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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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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 210.5-02.19,20)

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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-Publisher SEC

-Name Regulation S-X (SX)

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-Section 02

-Paragraph 22

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The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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No definition available.

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Long-Term Debt - Debt (Detail) (USD $) In Thousands, unless otherwise specified	Apr. 26, 2014	Apr. 27, 2013	Apr. 26, 2014 Senior Notes 5.17% [Member]	Apr. 27, 2013 Senior Notes 5.17% [Member]	Mar. 31, 2008 Senior Notes 5.17% [Member]	Apr. 26, 2014 Senior Notes 5.75% [Member]	Apr. 27, 2013 Senior Notes 5.75% [Member]	Mar. 31, 2008 Senior Notes 5.75% [Member]	Apr. 26, 2014 Senior Notes 2.95% [Member]	Apr. 27, 2013 Senior Notes 2.95% [Member]	Dec. 31, 2011 Senior Notes 2.95% [Member]	Apr. 26, 2014 Senior Notes 3.59% [Member]	Apr. 27, 2013 Senior Notes 3.59% [Member]	Dec. 31, 2011 Senior Notes 3.59% [Member]	Apr. 26, 2014 Senior Notes 3.74% [Member]	Apr. 27, 2013 Senior Notes 3.74% [Member]	Dec. 31, 2011 Senior Notes 3.74% [Member]
Debt Instrument [Line Items]
Fixed rate senior notes due fiscal 2015 to 2024			$ 250,000	$ 250,000	$ 250,000	$ 150,000	$ 150,000	$ 150,000	$ 60,000	$ 60,000	$ 60,000	$ 165,000	$ 165,000	$ 165,000	$ 100,000	$ 100,000	$ 100,000
Total debt	725,000	725,000
Less: current debt obligations
Long-term debt	$ 725,000	$ 725,000