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Subsequent Events - (Details) (USD $) | 12 Months Ended | 0 Months Ended
--- | --- | ---
Apr. 27, 2013 | Apr. 28, 2012 | Apr. 30, 2011 | May 23, 2013 Subsequent Event
Subsequent Event [Line Items] |  |  |  |
Cash dividend declared (usd per share) | $ 0.73 | $ 0.62 | $ 0.60 | $ 0.12

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 + Details
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- Details
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