Shareholder Report, Average Annual Return (Details)
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12 Months Ended |
60 Months Ended |
120 Months Ended |
Jun. 30, 2026 |
Jun. 30, 2026 |
Jun. 30, 2026 |
| C000126248 [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Undiscovered Managers Behavioral Value Fund (Class R6 Shares)
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| Average Annual Return, Percent |
17.45%
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8.52%
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10.64%
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| C000177425 [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Undiscovered Managers Behavioral Value Fund (Class R5 Shares)
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| Average Annual Return, Percent |
17.34%
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8.42%
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10.53%
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| C000177424 [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Undiscovered Managers Behavioral Value Fund (Class R4 Shares)
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| Average Annual Return, Percent |
17.16%
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8.25%
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10.36%
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| C000177423 [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Undiscovered Managers Behavioral Value Fund (Class R3 Shares)
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| Average Annual Return, Percent |
16.88%
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7.99%
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10.09%
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| C000126247 [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Undiscovered Managers Behavioral Value Fund (Class R2 Shares)
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| Average Annual Return, Percent |
16.59%
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7.71%
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9.81%
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| C000011783 [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Undiscovered Managers Behavioral Value Fund (Class L Shares)
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| Average Annual Return, Percent |
17.34%
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8.42%
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10.53%
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| C000126246 [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Undiscovered Managers Behavioral Value Fund (Class I Shares)
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| Average Annual Return, Percent |
17.23%
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8.31%
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10.39%
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| C000011786 [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Undiscovered Managers Behavioral Value Fund (Class C Shares)
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| Average Annual Return, Percent |
15.37%
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7.50%
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9.68%
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| C000011784 [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Undiscovered Managers Behavioral Value Fund (Class A Shares)
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| Average Annual Return, Percent |
10.81%
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6.88%
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9.53%
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| Without Sales Load [Member] | C000011786 [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Undiscovered Managers Behavioral Value Fund (Class C Shares) - excluding sales charge
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| Average Annual Return, Percent |
16.37%
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7.50%
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9.68%
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| Without Sales Load [Member] | C000011784 [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Undiscovered Managers Behavioral Value Fund (Class A Shares) - excluding sales charge
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| Average Annual Return, Percent |
16.95%
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8.04%
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10.12%
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| Russell 3000 Index [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Russell 3000 Index
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| Average Annual Return, Percent |
22.82%
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12.31%
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15.06%
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| Russell 2000 Value Index [Member] |
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| Average Annual Return [Line Items] |
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| Line Graph and Table Measure Name |
Russell 2000 Value Index
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| Average Annual Return, Percent |
43.01%
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8.23%
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10.89%
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