Shareholder Report, Average Annual Return (Details)		12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2024	Oct. 31, 2024	Oct. 31, 2024
Columbia Strategic California Municipal Income Fund - Institutional 3 Class
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Institutional 3 Class
Average Annual Return, Percent	[1]	17.00%	0.81%	2.26%
Columbia Strategic California Municipal Income Fund - Institutional 2 Class
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Institutional 2 Class
Average Annual Return, Percent	[2]	16.90%	0.72%	2.24%
Columbia Strategic California Municipal Income Fund - Institutional Class
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Institutional Class
Average Annual Return, Percent		16.91%	0.74%	2.27%
Columbia Strategic California Municipal Income Fund - Class C
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Class C (including sales charges)
Average Annual Return, Percent		15.11%	0.03%	1.55%
Columbia Strategic California Municipal Income Fund - Advisor Class
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Advisor Class
Average Annual Return, Percent		16.91%	0.74%	2.27%
Columbia Strategic California Municipal Income Fund - Class A
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Class A (including sales charges)
Average Annual Return, Percent		13.20%	(0.09%)	1.72%
Without Sales Load [Member] | Columbia Strategic California Municipal Income Fund - Class C
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Class C (excluding sales charges)
Average Annual Return, Percent		16.11%	0.03%	1.55%
Without Sales Load [Member] | Columbia Strategic California Municipal Income Fund - Class A
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Class A (excluding sales charges)
Average Annual Return, Percent		16.69%	0.52%	2.03%
Bloomberg Municipal Bond Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Bloomberg Municipal Bond Index
Average Annual Return, Percent		9.70%	1.05%	2.30%
Bloomberg California Municipal Bond Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Bloomberg California Municipal Bond Index
Average Annual Return, Percent		9.32%	1.01%	2.27%

[1] The returns shown for periods prior to March 1, 2017 (including returns for the Life of the Fund, if shown, which are since Fund inception) include the returns of Class A. These returns are adjusted to reflect any higher class-related operating expenses of the newer share classes, as applicable. Please visit columbiathreadneedleus.com/investor/investment-products/mutual-funds/appended-performance for more information.

[2] The returns shown for periods prior to March 1, 2016 (including returns for the Life of the Fund, if shown, which are since Fund inception) include the returns of Class A. These returns are adjusted to reflect any higher class-related operating expenses of the newer share classes, as applicable. Please visit columbiathreadneedleus.com/investor/investment-products/mutual-funds/appended-performance for more information.