v3.25.4
Harbor Transformative Technologies ETF Investment Objectives and Goals - Harbor Transformative Technologies ETF
Oct. 31, 2025
Prospectus [Line Items]  
Risk/Return [Heading] <span style="color:#FFFFFF;font-family:Times New Roman;font-size:15.5pt;">Harbor Transformative Technologies ETF </span><span style="color:#FFFFFF;font-family:Arial;font-size:16pt;font-weight:bold;">Fund Summary</span>
Objective [Heading] <span style="color:#004DD6;font-family:Arial Narrow;font-size:14pt;font-weight:bold;">Investment Objective</span>
Objective, Primary [Text Block] The Fund seeks long-term growth of capital.