Document And Entity Information	9 Months Ended
	Nov. 26, 2011	Dec. 29, 2011
Document And Entity Information [Abstract]
Trading Symbol	APOG
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Nov. 26, 2011
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q3
Entity Registrant Name	APOGEE ENTERPRISES, INC.
Entity Central Index Key	0000006845
Current Fiscal Year End Date	--03-03
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		28,025,067