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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Document Type dei_DocumentType Other
Document Period End Date dei_DocumentPeriodEndDate Feb. 28, 2012
Registrant Name dei_EntityRegistrantName COLUMBIA FUNDS SERIES TRUST
Central Index Key dei_EntityCentralIndexKey 0001097519
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Jan. 30, 2013
Document Effective Date dei_DocumentEffectiveDate Jan. 30, 2013
Prospectus Date rr_ProspectusDate Jan. 30, 2013
Supplement Text Block columbia_SupplementTextBlock

COLUMBIA FUNDS SERIES TRUST

Columbia Overseas Value Fund
(the "Fund")

Supplement dated January 30, 2013 to the
Fund's prospectuses dated July 1, 2012, as supplemented
(Columbia Overseas Value Fund)
  
Risk/Return: rr_RiskReturnAbstract  
Strategy Supplement - Text Block columbia_SupplementTextBlock_01

Effective immediately, the second paragraph of the section of the prospectuses for the Fund entitled "Principal Investment Strategies" is deleted in its entirety and replaced with the following disclosure:
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund may invest in currency forwards and futures for both hedging and non-hedging purposes, including, for example, to seek to enhance returns or, in certain unusual circumstances, when holding a derivative is deemed preferable to holding the underlying asset.