Shareholder Report, Average Annual Return (Details) LMA0100_ClearBridge Growth Fund_Class C_TSR Annual {Class C} |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Aug. 31, 2026 |
Aug. 31, 2026 |
Aug. 31, 2026 |
|
| Class C | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class C (with sales charge) | ||
| Average Annual Return, Percent | 3.87% | 2.40% | 7.00% |
| Without Sales Load [Member] | Class C | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class C | ||
| Average Annual Return, Percent | 4.78% | 2.40% | 7.00% |
| 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% |