v3.26.1
John Hancock Dynamic Municipal Bond ETF Average Annual Total Returns
12 Months Ended 26 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Dec. 31, 2025
Bloomberg Municipal Bond Index (reflects no deduction for fees, expenses, or taxes)[Member]      
Prospectus [Line Items]      
Average Annual Return, Percent   4.25% 6.51%
None or SAME      
Prospectus [Line Items]      
Average Annual Return, Percent   4.95% 7.99%
Performance Inception Date Nov. 01, 2023    
None or SAME | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent   4.93% 7.21%
None or SAME | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent   4.74% 6.74%