v3.25.2
John Hancock High Yield Fund Expense Example - John Hancock High Yield Fund Classes A C I and R6 [Member] - John Hancock High Yield Fund
May 31, 2025
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 489
Expense Example, with Redemption, 3 Years 681
Expense Example, with Redemption, 5 Years 888
Expense Example, with Redemption, 10 Years 1,485
Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 269
Expense Example, with Redemption, 3 Years 526
Expense Example, with Redemption, 5 Years 906
Expense Example, with Redemption, 10 Years 1,776
Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 67
Expense Example, with Redemption, 3 Years 213
Expense Example, with Redemption, 5 Years 372
Expense Example, with Redemption, 10 Years 834
Class R6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 57
Expense Example, with Redemption, 3 Years 182
Expense Example, with Redemption, 5 Years 317
Expense Example, with Redemption, 10 Years $ 713