfolio transaction costs not incurred by the Index. In addition, the Fund may not be fully invested in the securities of the Index at all times or may hold securities not included in the Index.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| Sector Risk, Information Technology Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Information Technology Sector Risk. The Fund may invest in companies in the information technology sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. Market or economic factors impacting information technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of information technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of information technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| Calculation Methodology Risk Member
Prospectus [Line Items]
Risk [Text Block]	Calculation Methodology Risk. The Index relies directly or indirectly on various sources of information to assess the criteria of issuers included in the Index, including information that may be based on assumptions and estimates. Neither the Fund, the Index Provider, or the Adviser can offer assurances that the Index’s calculation methodology or sources of information will provide an accurate assessment of included components or a correct valuation of securities, nor can they guarantee the availability or timeliness of the production of the Index.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| High Portfolio Turnover Risk Member
Prospectus [Line Items]
Risk [Text Block]	High Portfolio Turnover Risk. At times, the Fund may have a portfolio turnover rate substantially greater than 100%. A high portfolio turnover rate would result in correspondingly greater transaction expenses, including brokerage commissions, dealer mark ups and other transaction costs, on the sale of securities and on reinvestment in other securities and may result in reduced performance and the distribution to shareholders of additional capital gains for tax purposes. These factors may negatively affect the Fund’s performance.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| Limited Operating History Risk Member
Prospectus [Line Items]
Risk [Text Block]	Limited Operating History. The Fund is a recently organized management investment company with limited operating history. As a result, prospective investors have a limited track record on which to base their investment decision. An investment in the Fund may therefore involve greater uncertainty than an investment in a fund with a more established record of performance.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| Mid-Capitalization Investing Risk Member
Prospectus [Line Items]
Risk [Text Block]	Mid-Capitalization Investing Risk. The Fund may invest in the securities of mid-capitalization companies. As a result, the Fund’s performance may be adversely affected if securities of mid-capitalization companies underperform securities of other capitalization ranges or the market as a whole. Securities of smaller companies trade in smaller volumes and are often more vulnerable to market volatility than securities of larger companies.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	You can lose money on your investment in the Fund.
Pacer Cash COWZ 100-Nasdaq 100 Rotator ETF \| Risk Nondiversified Status [Member]
Prospectus [Line Items]
Risk [Text Block]	Non-Diversification Risk. Although the Fund intends to invest in a variety of securities and instruments, the Fund is considered to be non-diversified, which means that it may invest more of its assets in the securities of a single issuer or a smaller number of issuers than if it were a diversified fund. As a result, the Fund may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	Concentration Risk. If the Index concentrates in an industry or group of industries, the Fund’s investments may be concentrated accordingly. In such event, the value of the Fund’s shares may rise and fall more than the value of shares of a fund that invests in securities of companies in a broader range of industries. In addition, at times, an industry or group of industries in which the Fund is concentrated may be out of favor and underperform other industries or groups of industries.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Equity Market Risk Member
Prospectus [Line Items]
Risk [Text Block]	Equity Market Risk. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific industries, sectors or companies in which the Fund invests. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in and perceptions of their issuers change. The Fund’s NAV and market price may fluctuate significantly in response to these and other factors. As a result, an investor could lose money over short or long periods of time.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| ETF Risks Member
Prospectus [Line Items]
Risk [Text Block]	ETF Risks. The Fund is an ETF and, as a result of an ETF’s structure, is exposed to the following risks: ◦Authorized Participants (“APs”), Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions. ◦Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments. ◦Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund’s portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund’s NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices. ◦Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as NYSE Arca, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| ETF Risks, Authorized Participants ("APs"), Market Makers, And Liquidity Providers Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	Authorized Participants (“APs”), Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| ETF Risks, Costs Of Buying Or Selling Shares Of The Fund Risk Member
Prospectus [Line Items]
Risk [Text Block]	Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| ETF Risks, Shares Of The Fund May Trade At Prices Other Than NAV Risk Member
Prospectus [Line Items]
Risk [Text Block]	Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund’s portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund’s NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| ETF Risks, Trading Risk Member
Prospectus [Line Items]
Risk [Text Block]	Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as NYSE Arca, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Foreign Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Foreign Securities Risk. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. Investments in non-U.S. securities also may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. These and other factors can make investments in the Fund more volatile and potentially less liquid than other types of investments. Foreign securities held by the Fund may trade on markets that are closed when U.S. markets are open, which may lead to a difference in the value of the Fund and the underlying foreign securities. The Fund’s investments in depositary receipts may include American, European and Global Depositary Receipts (“ADRs,” “EDRs,” and “GDRs,” respectively). ADRs are receipts that represent interests in foreign securities held on deposit by U.S. banks. EDRs and GDRs have the same qualities as ADRs, except that they may be traded in several international trading markets. Unsponsored depositary receipts are organized independently and without the cooperation of the foreign issuer of the underlying securities and involve additional risks because U.S. reporting requirements do not apply. In addition, the issuing bank may deduct shareholder distribution, custody, foreign currency exchange, and other fees from the payment of dividends.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Geographic Concentration Risk 1 Member
Prospectus [Line Items]
Risk [Text Block]	Geographic Concentration Risk. To the extent the Fund invests a significant portion of its assets in the securities of companies of a single country or region, it is more likely to be impacted by events or conditions affecting that country or region.◦Risks Related to Investing in Japan. The Japanese economy may be subject to considerable degrees of economic, political and social instability, which could have a negative impact on Japanese securities. Since the year 2000, Japan’s economic growth rate has remained relatively low and it may remain low in the future. In addition, Japan is subject to the risk of natural disasters, such as earthquakes, volcanoes, typhoons and tsunamis. Additionally, decreasing U.S. imports, new trade regulations, changes in the U.S. dollar exchange rates, a recession in the United States or continued increases in foreclosure rates may have an adverse impact on the economy of Japan. Japan also has few natural resources, and any fluctuation or shortage in the commodity markets could have a negative impact on Japanese securities.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Large-Capitalization Investing Risk Member
Prospectus [Line Items]
Risk [Text Block]	Large-Capitalization Investing Risk. The Fund may invest in the securities of large-capitalization companies. As a result, the Fund’s performance may be adversely affected if securities of large-capitalization companies underperform securities of smaller-capitalization companies or the market as a whole. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Passive Investment Risk Member
Prospectus [Line Items]
Risk [Text Block]	Passive Investment Risk. The Fund is not actively managed and the Adviser would not sell a security due to current or projected underperformance of a security, industry or sector, unless that security is removed from the Index or the selling of shares of that security is otherwise required upon a reconstitution of the Index in accordance with the Index methodology. The Fund invests in securities included in the Index, regardless of their investment merits.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Sector Risk. To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors. ◦Industrials Sector Risk. The Fund may invest in companies in the industrials sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. The industrials sector may be affected by changes in the supply of and demand for products and services, product obsolescence, claims for environmental damage or product liability and general economic conditions, among other factors. ◦Information Technology Sector Risk. Market or economic factors impacting information technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of information technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of information technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Tracking Error Risk Member
Prospectus [Line Items]
Risk [Text Block]	Tracking Error Risk. As with all index funds, the performance of the Fund and its Index may differ from each other for a variety of reasons. For example, the Fund incurs operating expenses and portfolio transaction costs not incurred by the Index. In addition, the Fund may not be fully invested in the securities of the Index at all times or may hold securities not included in the Index.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Geographic Concentration Risk 1, Risks Related To Investing In Japan Risk Member
Prospectus [Line Items]
Risk [Text Block]	Risks Related to Investing in Japan. The Japanese economy may be subject to considerable degrees of economic, political and social instability, which could have a negative impact on Japanese securities. Since the year 2000, Japan’s economic growth rate has remained relatively low and it may remain low in the future. In addition, Japan is subject to the risk of natural disasters, such as earthquakes, volcanoes, typhoons and tsunamis. Additionally, decreasing U.S. imports, new trade regulations, changes in the U.S. dollar exchange rates, a recession in the United States or continued increases in foreclosure rates may have an adverse impact on the economy of Japan. Japan also has few natural resources, and any fluctuation or shortage in the commodity markets could have a negative impact on Japanese securities.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Sector Risk, Industrials Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Industrials Sector Risk. The Fund may invest in companies in the industrials sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. The industrials sector may be affected by changes in the supply of and demand for products and services, product obsolescence, claims for environmental damage or product liability and general economic conditions, among other factors.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Sector Risk, Information Technology Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Information Technology Sector Risk. Market or economic factors impacting information technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of information technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of information technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Calculation Methodology Risk Member
Prospectus [Line Items]
Risk [Text Block]	Calculation Methodology Risk. The Index relies directly or indirectly on various sources of information to assess the criteria of issuers included in the Index, including information that may be based on assumptions and estimates. Neither the Fund, the Index Provider, or the Adviser (as defined below) can offer assurances that the Index’s calculation methodology or sources of information will provide an accurate assessment of included components or a correct valuation of securities, nor can they guarantee the availability or timeliness of the production of the Index.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Limited Operating History Risk Member
Prospectus [Line Items]
Risk [Text Block]	Limited Operating History. The Fund is a recently organized management investment company with limited operating history. As a result, prospective investors have a limited track record on which to base their investment decision. An investment in the Fund may therefore involve greater uncertainty than an investment in a fund with a more established record of performance.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Mid-Capitalization Investing Risk Member
Prospectus [Line Items]
Risk [Text Block]	Mid-Capitalization Investing Risk. The Fund may invest in the securities of mid-capitalization companies. As a result, the Fund’s performance may be adversely affected if securities of mid-capitalization companies underperform securities of other capitalization ranges or the market as a whole. Securities of smaller companies trade in smaller volumes and are often more vulnerable to market volatility than securities of larger companies.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	You can lose money on your investment in the Fund.
Pacer Developed Markets Cash Cows Growth Leaders ETF \| Risk Nondiversified Status [Member]
Prospectus [Line Items]
Risk [Text Block]	Non-Diversification Risk. Although the Fund intends to invest in a variety of securities and instruments, the Fund is considered to be non-diversified, which means that it may invest more of its assets in the securities of a single issuer or a smaller number of issuers than if it were a diversified fund. As a result, the Fund may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	Concentration Risk. If the Index concentrates in an industry or group of industries, the Fund’s investments may be concentrated accordingly. In such event, the value of the Fund’s shares may rise and fall more than the value of shares of a fund that invests in securities of companies in a broader range of industries. In addition, at times, an industry or group of industries in which the Fund is concentrated may be out of favor and underperform other industries or groups of industries.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Currency Exchange Rate Risk Member
Prospectus [Line Items]
Risk [Text Block]	•Currency Exchange Rate Risk. The Fund’s assets may include investments denominated in non-U.S. currencies, such as the euro, or in securities or other assets that provide exposure to such currencies. Changes in currency exchange rates and the relative value of non-U.S. currencies will affect the value of the Fund’s investment and the value of your Fund shares. Currency exchange rates can be very volatile and can change quickly and unpredictably. As a result, the value of an investment in the Fund may change quickly and without warning and you may lose money.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Equity Market Risk Member
Prospectus [Line Items]
Risk [Text Block]	Equity Market Risk. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific industries, sectors or companies in which the Fund invests. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in and perceptions of their issuers change. The Fund’s NAV and market price may fluctuate significantly in response to these and other factors. As a result, an investor could lose money over short or long periods of time.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| ETF Risks Member
Prospectus [Line Items]
Risk [Text Block]	•ETF Risks. The Fund is an ETF and, as a result of an ETF’s structure, is exposed to the following risks: ◦Authorized Participants (“APs”), Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions. ◦Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. ETF shares can only be redeemed in creation units by APs. Individual shareholders may only purchase and sell ETF shares on a secondary market. ◦Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments. ◦Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund’s portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund’s NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices. ◦Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as The Nasdaq Stock Market LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| ETF Risks, Authorized Participants ("APs"), Market Makers, And Liquidity Providers Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	Authorized Participants (“APs”), Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| ETF Risks, Costs Of Buying Or Selling Shares Of The Fund Risk Member
Prospectus [Line Items]
Risk [Text Block]	Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| ETF Risks, Shares Of The Fund May Trade At Prices Other Than NAV Risk Member
Prospectus [Line Items]
Risk [Text Block]	◦Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund’s portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund’s NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| ETF Risks, Trading Risk Member
Prospectus [Line Items]
Risk [Text Block]	Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as The Nasdaq Stock Market LLC (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Foreign Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Foreign Securities Risk. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. Investments in non-U.S. securities also may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. These and other factors can make investments in the Fund more volatile and potentially less liquid than other types of investments. Foreign securities held by the Fund may trade on markets that are closed when U.S. markets are open, which may lead to a difference in the value of the Fund and the underlying foreign securities.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Index Provider Risk Member
Prospectus [Line Items]
Risk [Text Block]	Index Provider Risk. There is no assurance that Metaurus (the Fund’s index provider) or any agents that act on its behalf, will compile the Index accurately, or that the Index will be determined, maintained, constructed, rebalanced, calculated or disseminated accurately. The Fund relies upon Metaurus and its agents to compile, determine, maintain, construct, rebalance, calculate (or arrange for an agent to calculate), and disseminate the Index accurately. Any losses or costs associated with errors made by Metaurus or its agents generally will be borne by the Fund and its shareholders.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Large-Capitalization Investing Risk Member
Prospectus [Line Items]
Risk [Text Block]	Large-Capitalization Investing Risk. The Fund may invest in the securities of large-capitalization companies. As a result, the Fund’s performance may be adversely affected if securities of large-capitalization companies underperform securities of smaller-capitalization companies or the market as a whole. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Passive Investment Risk Member
Prospectus [Line Items]
Risk [Text Block]	Passive Investment Risk. The Fund is not actively managed and the Sub-Adviser would not sell a security due to current or projected underperformance of a security, industry or sector, unless that security is removed from the Index or the selling of shares of that security is otherwise required upon a reconstitution of the Index in accordance with the Index methodology. The Fund invests in securities included in the Index, regardless of their investment merits. The Fund does not take defensive positions under any market conditions, including conditions that are adverse to the performance of the Fund.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	•Sector Risk. To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors. ◦Information Technology Sector Risk. Market or economic factors impacting information technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of information technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of information technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Tracking Error Risk Member
Prospectus [Line Items]
Risk [Text Block]	Tracking Error Risk. As with all index funds, the performance of the Fund and its Index may differ from each other for a variety of reasons. For example, the Fund incurs operating expenses and portfolio transaction costs not incurred by the Index. In addition, the Fund may not be fully invested in the securities of the Index at all times or may hold securities not included in the Index.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| ETF Risks, Cash Redemption Risk Member
Prospectus [Line Items]
Risk [Text Block]	Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. ETF shares can only be redeemed in creation units by APs. Individual shareholders may only purchase and sell ETF shares on a secondary market.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Other Investment Companies Risk Member
Prospectus [Line Items]
Risk [Text Block]	Other Investment Companies Risk. The Fund will incur higher and duplicative expenses when it invests in other investment companies such as ETFs. There is also the risk that the Fund may suffer losses due to the investment practices of the underlying funds. When the Fund invests in other investment companies, the Fund will be subject to substantially the same risks as those associated with the direct ownership of securities held by such investment companies. Investments in ETFs are also subject to the “ETF Risks” described above.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Sector Risk, Information Technology Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Information Technology Sector Risk. Market or economic factors impacting information technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of information technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of information technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Calculation Methodology Risk Member
Prospectus [Line Items]
Risk [Text Block]	Calculation Methodology Risk. The Index relies directly or indirectly on various sources of information to assess the criteria of issuers included in the Index, including information that may be based on assumptions and estimates. Neither the Fund, the Index Provider, or the Adviser can offer assurances that the Index’s calculation methodology or sources of information will provide an accurate assessment of included components or a correct valuation of securities, nor can they guarantee the availability or timeliness of the production of the Index.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Limited Operating History Risk Member
Prospectus [Line Items]
Risk [Text Block]	Limited Operating History. The Fund is a recently organized management investment company with limited operating history. As a result, prospective investors have a limited track record on which to base their investment decision. An investment in the Fund may therefore involve greater uncertainty than an investment in a fund with a more established record of performance.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Derivatives Risk Member
Prospectus [Line Items]
Risk [Text Block]	Derivatives Risk. Derivatives include instruments and contracts that are based on, and are valued in relation to, one or more underlying securities, financial benchmarks or indices, such as futures contracts. Derivatives typically have economic leverage inherent in their terms. Futures contracts can be highly volatile, illiquid, and difficult to value. Adverse changes in the value or level of the underlying asset or index, which the Fund may not directly own, can result in a loss to the Fund substantially greater than the amount invested in the derivative itself. The use of derivative instruments also exposes the Fund to additional risks and transaction costs. A risk of the Fund’s use of derivatives is that the fluctuations in their values may not correlate perfectly with the overall securities markets. A small position in futures contracts could have a potentially large impact on the Fund’s performance. Trading restrictions or limitations may be imposed by an exchange, and government regulations may restrict trading in futures contracts.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Dividends Risk Member
Prospectus [Line Items]
Risk [Text Block]	•Dividends Risk. There can be no assurance that a dividend-paying company will continue to make regular dividend payments. The ability for a company to pay dividends is dependent on the economic climate and the companies’ current earnings and capital resources. Changes in economic conditions or a company’s earnings or financial resources could cause a company to reduce its dividend payments or suspend the payment of dividends altogether. The possibility that such companies could reduce or eliminate the payment of dividends in the future, especially if the companies are facing an economic downturn, could negatively affect the Fund’s performance.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Futures Contract Risk Member
Prospectus [Line Items]
Risk [Text Block]	Futures Contract Risk. The primary risks associated with the use of futures contracts, which may adversely affect the Fund’s NAV and total return, are (a) the imperfect correlation between the change in market value of the underlying securities or index and the price of the futures contract; (b) possible lack of a liquid secondary market for a futures contract and the resulting inability to close a futures contract when desired; (c) the possibility that the counterparty will default in the performance of its obligations; and (d) if the Fund has insufficient cash, it may have to sell securities from its portfolio to meet daily variation margin requirements, and the Fund may have to sell securities at a time when it maybe disadvantageous to do so. The settlement price of Nasdaq-100 Dividend Futures or similar futures held by the Fund only reflect unadjusted ordinary dividends declared and paid in the contract period on the individual companies included in the Index. Any special dividends, extraordinary dividends and return of capital payments paid by a company included in the Index will not be reflected in the settlement value of the Nasdaq-100 Dividend Futures or similar futures held by the Fund. A special dividend is a non-recurring dividend distributed by a company that is separate from the regular cycle of dividends and may be larger than a company’s typical dividend payment, such as the spin-off of assets of the company being distributed to shareholders. The Fund may not perform as well if the actual future growth in dividends paid on common stocks is below the expected growth in dividends, as reflected in the market prices at which the Fund buys the Nasdaq-100 Dividend Futures.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Government Obligations Risk Member
Prospectus [Line Items]
Risk [Text Block]	Government Obligations Risk. The Fund may invest in securities issued by the U.S. government. There can be no guarantee that the United States will be able to meet its payment obligations with respect to such securities. Additionally, market prices and yields of securities supported by the full faith and credit of the U.S. government may decline or be negative for short or long periods of time.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Growth Investing Risk Member
Prospectus [Line Items]
Risk [Text Block]	Growth Investing Risk. Growth companies are those that a portfolio manager believes have the potential for above average or rapid growth but may be subject to greater price volatility than investments in “undervalued” companies.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| International Operations Risk Member
Prospectus [Line Items]
Risk [Text Block]	International Operations Risk. Investments in companies with significant business operations outside of the United States may involve certain risks that may not be present with investments in U.S. companies. For example, international operations may be subject to risk of loss due to foreign currency fluctuations; changes in foreign political and economic environments, regionally, nationally, and locally; challenges of complying with a wide variety of foreign laws, including corporate governance, operations, taxes, and litigation; differing lending practices; differences in cultures; changes in applicable laws and regulations in the United States that affect international operations; changes in applicable laws and regulations in foreign jurisdictions; difficulties in managing international operations; and obstacles to the repatriation of earnings and cash. These and other factors can make an investment in the Fund more volatile than other types of investments.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Trading Halt Risk Member
Prospectus [Line Items]
Risk [Text Block]	Trading Halt Risk. The Fund invests in futures contracts. The major exchanges on which these contracts are traded have established limits on how much the trading price of a futures contract may decline over various time periods within a day, and may halt trading in a contract that exceeds such limits. If a trading halt occurs, the Fund may temporarily be unable to purchase or sell certain securities.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	You can lose money on your investment in the Fund.
Pacer Metaurus Nasdaq-100 Dividend Multiplier 600 ETF \| Risk Nondiversified Status [Member]
Prospectus [Line Items]
Risk [Text Block]	Non-Diversification Risk. Although the Fund intends to invest in a variety of securities and instruments, the Fund is considered to be non-diversified, which means that it may invest more of its assets in the securities of a single issuer or a smaller number of issuers than if it were a diversified fund. As a result, the Fund may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	Concentration Risk. If the Index concentrates in an industry or group of industries, the Fund’s investments may be concentrated accordingly. In such event, the value of the Fund’s shares may rise and fall more than the value of shares of a fund that invests in securities of companies in a broader range of industries. In addition, at times, an industry or group of industries in which the Fund is concentrated may be out of favor and underperform other industries or groups of industries.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Equity Market Risk Member
Prospectus [Line Items]
Risk [Text Block]	Equity Market Risk. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific industries, sectors or companies in which the Fund invests. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in and perceptions of their issuers change. The Fund’s NAV and market price may fluctuate significantly in response to these and other factors. As a result, an investor could lose money over short or long periods of time.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| ETF Risks Member
Prospectus [Line Items]
Risk [Text Block]	ETF Risks. The Fund is an ETF and, as a result of an ETF’s structure, is exposed to the following risks: ◦Authorized Participants (“APs”), Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions. ◦Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. ETF shares can only be redeemed in creation units by APs. Individual shareholders may only purchase and sell ETF shares on a secondary market. ◦Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments. ◦Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund’s portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund’s NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices. ◦Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as NYSE Arca, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| ETF Risks, Authorized Participants ("APs"), Market Makers, And Liquidity Providers Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	Authorized Participants (“APs”), Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as APs. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares of the Fund may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| ETF Risks, Costs Of Buying Or Selling Shares Of The Fund Risk Member
Prospectus [Line Items]
Risk [Text Block]	Costs of Buying or Selling Shares of the Fund. Due to the costs of buying or selling shares of the Fund, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of shares of the Fund may significantly reduce investment results and an investment in shares of the Fund may not be advisable for investors who anticipate regularly making small investments.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| ETF Risks, Shares Of The Fund May Trade At Prices Other Than NAV Risk Member
Prospectus [Line Items]
Risk [Text Block]	Shares of the Fund May Trade at Prices Other Than NAV. As with all ETFs, shares of the Fund may be bought and sold in the secondary market at market prices. The price of shares of the Fund, like the price of all traded securities, will be subject to factors such as supply and demand, as well as the current value of the Fund’s portfolio holdings. Although it is expected that the market price of the shares of the Fund will approximate the Fund’s NAV, there may be times when the market price of the shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount). This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for shares in the secondary market, in which case such premiums or discounts may be significant. Shares of the Fund will be bought and sold in the secondary market at market prices.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| ETF Risks, Trading Risk Member
Prospectus [Line Items]
Risk [Text Block]	Trading. Although shares of the Fund are listed for trading on a national securities exchange, such as NYSE Arca, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that shares of the Fund will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of shares of the Fund may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than shares of the Fund, and this could lead to differences between the market price of the shares of the Fund and the underlying value of those shares.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Index Provider Risk Member
Prospectus [Line Items]
Risk [Text Block]	Index Provider Risk. There is no assurance that Metaurus (the Fund’s index provider) or any agents that act on its behalf, will compile the Index accurately, or that the Index will be determined, maintained, constructed, rebalanced, calculated or disseminated accurately. The Fund relies upon Metaurus and its agents to compile, determine, maintain, construct, rebalance, calculate (or arrange for an agent to calculate), and disseminate the Index accurately. Any losses or costs associated with errors made by Metaurus or its agents generally will be borne by the Fund and its shareholders.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Large-Capitalization Investing Risk Member
Prospectus [Line Items]
Risk [Text Block]	Large-Capitalization Investing Risk. The Fund may invest in the securities of large-capitalization companies. As a result, the Fund’s performance may be adversely affected if securities of large-capitalization companies underperform securities of smaller-capitalization companies or the market as a whole. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Passive Investment Risk Member
Prospectus [Line Items]
Risk [Text Block]	Passive Investment Risk. The Fund is not actively managed and the Sub-Adviser would not sell a security due to current or projected underperformance of a security, industry or sector, unless that security is removed from the Index or the selling of shares of that security is otherwise required upon a reconstitution of the Index in accordance with the Index methodology. The Fund invests in securities included in the Index, regardless of their investment merits. The Fund does not take defensive positions under any market conditions, including conditions that are adverse to the performance of the Fund.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Sector Risk. To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors. ◦Information Technology Sector Risk. Market or economic factors impacting information technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of information technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of information technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Tracking Error Risk Member
Prospectus [Line Items]
Risk [Text Block]	Tracking Error Risk. As with all index funds, the performance of the Fund and its Index may differ from each other for a variety of reasons. For example, the Fund incurs operating expenses and portfolio transaction costs not incurred by the Index. In addition, the Fund may not be fully invested in the securities of the Index at all times or may hold securities not included in the Index.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| ETF Risks, Cash Redemption Risk Member
Prospectus [Line Items]
Risk [Text Block]	Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. ETF shares can only be redeemed in creation units by APs. Individual shareholders may only purchase and sell ETF shares on a secondary market.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Other Investment Companies Risk Member
Prospectus [Line Items]
Risk [Text Block]	•Other Investment Companies Risk. The Fund will incur higher and duplicative expenses when it invests in other investment companies such as ETFs. There is also the risk that the Fund may suffer losses due to the investment practices of the underlying funds. When the Fund invests in other investment companies, the Fund will be subject to substantially the same risks as those associated with the direct ownership of securities held by such investment companies. Investments in ETFs are also subject to the “ETF Risks” described above.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Sector Risk, Information Technology Sector Risk Member
Prospectus [Line Items]
Risk [Text Block]	Information Technology Sector Risk. Market or economic factors impacting information technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of information technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of information technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Calculation Methodology Risk Member
Prospectus [Line Items]
Risk [Text Block]	Calculation Methodology Risk. The Index relies directly or indirectly on various sources of information to assess the criteria of issuers included in the Index, including information that may be based on assumptions and estimates. Neither the Fund, the Index Provider, or the Adviser can offer assurances that the Index’s calculation methodology or sources of information will provide an accurate assessment of included components or a correct valuation of securities, nor can they guarantee the availability or timeliness of the production of the Index.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Derivatives Risk Member
Prospectus [Line Items]
Risk [Text Block]	•Derivatives Risk. Derivatives include instruments and contracts that are based on, and are valued in relation to, one or more underlying securities, financial benchmarks or indices, such as futures contracts. Derivatives typically have economic leverage inherent in their terms. Futures contracts can be highly volatile, illiquid, and difficult to value. Adverse changes in the value or level of the underlying asset or index, which the Fund may not directly own, can result in a loss to the Fund substantially greater than the amount invested in the derivative itself. The use of derivative instruments also exposes the Fund to additional risks and transaction costs. A risk of the Fund’s use of derivatives is that the fluctuations in their values may not correlate perfectly with the overall securities markets. A small position in futures contracts could have a potentially large impact on the Fund’s performance. Trading restrictions or limitations may be imposed by an exchange, and government regulations may restrict trading in futures contracts.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Dividends Risk Member
Prospectus [Line Items]
Risk [Text Block]	Dividends Risk. There can be no assurance that a dividend-paying company will continue to make regular dividend payments. The ability for a company to pay dividends is dependent on the economic climate and the companies’ current earnings and capital resources. Changes in economic conditions or a company’s earnings or financial resources could cause a company to reduce its dividend payments or suspend the payment of dividends altogether. The possibility that such companies could reduce or eliminate the payment of dividends in the future, especially if the companies are facing an economic downturn, could negatively affect the Fund’s performance.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Futures Contract Risk Member
Prospectus [Line Items]
Risk [Text Block]	Futures Contract Risk. The primary risks associated with the use of futures contracts, which may adversely affect the Fund’s NAV and total return, are (a) the imperfect correlation between the change in market value of the underlying securities or index and the price of the futures contract; (b) possible lack of a liquid secondary market for a futures contract and the resulting inability to close a futures contract when desired; (c) the possibility that the counterparty will default in the performance of its obligations; and (d) if the Fund has insufficient cash, it may have to sell securities from its portfolio to meet daily variation margin requirements, and the Fund may have to sell securities at a time when it maybe disadvantageous to do so. The S&P Dividend Futures held by the Fund only reflect ordinary dividends paid on the common stocks included in the S&P 500. Any special dividends paid by a company will not be reflected in the settlement value of the S&P Dividend Futures. A special dividend is a non-recurring dividend distributed by a company that is separate from the regular cycle of dividends and may be larger than a company’s typical dividend payment, such as the spin-off of assets of the company being distributed to shareholders. The Fund may not perform as well if the actual future growth in dividends paid on common stocks is below the expected growth in dividends, as reflected in the market prices at which the Fund buys the S&P Dividend Futures.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Government Obligations Risk Member
Prospectus [Line Items]
Risk [Text Block]	Government Obligations Risk. The Fund may invest in securities issued by the U.S. government. There can be no guarantee that the United States will be able to meet its payment obligations with respect to such securities. Additionally, market prices and yields of securities supported by the full faith and credit of the U.S. government may decline or be negative for short or long periods of time.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Trading Halt Risk Member
Prospectus [Line Items]
Risk [Text Block]	Trading Halt Risk. The Fund invests in futures contracts. The major exchanges on which these contracts are traded have established limits on how much the trading price of a futures contract may decline over various time periods within a day, and may halt trading in a contract that exceeds such limits. If a trading halt occurs, the Fund may temporarily be unable to purchase or sell certain securities.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	You can lose money on your investment in the Fund.
Pacer Metaurus US Large Cap Dividend Multiplier 400 ETF \| Risk Nondiversified Status [Member]
Prospectus [Line Items]

Concentration in the Energy Infrastructure Industry Risk. The Index is expected to be concentrated in energy infrastructure companies. When the Fund focuses its investments in the energy infrastructure industry, financial, economic, business, and other developments affecting issuers in that industry, market, or economic sector will have a greater effect on the Fund than if it had not done so.Companies in the energy infrastructure industry are subject to many risks that can negatively impact the revenues and viability of companies in this industry, including, but not limited to, risks associated with companies owning and/or operating pipelines, gathering and processing assets, power infrastructure, propane assets, as well as capital markets, terrorism, natural disasters, climate change, operating, regulatory, environmental, supply and demand, and price volatility risks. The volatility of energy commodity prices can significantly affect energy companies due to the impact of prices on the volume of commodities developed, produced, gathered, and processed. Historically, energy commodity prices have been cyclical and exhibited significant volatility, which may adversely impact the value, operations, cash flows, and financial performance of energy companies. The volatility of energy commodity prices can also indirectly affect certain entities that operate in the midstream segment of the energy industry due to the impact of prices on the volume of commodities transported, processed, stored, or distributed.