S000006325 [Member] Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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 |
Dec. 31, 2015 |
|
| TCW Concentrated Large Cap Growth Fund | I Class | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 30.92% | 44.33% | (36.37%) | 25.85% | 39.33% | 36.02% | 2.22% | 32.80% | (8.07%) | 12.19% |