v3.26.3
Expense Example - PUTNAM SUSTAINABLE LEADERS FUND
Jun. 30, 2026
USD ($)
Class A Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 653
Expense Example, with Redemption, 3 Years 819
Expense Example, with Redemption, 5 Years 999
Expense Example, with Redemption, 10 Years 1,520
Class C Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 259
Expense Example, with Redemption, 3 Years 493
Expense Example, with Redemption, 5 Years 851
Expense Example, with Redemption, 10 Years 1,655
Class R Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 108
Expense Example, with Redemption, 3 Years 337
Expense Example, with Redemption, 5 Years 584
Expense Example, with Redemption, 10 Years 1,293
Class Y Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 57
Expense Example, with Redemption, 3 Years 179
Expense Example, with Redemption, 5 Years 312
Expense Example, with Redemption, 10 Years 701
Class R6 Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 49
Expense Example, with Redemption, 3 Years 154
Expense Example, with Redemption, 5 Years 269
Expense Example, with Redemption, 10 Years $ 604