Shareholder Report, Average Annual Return (Details)	12 Months Ended	60 Months Ended	120 Months Ended
Shareholder Report, Average Annual Return (Details)	Jun. 30, 2026	Jun. 30, 2026	Jun. 30, 2026
C000133820 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	JPMorgan Growth Advantage Fund (Class R6 Shares)
Average Annual Return, Percent	14.70%	11.70%	19.20%
C000073572 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	JPMorgan Growth Advantage Fund (Class R5 Shares)
Average Annual Return, Percent	14.59%	11.60%	19.08%
C000187976 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	JPMorgan Growth Advantage Fund (Class R4 Shares)
Average Annual Return, Percent	14.42%	11.43%	18.91%
C000187975 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	JPMorgan Growth Advantage Fund (Class R3 Shares)
Average Annual Return, Percent	14.14%	11.14%	18.61%
C000190884 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	JPMorgan Growth Advantage Fund (Class R2 Shares)
Average Annual Return, Percent	13.86%	10.87%	18.31%
C000033247 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	JPMorgan Growth Advantage Fund (Class I Shares)
Average Annual Return, Percent	14.45%	11.44%	18.91%
C000034442 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	JPMorgan Growth Advantage Fund (Class C Shares)
Average Annual Return, Percent	12.57%	10.61%	18.14%
C000012318 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	JPMorgan Growth Advantage Fund (Class A Shares)
Average Annual Return, Percent	8.17%	9.96%	17.98%
Without Sales Load [Member] \| C000034442 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	JPMorgan Growth Advantage Fund (Class C Shares) - excluding sales charge
Average Annual Return, Percent	13.57%	10.61%	18.14%
Without Sales Load [Member] \| C000012318 [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	JPMorgan Growth Advantage Fund (Class A Shares) - excluding sales charge
Average Annual Return, Percent	14.15%	11.16%	18.62%
Russell 3000 Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Russell 3000 Index
Average Annual Return, Percent	22.82%	12.31%	15.06%
Russell 3000 Growth Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Russell 3000 Growth Index
Average Annual Return, Percent	18.24%	13.17%	18.13%