Performance Management - Harbor Short Term Treasury ETF |
Jul. 31, 2026 |
|---|---|
| Prospectus [Line Items] | |
| Bar Chart and Performance Table [Heading] | <span style="color:#004DD6;font-family:Arial Narrow;font-size:14pt;font-weight:bold;">Performance</span> |
| Performance Narrative [Text Block] | Because the Fund is newly organized, the Fund has no reportable performance history. Once the Fund has operated for at least one calendar year, a bar chart and performance table will be included in the prospectus to show the performance of the Fund. When such information is included, this section will provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance history from year to year and showing how the Fund’s average annual total returns compare with those of a broad measure of market performance and an additional index. Please note that the Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. To obtain performance information, please visit the Fund’s website at harborcapital.com or call 800-422-1050. |
| Performance Past Does Not Indicate Future [Text] | <span style="color:#000000;font-family:Times New Roman;font-size:9pt;margin-left:0%;">Please note that the Fund’s past performance (before and after </span><span style="color:#000000;font-family:Times New Roman;font-size:9pt;margin-left:0%;">taxes) is not necessarily an indication of how the Fund will perform in the future.</span> |
| Performance Information Illustrates Variability of Returns [Text] | <span style="color:#000000;font-family:Times New Roman;font-size:9pt;">When </span><span style="color:#000000;font-family:Times New Roman;font-size:9pt;margin-left:0%;">such information is included, this section will provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance history from year to year and showing how the Fund’s average annual total returns compare with those of a broad measure of market performance and an additional index. </span> |
| Performance One Year or Less [Text] | <span style="color:#000000;font-family:Times New Roman;font-size:9pt;margin-left:0%;">Because the Fund is newly organized, the Fund has no reportable performance history.</span> |
| Performance Availability Website Address [Text] | <span style="color:#000000;font-family:Times New Roman;font-size:9pt;">harborcapital.com</span> |
| Performance Availability Phone [Text] | <span style="color:#000000;font-family:Times New Roman;font-size:9pt;">800-422-1050</span> |