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Earnings per Share - Reconciliation (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Numerator (basic and diluted):
Net income attributable to La-Z-Boy Incorporated	$ 22,896	$ 20,833	$ 34,547	$ 34,639
Income allocated to participating securities, basic	(117)	(103)	(172)	(172)
Income allocated to participating securities, diluted	(117)	(103)	(172)	(172)
Net income available to common shareholders, basic	22,779	20,730	34,375	34,467
Net income available to common shareholders, diluted	$ 22,779	$ 20,730	$ 34,375	$ 34,467
Denominator
Basic weighted average common shares outstanding (in shares)	47,964	49,153	48,160	49,129
Add:
Contingent common shares (in shares)	96	100	99	100
Stock option dilution (in shares)	237	258	278	325
Diluted weighted average common shares outstanding (in shares)	48,297	49,511	48,537	49,554

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of contingently issuable shares. Contingently issuable shares are those shares that are issuable for little or no cash contingent on certain conditions being met.

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