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Commitments and Contingencies - Narrative (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
May 02, 2020 USD ($) site | Apr. 27, 2019 USD ($) | Apr. 28, 2018 USD ($) | Mar. 02, 2020 USD ($)
Loss Contingencies [Line Items] |  |  |  |
Site contingency, number of sites subject to environmental investigation or remediation | site | 2 |  |  |
Accrual for environmental loss contingencies | $ 0.9 | $ 1.1 |  |
Environmental remediation expense | 0.5 | 0.1 | $ 0.3 |
Compensatory Damages |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Gain Contingency, Unrecorded Amount |  |  |  | $ 102.0
Punitive Damages |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Gain Contingency, Unrecorded Amount |  |  |  | $ 11.0
Other accrued expenses |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Accrual for environmental loss contingencies | $ 0.6 | $ 0.8 |  |

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