Shareholder Report, Average Annual Return (Details)	12 Months Ended	60 Months Ended	120 Months Ended
Shareholder Report, Average Annual Return (Details)	May 31, 2025	May 31, 2025	May 31, 2025
Columbia Quality Income Fund - Class A
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class A (including sales charges)
Average Annual Return, Percent	5.54%	(1.49%)	0.54%
Columbia Quality Income Fund - Class C
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class C (including sales charges)
Average Annual Return, Percent	6.99%	(1.63%)	0.09%
Columbia Quality Income Fund - Institutional Class
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Institutional Class
Average Annual Return, Percent	9.08%	(0.65%)	1.10%
Columbia Quality Income Fund - Institutional 2 Class
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Institutional 2 Class
Average Annual Return, Percent	9.18%	(0.56%)	1.19%
Columbia Quality Income Fund - Institutional 3 Class
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Institutional 3 Class
Average Annual Return, Percent	9.25%	(0.52%)	1.26%
Without Sales Load [Member] \| Columbia Quality Income Fund - Class A
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class A (excluding sales charges)
Average Annual Return, Percent	8.81%	(0.89%)	0.85%
Without Sales Load [Member] \| Columbia Quality Income Fund - Class C
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class C (excluding sales charges)
Average Annual Return, Percent	7.99%	(1.63%)	0.09%
Bloomberg U.S. Aggregate Bond Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Bloomberg U.S. Aggregate Bond Index
Average Annual Return, Percent	5.46%	(0.90%)	1.49%
Bloomberg U.S. Mortgage-Backed Securities Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Bloomberg U.S. Mortgage-Backed Securities Index
Average Annual Return, Percent	5.88%	(0.97%)	1.04%