S000006332 [Member] Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| TCW Relative Value Mid Cap Fund | I Class | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 15.61% | 17.35% | 15.98% | (11.76%) | 31.94% | 3.67% | 29.35% | (22.18%) | 19.70% | 25.85% |