Shareholder Report, Average Annual Return (Details) |
12 Months Ended | 60 Months Ended | 120 Months Ended | ||||||||
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Apr. 30, 2025 |
Apr. 30, 2025 |
Apr. 30, 2025 |
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Columbia Short Duration Municipal Bond Fund - Class A | |||||||||||
Average Annual Return [Line Items] | |||||||||||
Line Graph and Table Measure Name | Class A (including sales charges) | ||||||||||
Average Annual Return, Percent | [1] | 2.03% | 1.02% | 0.92% | |||||||
Columbia Short Duration Municipal Bond Fund - Institutional Class | |||||||||||
Average Annual Return [Line Items] | |||||||||||
Line Graph and Table Measure Name | Institutional Class | ||||||||||
Average Annual Return, Percent | [1] | 3.31% | 1.47% | 1.28% | |||||||
Columbia Short Duration Municipal Bond Fund - Institutional 2 Class | |||||||||||
Average Annual Return [Line Items] | |||||||||||
Line Graph and Table Measure Name | Institutional 2 Class | ||||||||||
Average Annual Return, Percent | [1] | 3.36% | 1.52% | 1.34% | |||||||
Columbia Short Duration Municipal Bond Fund - Institutional 3 Class | |||||||||||
Average Annual Return [Line Items] | |||||||||||
Line Graph and Table Measure Name | Institutional 3 Class | ||||||||||
Average Annual Return, Percent | [1],[2] | 3.29% | 1.56% | 1.34% | |||||||
Columbia Short Duration Municipal Bond Fund - Class S | |||||||||||
Average Annual Return [Line Items] | |||||||||||
Line Graph and Table Measure Name | Class S | ||||||||||
Average Annual Return, Percent | [1],[3] | 3.30% | 1.47% | 1.28% | |||||||
Without Sales Load [Member] | Columbia Short Duration Municipal Bond Fund - Class A | |||||||||||
Average Annual Return [Line Items] | |||||||||||
Line Graph and Table Measure Name | Class A (excluding sales charges) | ||||||||||
Average Annual Return, Percent | [1] | 3.05% | 1.22% | 1.02% | |||||||
Bloomberg Municipal Bond Index [Member] | |||||||||||
Average Annual Return [Line Items] | |||||||||||
Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||||||||||
Average Annual Return, Percent | [4] | 1.66% | 1.17% | 2.10% | |||||||
Bloomberg 1-5 Year Municipal Bond Index [Member] | |||||||||||
Average Annual Return [Line Items] | |||||||||||
Line Graph and Table Measure Name | Bloomberg 1-5 Year Municipal Bond Index | ||||||||||
Average Annual Return, Percent | 3.28% | 1.29% | 1.41% | ||||||||
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