Shareholder Report, Line Graph (Details) 1014053_BrandywineGLOBAL-Dynamic US Large Cap Value 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 |
Mar. 31, 2017 |
Mar. 31, 2016 |
Mar. 31, 2026 |
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| BrandywineGLOBAL-Dynamic US Large Cap Value ETF | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | BrandywineGLOBAL-Dynamic US Large Cap Value ETF (NAV) | ||||||||||
| Accumulated Value | $ 24,664 | $ 24,272 | $ 20,163 | $ 21,128 | $ 19,491 | $ 11,473 | $ 13,656 | $ 12,995 | $ 11,239 | $ 10,000 | $ 27,486 |
| Russell 3000 Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Russell 3000 Index | ||||||||||
| Accumulated Value | 30,620 | 28,558 | 22,088 | 24,161 | 21,587 | 13,282 | 14,616 | 13,438 | 11,807 | 10,000 | $ 36,157 |
| Russell 1000 Value Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Russell 1000 Value Index | ||||||||||
| Accumulated Value | 23,593 | 22,013 | 18,303 | 19,454 | 17,421 | 11,161 | 13,474 | 12,751 | 11,922 | 10,000 | $ 27,337 |
| S&P 500 Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||||
| Accumulated Value | $ 31,913 | $ 29,480 | $ 22,698 | $ 24,599 | $ 21,271 | $ 13,605 | $ 14,625 | $ 13,357 | $ 11,717 | $ 10,000 | $ 37,594 |