v3.25.3
S000003848 [Member] Expense Example - Putnam Large Cap Growth Fund
Jul. 31, 2025
USD ($)
Class A Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 664
Expense Example, with Redemption, 3 Years 854
Expense Example, with Redemption, 5 Years 1,060
Expense Example, with Redemption, 10 Years 1,652
Class C Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 272
Expense Example, with Redemption, 3 Years 532
Expense Example, with Redemption, 5 Years 917
Expense Example, with Redemption, 10 Years 1,795
Class R Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 121
Expense Example, with Redemption, 3 Years 378
Expense Example, with Redemption, 5 Years 655
Expense Example, with Redemption, 10 Years 1,445
Class Y Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 69
Expense Example, with Redemption, 3 Years 217
Expense Example, with Redemption, 5 Years 378
Expense Example, with Redemption, 10 Years 846
Class R5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 72
Expense Example, with Redemption, 3 Years 225
Expense Example, with Redemption, 5 Years 391
Expense Example, with Redemption, 10 Years 871
Class R6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 61
Expense Example, with Redemption, 3 Years 192
Expense Example, with Redemption, 5 Years 335
Expense Example, with Redemption, 10 Years $ 750