Shareholder Report, Average Annual Return (Details) |
12 Months Ended | 60 Months Ended | 120 Months Ended | ||||||
---|---|---|---|---|---|---|---|---|---|
Apr. 30, 2025 |
Apr. 30, 2025 |
Apr. 30, 2025 |
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Columbia California Intermediate 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 | (1.94%) | 0.39% | 1.21% | ||||||
Columbia California Intermediate Municipal Bond Fund - Institutional Class | |||||||||
Average Annual Return [Line Items] | |||||||||
Line Graph and Table Measure Name | Institutional Class | ||||||||
Average Annual Return, Percent | 1.22% | 1.27% | 1.78% | ||||||
Columbia California Intermediate Municipal Bond Fund - Institutional 2 Class | |||||||||
Average Annual Return [Line Items] | |||||||||
Line Graph and Table Measure Name | Institutional 2 Class | ||||||||
Average Annual Return, Percent | 1.23% | 1.28% | 1.82% | ||||||
Columbia California Intermediate Municipal Bond Fund - Institutional 3 Class | |||||||||
Average Annual Return [Line Items] | |||||||||
Line Graph and Table Measure Name | [1] | Institutional 3 Class | |||||||
Average Annual Return, Percent | [1] | 1.28% | 1.33% | 1.85% | |||||
Columbia California Intermediate Municipal Bond Fund - Class S | |||||||||
Average Annual Return [Line Items] | |||||||||
Line Graph and Table Measure Name | [2] | Class S | |||||||
Average Annual Return, Percent | [2] | 1.22% | 1.27% | 1.78% | |||||
Without Sales Load [Member] | Columbia California Intermediate 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 | 1.08% | 1.00% | 1.52% | ||||||
Bloomberg Municipal Bond Index [Member] | |||||||||
Average Annual Return [Line Items] | |||||||||
Line Graph and Table Measure Name | [3] | Bloomberg Municipal Bond Index | |||||||
Average Annual Return, Percent | [3] | 1.66% | 1.17% | 2.10% | |||||
Bloomberg California 3-15 Year Blend Municipal Bond Index [Member] | |||||||||
Average Annual Return [Line Items] | |||||||||
Line Graph and Table Measure Name | Bloomberg California 3-15 Year Blend Municipal Bond Index | ||||||||
Average Annual Return, Percent | 1.50% | 1.03% | 1.88% | ||||||
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