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Receivables (Detail) - USD ($)
$ in Thousands
Apr. 27, 2019
Apr. 28, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Trade accounts $ 17,060 $ 19,446
Credit/debit card receivables 21,543 22,564
Other receivables 22,644 22,542
Total receivables, net $ 61,247 $ 64,562