Shareholder Report, Average Annual Return (Details) 74200009900_Franklin Small-Mid Cap Growth Fund_Advisor Class_TSR Annual {Advisor Class} |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Apr. 30, 2026 |
Apr. 30, 2026 |
Apr. 30, 2026 |
|
| Advisor Class | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Advisor Class | ||
| Average Annual Return, Percent | 14.69% | 0.75% | 10.89% |
| Russell 3000 Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Russell 3000 Index | ||
| Average Annual Return, Percent | 31.01% | 11.91% | 14.76% |
| Russell Midcap Growth Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Russell Midcap Growth Index | ||
| Average Annual Return, Percent | 12.86% | 5.54% | 12.40% |
| S&P 500 Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | S&P 500 Index | ||
| Average Annual Return, Percent | 31.05% | 13.14% | 15.26% |