Document and Entity Information	12 Months Ended
	Mar. 01, 2013
Risk/Return:
Document Type	485BPOS
Document Period End Date	Feb. 20, 2013
Registrant Name	EAGLE SERIES TRUST
Central Index Key	0000897111
Amendment Flag	false
Document Creation Date	Feb. 20, 2013
Document Effective Date	Feb. 27, 2013
Prospectus Date	Mar. 01, 2013