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Segment Reporting - Net Sales and Long-lived Assets by Geographic Area (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 27, 2013 | Jan. 26, 2013 | Oct. 27, 2012 | Jul. 28, 2012 | Apr. 28, 2012 | Jan. 28, 2012 | Oct. 29, 2011 | Jul. 30, 2011 | Apr. 27, 2013 | Apr. 28, 2012 | Apr. 30, 2011
Net sales: |  |  |  |  |  |  |  |  |  |  |
United States |  |  |  |  |  |  |  |  | $ 430,242 | $ 405,479 | $ 368,979
Outside U.S. |  |  |  |  |  |  |  |  | 88,080 | 84,047 | 72,697
Net sales | 124,482 | 111,050 | 149,871 | 132,919 | 111,994 | 122,925 | 135,910 | 118,698 | 518,322 | 489,526 | 441,676
Long-lived assets: |  |  |  |  |  |  |  |  |  |  |
United States | 60,060 |  |  |  | 66,350 |  |  |  | 60,060 | 66,350 | 68,034
Outside U.S. | 1,565 |  |  |  | 2,046 |  |  |  | 1,565 | 2,046 | 1,832
Long-lived assets | $ 61,625 |  |  |  | $ 68,396 |  |  |  | $ 61,625 | $ 68,396 | $ 69,866

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- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 38 -Subparagraph b(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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