Document and Entity Information - shares	6 Months Ended
	Oct. 23, 2021	Nov. 09, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Oct. 23, 2021
Document Transition Report	false
Entity File Number	1-9656
Entity Registrant Name	LA-Z-BOY INCORPORATED
Entity Incorporation, State or Country Code	MI
Entity Tax Identification Number	38-0751137
Entity Address, Address Line One	One La-Z-Boy Drive,
Entity Address, City or Town	Monroe,
Entity Address, State or Province	MI
Entity Address, Postal Zip Code	48162-5138
City Area Code	734
Local Phone Number	242-144
Title of 12(b) Security	Common Stock, $1.00 Par Value
Trading Symbol	LZB
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		43,905,858
Entity Central Index Key	0000057131
Current Fiscal Year End Date	--04-30
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Amendment Flag	false