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General Narrative (Details) - operating_segment		3 Months Ended	6 Months Ended
	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of reportable segments	3	2	2

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

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Balance Type:	na
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- References

No definition available.

+ Details

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