Investment Strategy - Principal Capital Appreciation Select ETF |
Nov. 01, 2025 |
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| Prospectus [Line Items] | |
| Strategy [Heading] | On or about December 1, 2026, subject to shareholder approval, under Principal Investment Strategies, add the following after the first paragraph: |
| Strategy Narrative [Text Block] | The Fund is considered non-diversified, which means it can invest a higher percentage of assets in securities of individual issuers than a diversified fund. As a result, changes in the value of a single investment could cause greater fluctuations in the Fund's share price than would occur in a more diversified fund.
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