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Nature of Business and Summary of Significant Accounting Policies - Equity Method Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2022	May 01, 2021	May 02, 2020
Balance sheet data:
Current assets	$ 317,570	$ 265,003
Current liabilities	213,694	146,620
Non-current liabilities	35,618	34,990
Income statement data:
Net income	592	10,926	$ 491
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Balance sheet data:
Current assets	6,672	7,534	10,593
Non-current assets	4,491	4,637	4,266
Current liabilities	13,938	2,807	2,755
Non-current liabilities	1,738	1,793	4,086
Income statement data:
Net income	$ (11,928)	$ (13,436)	$ (1,383)

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