v3.26.1
S000001146 [Member] Expense Example - TCW METWEST LOW DURATION BOND FUND
Mar. 31, 2026
USD ($)
CLASS M  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 64
Expense Example, with Redemption, 3 Years 206
Expense Example, with Redemption, 5 Years 360
Expense Example, with Redemption, 10 Years 809
Class I-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 55
Expense Example, with Redemption, 3 Years 4,983
Expense Example, with Redemption, 5 Years 7,663
Expense Example, with Redemption, 10 Years 10,161
CLASS I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 42
Expense Example, with Redemption, 3 Years 138
Expense Example, with Redemption, 5 Years 243
Expense Example, with Redemption, 10 Years 552
Administrative Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 83
Expense Example, with Redemption, 3 Years 10,419
Expense Example, with Redemption, 5 Years 10,419
Expense Example, with Redemption, 10 Years $ 10,419