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Derivative Financial Instruments (Tables) | 12 Months Ended
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Apr. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of Notional Amounts of Outstanding Derivative Positions | The foreign currency exchange contracts in aggregated notional amounts in place to exchange U.S. dollars at April 30, 2016 and May 2, 2015 were as follows:
| April 30, 2016 |  | May 2, 2015
| U.S. Dollars |  | Foreign Currency |  | U.S. Dollars |  | Foreign Currency
Foreign Currency Exchange Forward Contracts: |  |  |  |  |  |  |
U.S. Dollars/Australian Dollars | 7,216 |  |  | 10,027 |  |  | 1,487 |  |  | 1,918 |
U.S. Dollars/Canadian Dollars | 563 |  |  | 771 |  |  | 4,129 |  |  | 4,923 |
U.S. Dollars/British Pounds | 1,795 |  |  | 1,263 |  |  | 1,679 |  |  | 1,123 |
U.S. Dollars/Singapore Dollars | 261 |  |  | 356 |  |  | 1,176 |  |  | 1,601 |
U.S. Dollars/Euros | 147 |  |  | 132 |  |  | (229 | ) |  | 174 |
U.S. Dollars/Swiss Franc | — |  |  | — |  |  | 5,662 |  |  | 5,500 |
U.S. Dollars/Japanese Yen | — |  |  | — |  |  | 764 |  |  | 91,282 |

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- Definition Tabular disclosure of the notional amounts of outstanding derivative positions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959 + Details
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