v3.26.1
John Hancock Disciplined Global Long Short Fund Average Annual Total Returns - Class A C I R6 [Member]
12 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
MSCI World Index (reflects no deduction for fees, expenses, or taxes, except foreign withholding taxes on dividends)[Member]      
Prospectus [Line Items]      
Average Annual Return, Percent 21.09% 12.15% 12.17%
Class A      
Prospectus [Line Items]      
Average Annual Return, Percent 23.13% 13.03% 6.60%
Class A | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 19.90% 11.22% 5.67%
Class A | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 14.24% 9.79% 4.99%
Class C      
Prospectus [Line Items]      
Average Annual Return, Percent 27.65% 13.98% 7.04%
Class I      
Prospectus [Line Items]      
Average Annual Return, Percent 29.99% 14.47% 7.41%
Class R6      
Prospectus [Line Items]      
Average Annual Return, Percent 30.09% 14.28% 7.18%