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Selected Financial Statement Data - Other (Expense) Income (Details) - USD ($) $ in Thousands | 12 Months Ended
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May 02, 2020 | Apr. 27, 2019 | Apr. 28, 2018
Selected Financial Statement Data [Abstract] |  |  |
Foreign currency transaction gains (losses) | $ 207 | $ (262) | $ 29
Equity in losses of affiliates | (741) | (844) | (481)
Other Nonoperating Expense | (7) |  | (85)
Other Nonoperating Income |  | 19 |
Other (expense) income, net | $ (541) | $ (1,087) | $ (537)

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- Definition Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109240200&loc=d3e30700-110894 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109240200&loc=d3e30690-110894 + Details
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