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Earnings per Share - Reconciliation (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jul. 29, 2017	Jul. 30, 2016
Numerator (basic and diluted):
Net income attributable to La-Z-Boy Incorporated	$ 11,651	$ 13,806
Income allocated to participating securities, basic	(57)	(69)
Income allocated to participating securities, diluted	(57)	(69)
Net income available to common shareholders, basic	11,594	13,737
Net income available to common shareholders, diluted	$ 11,594	$ 13,737
Denominator
Basic weighted average common shares outstanding (in shares)	48,357	49,105
Add:
Contingent common shares (in shares)	175	131
Stock option dilution (in shares)	314	358
Diluted weighted average common shares outstanding (in shares)	48,846	49,594

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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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