S000001146 [Member] Annual Fund Operating Expenses - TCW METWEST LOW DURATION BOND FUND |
Mar. 31, 2026 |
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|---|---|---|---|---|---|---|
| Prospectus [Line Items] | ||||||
| Fee Waiver or Reimbursement over Assets, Date of Termination | July 31, 2027 | |||||
| CLASS M | ||||||
| Prospectus [Line Items] | ||||||
| Management Fees (as a percentage of Assets) | 0.30% | |||||
| Distribution and Service (12b-1) Fees | 0.19% | |||||
| Other Expenses (as a percentage of Assets): | 0.16% | [1] | ||||
| Expenses (as a percentage of Assets) | 0.65% | |||||
| Fee Waiver or Reimbursement | 0.02% | [2] | ||||
| Net Expenses (as a percentage of Assets) | 0.63% | |||||
| Class I-3 | ||||||
| Prospectus [Line Items] | ||||||
| Management Fees (as a percentage of Assets) | 0.30% | |||||
| Distribution and Service (12b-1) Fees | 0.00% | |||||
| Other Expenses (as a percentage of Assets): | 30.95% | [1] | ||||
| Expenses (as a percentage of Assets) | 31.25% | |||||
| Fee Waiver or Reimbursement | 30.71% | [2] | ||||
| Net Expenses (as a percentage of Assets) | 0.54% | |||||
| CLASS I | ||||||
| Prospectus [Line Items] | ||||||
| Management Fees (as a percentage of Assets) | 0.30% | |||||
| Distribution and Service (12b-1) Fees | 0.00% | |||||
| Other Expenses (as a percentage of Assets): | 0.14% | [1] | ||||
| Expenses (as a percentage of Assets) | 0.44% | |||||
| Fee Waiver or Reimbursement | 0.03% | [2] | ||||
| Net Expenses (as a percentage of Assets) | 0.41% | |||||
| Administrative Class | ||||||
| Prospectus [Line Items] | ||||||
| Management Fees (as a percentage of Assets) | 0.30% | |||||
| Distribution and Service (12b-1) Fees | 0.19% | |||||
| Other Expenses (as a percentage of Assets): | 119.28% | [1] | ||||
| Expenses (as a percentage of Assets) | 119.77% | |||||
| Fee Waiver or Reimbursement | 118.96% | [2] | ||||
| Net Expenses (as a percentage of Assets) | 0.81% | |||||
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