John Hancock High Yield Municipal Bond Fund Annual Fund Operating Expenses - Classes A C I and R6 [Member] - John Hancock High Yield Municipal Bond Fund |
May 31, 2025 |
|||||||
|---|---|---|---|---|---|---|---|---|
| Prospectus [Line Items] | ||||||||
| Fee Waiver or Reimbursement over Assets, Date of Termination | <span style="font-family:Arial Narrow;font-size:8pt;">September 30, 2026</span><span style="font-family:Arial Narrow;font-size:8pt;">July 31, 2027</span><span style="font-family:Arial Narrow;font-size:8pt;">September 30, 2026</span> | |||||||
| Class A | ||||||||
| Prospectus [Line Items] | ||||||||
| Management Fees (as a percentage of Assets) | 0.51% | |||||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||||
| Component1 Other Expenses | 0.18% | |||||||
| Component2 Other Expenses | 0.21% | [1] | ||||||
| Other Expenses (as a percentage of Assets): | 0.39% | |||||||
| Expenses (as a percentage of Assets) | 1.15% | |||||||
| Fee Waiver or Reimbursement | (0.29%) | [2],[3] | ||||||
| Net Expenses (as a percentage of Assets) | 0.86% | |||||||
| Class C | ||||||||
| Prospectus [Line Items] | ||||||||
| Management Fees (as a percentage of Assets) | 0.51% | |||||||
| Distribution and Service (12b-1) Fees | 1.00% | |||||||
| Component1 Other Expenses | 0.18% | |||||||
| Component2 Other Expenses | 0.21% | [1] | ||||||
| Other Expenses (as a percentage of Assets): | 0.39% | |||||||
| Expenses (as a percentage of Assets) | 1.90% | |||||||
| Fee Waiver or Reimbursement | (0.29%) | [2],[3] | ||||||
| Net Expenses (as a percentage of Assets) | 1.61% | |||||||
| Class I | ||||||||
| Prospectus [Line Items] | ||||||||
| Management Fees (as a percentage of Assets) | 0.51% | |||||||
| Distribution and Service (12b-1) Fees | 0.00% | |||||||
| Component1 Other Expenses | 0.18% | |||||||
| Component2 Other Expenses | 0.21% | [1] | ||||||
| Other Expenses (as a percentage of Assets): | 0.39% | |||||||
| Expenses (as a percentage of Assets) | 0.90% | |||||||
| Fee Waiver or Reimbursement | (0.19%) | [2] | ||||||
| Net Expenses (as a percentage of Assets) | 0.71% | |||||||
| Class R6 | ||||||||
| Prospectus [Line Items] | ||||||||
| Management Fees (as a percentage of Assets) | 0.51% | |||||||
| Distribution and Service (12b-1) Fees | 0.00% | |||||||
| Component1 Other Expenses | 0.18% | |||||||
| Component2 Other Expenses | 0.13% | |||||||
| Other Expenses (as a percentage of Assets): | 0.31% | |||||||
| Expenses (as a percentage of Assets) | 0.82% | |||||||
| Fee Waiver or Reimbursement | (0.19%) | [2] | ||||||
| Net Expenses (as a percentage of Assets) | 0.63% | |||||||
| ||||||||