v3.3.1.900
Document and Entity Information - shares
9 Months Ended
Jan. 23, 2016
Feb. 10, 2016
Document and Entity Information [Abstract]    
Entity Registrant Name LA-Z-BOY INC  
Entity Central Index Key 0000057131  
Current Fiscal Year End Date --04-30  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   49,892,109
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q3  
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jan. 23, 2016