v3.25.4
Harbor Disciplined Bond ETF Average Annual Total Returns
12 Months Ended 20 Months Ended 52 Months Ended
Oct. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
[1]
Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent   7.30% [1] 6.97% (0.34%)
NONE or SAME        
Prospectus [Line Items]        
Average Annual Return, Percent   7.31% 7.16%  
Performance Inception Date May 01, 2024      
NONE or SAME | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Percent   4.96% 4.90%  
NONE or SAME | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Percent   4.29% 4.50%  
[1] This index represents a broad measure of market performance.