v3.25.2
John Hancock Preferred Income ETF Average Annual Total Returns
12 Months Ended 37 Months Ended 40 Months Ended 45 Months Ended
Apr. 30, 2025
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)[Member]          
Prospectus [Line Items]          
Average Annual Return, Percent   1.25% (2.40%) (2.38%) (1.44%)
ICE BofA U.S. All Capital Securities Index (reflects no deduction for fees, expenses, or taxes)[Member]          
Prospectus [Line Items]          
Average Annual Return, Percent   9.61% 1.01%    
N/A          
Prospectus [Line Items]          
Average Annual Return, Percent   10.97% 2.73%    
Performance Inception Date Dec. 15, 2021        
N/A | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Percent   8.49% 0.46%    
N/A | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Percent   6.79% 1.24%