v3.26.3
John Hancock Short Duration Bond Fund Expense Example, No Redemption - John Hancock Short Duration Bond Fund Classes A C I and R6 [Member] - John Hancock Short Duration Bond Fund - Class C
May 31, 2026
USD ($)
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 139
Expense Example, No Redemption, 3 Years 436
Expense Example, No Redemption, 5 Years 754
Expense Example, No Redemption, 10 Years $ 1,451