v3.25.2
Shareholder Report, Line Graph (Details) - USD ($)
12 Months Ended 24 Months Ended 36 Months Ended 48 Months Ended 60 Months Ended 72 Months Ended 84 Months Ended 96 Months Ended 108 Months Ended 120 Months Ended 132 Months Ended
Apr. 30, 2025
Apr. 30, 2015
Apr. 30, 2016
Apr. 30, 2017
Apr. 30, 2018
Apr. 30, 2019
Apr. 30, 2020
Apr. 30, 2021
Apr. 30, 2022
Apr. 30, 2023
Apr. 30, 2024
Apr. 30, 2025
Columbia Short Duration Municipal Bond Fund - Class A                        
Account Value [Line Items]                        
Line Graph and Table Measure Name Class A (including sales charges)                      
Accumulated Value   $ 9,896 $ 9,969 $ 9,994 $ 10,010 $ 10,249 $ 10,314 $ 10,623 $ 10,231 $ 10,402 $ 10,633 $ 10,958
Columbia Short Duration Municipal Bond Fund - Institutional Class                        
Account Value [Line Items]                        
Line Graph and Table Measure Name Institutional Class                      
Accumulated Value   10,000 10,099 10,150 10,191 10,461 10,553 10,896 10,521 10,723 10,989 11,353
Columbia Short Duration Municipal Bond Fund - Institutional 2 Class                        
Account Value [Line Items]                        
Line Graph and Table Measure Name Institutional 2 Class                      
Accumulated Value   10,000 10,110 10,171 10,228 10,503 10,591 10,950 10,577 10,786 11,048 11,420
Columbia Short Duration Municipal Bond Fund - Institutional 3 Class                        
Account Value [Line Items]                        
Line Graph and Table Measure Name Institutional 3 Class                      
Accumulated Value   10,000 10,099 10,152 10,194 10,484 10,576 10,940 10,573 10,787 11,065 11,429
Columbia Short Duration Municipal Bond Fund - Class S                        
Account Value [Line Items]                        
Line Graph and Table Measure Name Class S                      
Accumulated Value   10,000 10,099 10,150 10,191 10,461 10,553 10,896 10,521 10,723 10,989 11,352
Bloomberg Municipal Bond Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name Bloomberg Municipal Bond Index                      
Accumulated Value   10,000 10,529 10,545 10,709 11,368 11,614 12,513 11,527 11,858 12,105 12,306
Bloomberg 1-5 Year Municipal Bond Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name Bloomberg 1-5 Year Municipal Bond Index                      
Accumulated Value   $ 10,000 $ 10,180 $ 10,245 $ 10,238 $ 10,576 $ 10,786 $ 11,156 $ 10,687 $ 10,909 $ 11,135 $ 11,500