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Earnings per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 26, 2013 | Oct. 27, 2012 | Oct. 26, 2013 | Oct. 27, 2012
Numerator (basic and diluted) [Abstract] |  |  |  |
Net income attributable to La-Z-Boy Incorporated | $ 16,744 | $ 6,619 | $ 26,334 | $ 11,017
Income allocated to participating securities | (111) | (88) | (248) | (166)
Net income available to common shareholders | $ 16,633 | $ 6,531 | $ 26,086 | $ 10,851
Denominator [Abstract] |  |  |  |
Basic weighted average common shares outstanding (in shares) | 52,537,000 | 52,356,000 | 52,440,000 | 52,274,000
Add [Abstract] |  |  |  |
Contingent common shares | 320,000 | 366,000 | 305,000 | 366,000
Stock option dilution (in shares) | 404,000 | 546,000 | 431,000 | 529,000
Diluted weighted average common shares outstanding (in shares) | 53,261,000 | 53,268,000 | 53,176,000 | 53,169,000
Outstanding options to purchase shares (in shares) | 0 | 200,000 | 0 | 200,000
Weighted average exercise price (in dollars per share) |  | $ 20.74 |  | $ 20.74

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