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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Document Type dei_DocumentType 485BPOS
Document Period End Date dei_DocumentPeriodEndDate Nov. 27, 2013
Registrant Name dei_EntityRegistrantName COLUMBIA FUNDS SERIES TRUST
Central Index Key dei_EntityCentralIndexKey 0001097519
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Nov. 27, 2013
Document Effective Date dei_DocumentEffectiveDate Dec. 01, 2013
Prospectus Date rr_ProspectusDate Dec. 01, 2013