v3.26.1
John Hancock International Growth Fund Expense Example - Class A C I R2 R4 R6 [Member] - John Hancock International Growth Fund
Mar. 31, 2026
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 626
Expense Example, with Redemption, 3 Years 894
Expense Example, with Redemption, 5 Years 1,181
Expense Example, with Redemption, 10 Years 1,999
Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 303
Expense Example, with Redemption, 3 Years 630
Expense Example, with Redemption, 5 Years 1,082
Expense Example, with Redemption, 10 Years 2,157
Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 102
Expense Example, with Redemption, 3 Years 321
Expense Example, with Redemption, 5 Years 557
Expense Example, with Redemption, 10 Years 1,235
Class R2  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 142
Expense Example, with Redemption, 3 Years 442
Expense Example, with Redemption, 5 Years 765
Expense Example, with Redemption, 10 Years 1,679
Class R4  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 116
Expense Example, with Redemption, 3 Years 386
Expense Example, with Redemption, 5 Years 676
Expense Example, with Redemption, 10 Years 1,502
Class R6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 91
Expense Example, with Redemption, 3 Years 286
Expense Example, with Redemption, 5 Years 497
Expense Example, with Redemption, 10 Years $ 1,107