v3.25.4
S000006330 [Member] Expense Example - TCW Securitized Bond Fund
Oct. 31, 2025
USD ($)
I Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 55
Expense Example, with Redemption, 3 Years 173
Expense Example, with Redemption, 5 Years 302
Expense Example, with Redemption, 10 Years 677
N Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 86
Expense Example, with Redemption, 3 Years 268
Expense Example, with Redemption, 5 Years 466
Expense Example, with Redemption, 10 Years 1,037
Plan Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 82
Expense Example, with Redemption, 3 Years 255
Expense Example, with Redemption, 5 Years 444
Expense Example, with Redemption, 10 Years 990
Class I-3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 136
Expense Example, with Redemption, 3 Years 425
Expense Example, with Redemption, 5 Years 734
Expense Example, with Redemption, 10 Years $ 1,613