v3.26.1
John Hancock International Growth Fund Expense Example, No Redemption - Class A C I R2 R4 R6 [Member] - John Hancock International Growth Fund - Class C
Mar. 31, 2026
USD ($)
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 203
Expense Example, No Redemption, 3 Years 630
Expense Example, No Redemption, 5 Years 1,082
Expense Example, No Redemption, 10 Years $ 2,157