v3.25.4
Harbor International Compounders ETF Annual Total Returns
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Harbor International Compounders ETF | NONE or SAME      
Prospectus [Line Items]      
Annual Return [Percent] 17.89% (0.37%) 21.07%