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Investment in Unconsolidated Joint Venture - Summary of Equity Method Investment (Detail) - CLIH [Member] - USD ($)
$ in Thousands
Apr. 30, 2017
May 01, 2016
Schedule of Equity Method Investments [Line Items]    
total assets $ 2,258 $ 0
total liabilities 46 0
total members' equity $ 2,212 $ 0