Document and Entity Information	9 Months Ended
	Sep. 30, 2013
Document - Document and Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q3
Entity Registrant Name	Atlas America Public #15-2005 (A) L.P.
Entity Central Index Key	0001335236
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding	5,227.40