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Segment Disclosure - Net Sales and Long-lived Assets by Geographic Area (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Oct. 31, 2015 | Nov. 01, 2014 | Oct. 31, 2015 | Nov. 01, 2014 | May. 02, 2015
Net sales: |  |  |  |  |
Net sales | $ 157,668 | $ 173,115 | $ 307,889 | $ 339,733 |
Long-lived assets: |  |  |  |  |
Long-lived assets | 74,744 |  | 74,744 |  | $ 72,844
United States |  |  |  |  |
Net sales: |  |  |  |  |
Sales | 126,211 | 138,211 | 246,078 | 280,041 |
Long-lived assets: |  |  |  |  |
Long-lived assets | 69,779 |  | 69,779 |  | 67,882
Outside U.S. |  |  |  |  |
Net sales: |  |  |  |  |
Sales | 31,457 | $ 34,904 | 61,811 | $ 59,692 |
Long-lived assets: |  |  |  |  |
Long-lived assets | $ 4,965 |  | $ 4,965 |  | $ 4,962

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