S000006334 [Member] Annual Fund Operating Expenses - TCW Core Fixed Income Fund |
Oct. 31, 2025 |
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|---|---|---|---|---|---|---|
| Prospectus [Line Items] | ||||||
| Fee Waiver or Reimbursement over Assets, Date of Termination | March 1, 2027 | |||||
| I Class | ||||||
| Prospectus [Line Items] | ||||||
| Management Fees (as a percentage of Assets) | 0.40% | |||||
| Distribution and Service (12b-1) Fees | 0.00% | |||||
| Other Expenses (as a percentage of Assets): | 0.17% | [1] | ||||
| Expenses (as a percentage of Assets) | 0.57% | |||||
| Fee Waiver or Reimbursement | 0.08% | [2] | ||||
| Net Expenses (as a percentage of Assets) | 0.49% | [2] | ||||
| N Class | ||||||
| Prospectus [Line Items] | ||||||
| Management Fees (as a percentage of Assets) | 0.40% | |||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||
| Other Expenses (as a percentage of Assets): | 0.21% | [1] | ||||
| Expenses (as a percentage of Assets) | 0.86% | |||||
| Fee Waiver or Reimbursement | 0.26% | [2] | ||||
| Net Expenses (as a percentage of Assets) | 0.60% | [2] | ||||
| Plan Class | ||||||
| Prospectus [Line Items] | ||||||
| Management Fees (as a percentage of Assets) | 0.40% | |||||
| Distribution and Service (12b-1) Fees | 0.00% | |||||
| Other Expenses (as a percentage of Assets): | 0.13% | [1] | ||||
| Expenses (as a percentage of Assets) | 0.53% | |||||
| Fee Waiver or Reimbursement | 0.09% | [2] | ||||
| Net Expenses (as a percentage of Assets) | 0.44% | [2] | ||||
| Class I-3 | ||||||
| Prospectus [Line Items] | ||||||
| Management Fees (as a percentage of Assets) | 0.40% | |||||
| Distribution and Service (12b-1) Fees | 0.00% | |||||
| Other Expenses (as a percentage of Assets): | 0.97% | [1] | ||||
| Expenses (as a percentage of Assets) | 1.37% | |||||
| Fee Waiver or Reimbursement | 0.81% | [2] | ||||
| Net Expenses (as a percentage of Assets) | 0.56% | [2] | ||||
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