Document and Entity Information - shares	6 Months Ended
	Oct. 24, 2015	Nov. 10, 2015
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		50,192,532
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Oct. 24, 2015