Shareholder Report, Average Annual Return (Details) LMA0100_ClearBridge Growth Fund_Class FI_TSR Annual {Class FI} |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Aug. 31, 2026 |
Aug. 31, 2026 |
Aug. 31, 2026 |
|
| Class FI | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class FI | ||
| Average Annual Return, Percent | 5.51% | 3.12% | 7.74% |
| Russell 3000 Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Russell 3000 Index | ||
| Average Annual Return, Percent | 20.10% | 11.80% | 14.84% |
| Russell Midcap Growth Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Russell Midcap Growth Index | ||
| Average Annual Return, Percent | (1.16%) | 4.27% | 12.06% |