v3.26.3
JPMorgan Small Cap Equity Fund Expense Example - R2 R3 R4 R5 R6 Shares [Member] - JPMorgan Small Cap Equity Fund
Jun. 30, 2026
USD ($)
Class R2  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 143
Expense Example, with Redemption, 3 Years 473
Expense Example, with Redemption, 5 Years 826
Expense Example, with Redemption, 10 Years 1,823
Class R3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 117
Expense Example, with Redemption, 3 Years 393
Expense Example, with Redemption, 5 Years 690
Expense Example, with Redemption, 10 Years 1,534
Class R4  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 92
Expense Example, with Redemption, 3 Years 311
Expense Example, with Redemption, 5 Years 547
Expense Example, with Redemption, 10 Years 1,226
Class R5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 77
Expense Example, with Redemption, 3 Years 259
Expense Example, with Redemption, 5 Years 457
Expense Example, with Redemption, 10 Years 1,029
Class R6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 66
Expense Example, with Redemption, 3 Years 228
Expense Example, with Redemption, 5 Years 403
Expense Example, with Redemption, 10 Years $ 910