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Reclassifications	3 Months Ended
	Jul. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Reclassifications	I. Reclassifications Certain 2016 amounts have been reclassified to conform to the 2017 presentation in the consolidated statements of cash flows. Such reclassifications had no impact on net earnings.

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- References

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- Definition

The entire disclosure for classifying current financial statements, which may be different from classifications in the prior year's financial statements. Disclose any material changes in classification including an explanation of the reason for the change and the areas impacted.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-URI http://asc.fasb.org/topic&trid=2122149

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