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Investment in Unconsolidated Joint Venture - Summary of Equity Method Investment (Detail) - CLIH [Member] - USD ($) $ in Thousands	Oct. 29, 2017	Apr. 30, 2017
Schedule of Equity Method Investments [Line Items]
Total assets	$ 3,180	$ 2,258
Total liabilities	136	46
Total members' equity	$ 3,044	$ 2,212

X

- Definition

The amount of assets reported by an equity method investment of the entity.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
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- Definition

Amount of equity, including noncontrolling interest, reported by an equity method investment of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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