Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jan. 25, 2020	Jan. 26, 2019	Jan. 25, 2020	Jan. 26, 2019
Consolidated Statements of Operations
Revenue from Related Parties	$ 11,762	$ 13,586	$ 37,491	$ 37,981
Tax expense				$ 2,463

Amount of tax (expense) benefit on (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a discontinued operation.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration