JPMorgan SMID Cap Equity Fund Average Annual Total Returns - R3 R4 R6 Shares [Member] |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| RUSSELL 3000 INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 17.15% | 13.15% | 14.29% |
| RUSSELL 2500 INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 11.91% | 7.26% | 10.40% |
| Class R3 | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | (2.96%) | 3.77% | 6.71% |
| Class R6 | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | (2.47%) | 4.30% | 7.25% |
| Class R6 | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | (4.09%) | 2.11% | 4.93% |
| Class R6 | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | (0.39%) | 2.91% | 5.28% |