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
May 31, 2015
May 31, 2025
May 31, 2016
May 31, 2017
May 31, 2018
May 31, 2019
May 31, 2020
May 31, 2021
May 31, 2022
May 31, 2023
May 31, 2024
May 31, 2025
Columbia Quality Income Fund - Class A                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class A (including sales charges)                    
Accumulated Value $ 9,703   $ 9,843 $ 10,095 $ 10,118 $ 10,737 $ 11,038 $ 11,850 $ 10,577 $ 9,753 $ 9,702 $ 10,557
Columbia Quality Income Fund - Class C                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class C (including sales charges)                    
Accumulated Value 10,000   10,068 10,249 10,195 10,719 10,958 11,674 10,339 9,465 9,345 10,093
Columbia Quality Income Fund - Institutional Class                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Institutional Class                    
Accumulated Value 10,000   10,151 10,457 10,487 11,159 11,521 12,389 11,089 10,251 10,223 11,151
Columbia Quality Income Fund - Institutional 2 Class                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Institutional 2 Class                    
Accumulated Value 10,000   10,182 10,477 10,538 11,204 11,579 12,462 11,164 10,330 10,312 11,258
Columbia Quality Income Fund - Institutional 3 Class                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Institutional 3 Class                    
Accumulated Value 10,000   10,184 10,506 10,551 11,245 11,628 12,517 11,218 10,386 10,371 11,330
Bloomberg U.S. Aggregate Bond Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Bloomberg U.S. Aggregate Bond Index                    
Accumulated Value 10,000   10,299 10,462 10,423 11,090 12,134 12,085 11,091 10,854 10,995 11,596
Bloomberg U.S. Mortgage-Backed Securities Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Bloomberg U.S. Mortgage-Backed Securities Index                    
Accumulated Value $ 10,000   $ 10,271 $ 10,390 $ 10,359 $ 10,929 $ 11,643 $ 11,588 $ 10,709 $ 10,422 $ 10,474 $ 11,091