JPMorgan Mid Cap Equity Fund Average Annual Total Returns - R2 R5 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 MIDCAP INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)[Member] | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 10.60% | 8.67% | 11.01% |
| Class R2 | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 5.50% | 6.66% | 10.10% |
| Class R5 | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 6.18% | 7.35% | 10.83% |
| Class R6 | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 6.29% | 7.46% | 10.93% |
| Class R6 | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 4.77% | 6.34% | 9.25% |
| Class R6 | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 4.84% | 5.76% | 8.55% |