Document and Entity Information	0 Months Ended
	Dec. 31, 2013
Risk/Return:
Document Type	485BPOS
Document Period End Date	Dec. 31, 2013
Registrant Name	ADVISORS SERIES TRUST
Central Index Key	0001027596
Amendment Flag	false
Document Creation Date	Apr. 25, 2014
Document Effective Date	Apr. 30, 2014
Prospectus Date	Apr. 30, 2014
Kellner Merger Fund | Class A
Risk/Return:
Trading Symbol	GAKAX
Kellner Merger Fund | Institutional Class
Risk/Return:
Trading Symbol	GAKIX
Kellner Long/Short Fund | Class A
Risk/Return:
Trading Symbol	KLSAX
Kellner Long/Short Fund | Institutional Class
Risk/Return:
Trading Symbol	KLSIX