S000012098 [Member] Investment Objectives and Goals - S000012098 [Member] |
Apr. 30, 2025 |
|---|---|
| Prospectus [Line Items] | |
| Risk/Return [Heading] | Summary of the Fund |
| Objective [Heading] | Investment Objective |
| Objective, Primary [Text Block] | Columbia U.S. Treasury Index Fund (the Fund) seeks total return that corresponds to the total return of the FTSE USBIG Treasury Index, before fees and expenses.
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