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Receivables (Detail) - USD ($)
$ in Thousands
Apr. 28, 2018
Apr. 29, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Trade accounts $ 19,446 $ 16,189
Credit/debit card receivables 22,564 25,136
eBook settlement receivable (see Note 21) 452 2,478
Other receivables 22,100 23,491
Total receivables, net $ 64,562 $ 67,294