Shareholder Fees (dei_DocumentInformationDocumentAxis)	0 Months Ended
	Mar. 01, 2013
(Columbia California Tax-Exempt Fund) | Class A Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	4.75%
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[1]
(Columbia California Tax-Exempt Fund) | Class B Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	5.00%	[2]
(Columbia California Tax-Exempt Fund) | Class C Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[3]
(Columbia California Tax-Exempt Fund) | Class R4 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia California Tax-Exempt Fund) | Class Z Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Connecticut Intermediate Municipal Bond Fund) | Class A Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	3.25%
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[1]
(Columbia Connecticut Intermediate Municipal Bond Fund) | Class B Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	3.00%	[2]
(Columbia Connecticut Intermediate Municipal Bond Fund) | Class C Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[3]
(Columbia Connecticut Intermediate Municipal Bond Fund) | Class R4 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Connecticut Intermediate Municipal Bond Fund) | Class T Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	4.75%
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[1]
(Columbia Connecticut Intermediate Municipal Bond Fund) | Class Z Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Connecticut Tax-Exempt Fund) | Class A Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	4.75%
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[1]
(Columbia Connecticut Tax-Exempt Fund) | Class B Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	5.00%	[2]
(Columbia Connecticut Tax-Exempt Fund) | Class C Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[3]
(Columbia Connecticut Tax-Exempt Fund) | Class Z Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Intermediate Municipal Bond Fund) | Class A Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	3.25%
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[1]
(Columbia Intermediate Municipal Bond Fund) | Class B Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	3.00%	[2]
(Columbia Intermediate Municipal Bond Fund) | Class C Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[3]
(Columbia Intermediate Municipal Bond Fund) | Class R4 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Intermediate Municipal Bond Fund) | Class R5 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Intermediate Municipal Bond Fund) | Class T Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	4.75%
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[1]
(Columbia Intermediate Municipal Bond Fund) | Class Z Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia International Bond Fund) | Class A Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	4.75%
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[1]
(Columbia International Bond Fund) | Class C Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[3]
(Columbia International Bond Fund) | Class I Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia International Bond Fund) | Class W Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia International Bond Fund) | Class Z Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Massachusetts Intermediate Municipal Bond Fund) | Class A Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	3.25%
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[1]
(Columbia Massachusetts Intermediate Municipal Bond Fund) | Class B Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	3.00%	[2]
(Columbia Massachusetts Intermediate Municipal Bond Fund) | Class C Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[3]
(Columbia Massachusetts Intermediate Municipal Bond Fund) | Class R4 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Massachusetts Intermediate Municipal Bond Fund) | Class T Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	4.75%
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[1]
(Columbia Massachusetts Intermediate Municipal Bond Fund) | Class Z Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Massachusetts Tax-Exempt Fund) | Class A Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	4.75%
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[1]
(Columbia Massachusetts Tax-Exempt Fund) | Class B Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	5.00%	[2]
(Columbia Massachusetts Tax-Exempt Fund) | Class C Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[3]
(Columbia Massachusetts Tax-Exempt Fund) | Class Z Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia New York Intermediate Municipal Bond Fund) | Class A Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	3.25%
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[1]
(Columbia New York Intermediate Municipal Bond Fund) | Class B Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	3.00%	[2]
(Columbia New York Intermediate Municipal Bond Fund) | Class C Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[3]
(Columbia New York Intermediate Municipal Bond Fund) | Class R4 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia New York Intermediate Municipal Bond Fund) | Class T Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	4.75%
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[1]
(Columbia New York Intermediate Municipal Bond Fund) | Class Z Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia New York Tax-Exempt Fund) | Class A Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	4.75%
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[1]
(Columbia New York Tax-Exempt Fund) | Class B Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	5.00%	[2]
(Columbia New York Tax-Exempt Fund) | Class C Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[3]
(Columbia New York Tax-Exempt Fund) | Class R4 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia New York Tax-Exempt Fund) | Class R5 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia New York Tax-Exempt Fund) | Class Z Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Strategic Income Fund) | Class A Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	4.75%
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[1]
(Columbia Strategic Income Fund) | Class B Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	5.00%	[2]
(Columbia Strategic Income Fund) | Class C Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	1.00%	[3]
(Columbia Strategic Income Fund) | Class K Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Strategic Income Fund) | Class R Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Strategic Income Fund) | Class R4 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Strategic Income Fund) | Class R5 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Strategic Income Fund) | Class W Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Strategic Income Fund) | Class Z Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Emerging Markets Fund) | Class R4 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Global Dividend Opportunity Fund) | Class R4 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Greater China Fund) | Class R4 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia High Yield Municipal Fund) | Class R4 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Oregon Intermediate Municipal Bond Fund) | Class R4 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Pacific/Asia Fund) | Class R4 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none
(Columbia Tax-Exempt Fund) | Class R4 Shares
Shareholder Fees:
Maximum sales charge (load) imposed on purchases, as a % of offering price	none
Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or current net asset value	none

[1] Contingent deferred sales charges (CDSC) on certain investments of between $1 million and $50 million redeemed within 18 months of purchase, charged as follows: 1.00% CDSC if redeemed within 12 months of purchase, and 0.50% CDSC if redeemed more than 12, but less than 18, months of purchase, with certain limited exceptions.

[2] This charge decreases over time.

[3] This charge applies to investors who buy Class C shares and redeem them within one year of purchase, with certain limited exceptions.