v3.26.1
Fees and Expenses
Jun. 30, 2026
Principal Equity Premium Income ETF  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses of the Fund
Expense Narrative [Text Block]
This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund ("Shares"). You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table or the example below.
Other Expenses, New Fund, Based on Estimates [Text] Based on estimated amounts.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Expense Example [Heading] Example
Expense Example Narrative [Text Block] This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the ends of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same.
Expense Example by, Year, Caption [Text] Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block] The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. This Fund is new and does not have a portfolio turnover rate to disclose.
Principal Finisterre Emerging Markets Diversified Income ETF  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses of the Fund
Expense Narrative [Text Block]
This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund ("Shares"). You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table or the example below.
Other Expenses, New Fund, Based on Estimates [Text] Based on estimated amounts.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Expense Example [Heading] Example
Expense Example Narrative [Text Block] This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the ends of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same.
Expense Example by, Year, Caption [Text] Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block] The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. This Fund is new and does not have a portfolio turnover rate to disclose.