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CONSOLIDATED BALANCE SHEET (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified | Apr. 25, 2015 | Apr. 26, 2014
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Current assets |  |
Receivables, allowance (in dollars) | $ 4,622 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent | $ 12,368 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Shareholders' equity |  |
Preferred shares, authorized (in shares) | 5,000 us-gaap_PreferredStockSharesAuthorized | 5,000 us-gaap_PreferredStockSharesAuthorized
Preferred shares, issued (in shares) | 0 us-gaap_PreferredStockSharesIssued | 0 us-gaap_PreferredStockSharesIssued
Common shares, par value (in dollars per share) | $ 1 us-gaap_CommonStockParOrStatedValuePerShare | $ 1 us-gaap_CommonStockParOrStatedValuePerShare
Common shares, authorized (in shares) | 150,000 us-gaap_CommonStockSharesAuthorized | 150,000 us-gaap_CommonStockSharesAuthorized
Common shares, outstanding (in shares) | 50,747 us-gaap_CommonStockSharesOutstanding | 51,981 us-gaap_CommonStockSharesOutstanding

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- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Face amount or stated value per share of common stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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