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Selected Financial Statement Data - Other (Expense) Income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Apr. 27, 2019 | Apr. 28, 2018 | Apr. 29, 2017
Selected Financial Statement Data [Abstract] |  |  |
Foreign currency transaction (losses) gains | $ (262) | $ 29 | $ (331)
Equity in losses of affiliates | (844) | (481) | (136)
Other Nonoperating Income | 19 |  | 113
Other Nonoperating Expense |  | (85) |
Other (expense) income, net | $ (1,087) | $ (537) | $ (354)

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