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Basis of Presentation (Details) $ in Millions	3 Months Ended
	Oct. 31, 2018 USD ($)
Reclassification for Costs to Fulfill Contract and Product Development Spending [Member]
Prior Period Adjustments [Abstract]
Prior period reclassification adjustment	$ 4.5
Reclassification for Amortization Expense Related to Costs to Fulfill Contract [Member]
Prior Period Adjustments [Abstract]
Prior period reclassification adjustment	$ 1.2

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- References

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- Definition

The amount of a reclassification adjustment made to prior period financial statement amounts.

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No definition available.

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