Shareholder Report, Line Graph (Details) 207777_ClearBridge Large Cap Growth Select ETF _Single Class_TSR Annual {Single Class} - USD ($) |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2023 |
Mar. 31, 2022 |
Mar. 31, 2021 |
Mar. 31, 2020 |
Mar. 31, 2019 |
Mar. 31, 2018 |
May 22, 2017 |
Mar. 31, 2026 |
|
| ClearBridge Large Cap Growth Select ETF | ||||||||||
| Account Value [Line Items] | ||||||||||
| Line Graph and Table Measure Name | ClearBridge Large Cap Growth Select ETF (NAV) | |||||||||
| Accumulated Value | $ 29,610 | $ 28,504 | $ 20,193 | $ 22,304 | $ 20,638 | $ 13,236 | $ 13,509 | $ 11,831 | $ 10,000 | $ 32,019 |
| Russell 3000 Index [Member] | ||||||||||
| Account Value [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Russell 3000 Index | |||||||||
| Accumulated Value | 25,402 | 23,692 | 18,324 | 20,044 | 17,908 | 11,019 | 12,125 | 11,148 | 10,000 | $ 29,996 |
| Russell 1000 Growth Index [Member] | ||||||||||
| Account Value [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Russell 1000 Growth Index | |||||||||
| Accumulated Value | $ 32,827 | $ 30,462 | $ 21,916 | $ 24,597 | $ 21,393 | $ 13,145 | $ 13,027 | $ 11,554 | $ 10,000 | $ 39,003 |