v3.26.1
S000010780 [Member] Expense Example, No Redemption - Columbia California Intermediate Municipal Bond Fund
Apr. 30, 2026
USD ($)
Columbia California Intermediate Municipal Bond Fund Class A  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 372
Expense Example, No Redemption, 3 Years 549
Expense Example, No Redemption, 5 Years 741
Expense Example, No Redemption, 10 Years 1,296
Columbia California Intermediate Municipal Bond Fund Institutional Class  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 49
Expense Example, No Redemption, 3 Years 178
Expense Example, No Redemption, 5 Years 318
Expense Example, No Redemption, 10 Years 727
Columbia California Intermediate Municipal Bond Fund Institutional 2 Class  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 48
Expense Example, No Redemption, 3 Years 175
Expense Example, No Redemption, 5 Years 313
Expense Example, No Redemption, 10 Years 715
Columbia California Intermediate Municipal Bond Fund Institutional 3 Class  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 43
Expense Example, No Redemption, 3 Years 159
Expense Example, No Redemption, 5 Years 285
Expense Example, No Redemption, 10 Years 654
Columbia California Intermediate Municipal Bond Fund - Class S  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 49
Expense Example, No Redemption, 3 Years 178
Expense Example, No Redemption, 5 Years 318
Expense Example, No Redemption, 10 Years $ 727