Earnings per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 23, 2016	Jan. 24, 2015	Jan. 23, 2016	Jan. 24, 2015
Numerator (basic and diluted):
Net income attributable to La-Z-Boy Incorporated	$ 21,906	$ 17,948	$ 56,534	$ 50,558
Income allocated to participating securities, basic	(107)	(97)	(292)	(283)
Income allocated to participating securities, diluted	(107)	(97)	(292)	(283)
Net income available to common shareholders, basic	21,799	17,851	56,242	50,275
Net income available to common shareholders, diluted	$ 21,799	$ 17,851	$ 56,242	$ 50,275
Denominator
Basic weighted average common shares outstanding (in shares)	50,038	51,576	50,371	52,015
Add:
Contingent common shares	171	210	172	223
Stock option dilution	330	353	337	302
Diluted weighted average common shares outstanding (in shares)	50,539	52,139	50,880	52,540