v3.26.1
Shareholder Report, Line Graph (Details) - USD ($)
 12 Months Ended 24 Months Ended 36 Months Ended 48 Months Ended 60 Months Ended 72 Months Ended 84 Months Ended 96 Months Ended 108 Months Ended 120 Months Ended
Jun. 30, 2016
Jun. 30, 2026
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2026
C000133820 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   JPMorgan Growth Advantage Fund (Class R6 Shares)                    
Accumulated Value $ 5,000,000   $ 6,253,333 $ 7,932,792 $ 8,740,270 $ 11,230,520 $ 16,652,464 $ 12,971,214 $ 16,345,894 $ 21,904,574 $ 25,250,457 $ 28,961,187
C000073572 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   JPMorgan Growth Advantage Fund (Class R5 Shares)                    
Accumulated Value 10,000   12,493 15,834 17,425 22,360 33,128 25,779 32,461 43,449 50,040 57,339
C000187976 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   JPMorgan Growth Advantage Fund (Class R4 Shares)                    
Accumulated Value 10,000   12,476 15,790 17,354 22,239 32,894 25,551 32,127 42,944 49,381 56,504
C000187975 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   JPMorgan Growth Advantage Fund (Class R3 Shares)                    
Accumulated Value 10,000   12,447 15,718 17,231 22,021 32,502 25,177 31,575 42,103 48,295 55,123
C000190884 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   JPMorgan Growth Advantage Fund (Class R2 Shares)                    
Accumulated Value 10,000   12,416 15,633 17,097 21,794 32,077 24,791 31,009 41,243 47,194 53,734
C000033247 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   JPMorgan Growth Advantage Fund (Class I Shares)                    
Accumulated Value 1,000,000   1,247,458 1,578,783 1,735,222 2,223,606 3,289,896 2,555,381 3,213,331 4,295,586 4,939,589 5,653,511
C000034442 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   JPMorgan Growth Advantage Fund (Class C Shares)                    
Accumulated Value 10,000   12,386 15,556 16,966 21,582 31,683 24,426 30,485 40,454 46,399 52,966
C000012318 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   JPMorgan Growth Advantage Fund (Class A Shares)                    
Accumulated Value 9,474   11,794 14,886 16,319 20,867 30,789 23,852 29,923 39,901 45,767 52,245
Russell 3000 C000133820 Index [Member]                        
Account Value [Line Items]                        
Accumulated Value 5,000,000   5,925,478 6,801,152 7,412,064 7,896,036 11,383,277 9,805,132 11,663,562 14,360,766 16,557,359 20,336,331
Russell 3000 C000033247 Index [Member]                        
Account Value [Line Items]                        
Accumulated Value 1,000,000   1,185,096 1,360,230 1,482,413 1,579,207 2,276,655 1,961,026 2,332,712 2,872,153 3,311,472 4,067,266
Russell 3000 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 3000 Index                    
Accumulated Value 10,000   11,851 13,602 14,824 15,792 22,767 19,610 23,327 28,722 33,115 40,673
Russell 3000 Growth C000133820 Index [Member]                        
Account Value [Line Items]                        
Accumulated Value 5,000,000   6,035,934 7,392,124 8,176,029 9,970,131 14,255,870 11,436,745 14,479,065 19,143,744 22,376,229 26,458,428
Russell 3000 Growth C000033247 Index [Member]                        
Account Value [Line Items]                        
Accumulated Value 1,000,000   1,207,187 1,478,425 1,635,206 1,994,026 2,851,174 2,287,349 2,895,813 3,828,749 4,475,246 5,291,686
Russell 3000 Growth Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 3000 Growth Index                    
Accumulated Value $ 10,000   $ 12,072 $ 14,784 $ 16,352 $ 19,940 $ 28,512 $ 22,873 $ 28,958 $ 38,287 $ 44,752 $ 52,917