v3.25.2
Investment Objectives and Goals - Harbor Alpha Layering ETF
Jul. 15, 2025
Prospectus [Line Items]  
Risk/Return [Heading] <span style="color:#FFFFFF;font-family:Times New Roman;font-size:18pt;">Harbor Alpha Layering 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 capital appreciation.