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Commitments and Contingencies - Litigation (Details) - USD ($) $ in Thousands	Apr. 27, 2019	Apr. 28, 2018
Loss Contingencies [Line Items]
Provision for Loss on Contracts	$ 2,353	$ 30
Unasserted Claim [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss		$ 1,904
Collectibility of Receivables [Member]
Loss Contingencies [Line Items]
Loss contingency accrual	1,969
Live Events
Loss Contingencies [Line Items]
Provision for Loss on Contracts	$ 1,516

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Amount of loss contingency liability.

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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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Cumulative provision for contract losses not offset against related costs accumulated on the balance sheet.

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