v3.25.2
John Hancock Mid Cap Growth Fund Investment Objectives and Goals - Class NAV [Member] - John Hancock Mid Cap Growth Fund
Mar. 31, 2025
Prospectus [Line Items]  
Risk/Return [Heading] <span style="color:#000000;font-family:Arial Narrow;font-size:24pt;">John Hancock Mid Cap Growth Fund</span>
Objective [Heading] <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;font-weight:bold;">Investment objective</span>
Objective, Primary [Text Block] To seek long-term growth and capital appreciation.