v3.26.3
Expense Example, No Redemption - Class A C I R6 [Member] - John Hancock California Municipal Bond Fund - Class C
May 31, 2026
USD ($)
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 153
Expense Example, No Redemption, 3 Years 527
Expense Example, No Redemption, 5 Years 926
Expense Example, No Redemption, 10 Years $ 1,816