XML 12 R1.htm IDEA: XBRL DOCUMENT v3.6.0.2
Document and Entity Information - shares
9 Months Ended
Nov. 26, 2016
Jan. 04, 2017
Document and Entity Information [Abstract]    
Entity Registrant Name APOGEE ENTERPRISES, INC.  
Entity Central Index Key 0000006845  
Document Type 10-Q  
Document Period End Date Nov. 26, 2016  
Amendment Flag false  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q3  
Current Fiscal Year End Date --03-04  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   28,646,308