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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (240,671)	$ (209,813)	$ (687,535)	$ (426,841)
Other comprehensive loss, net of tax:
Change in unrealized gain on available-for-sale securities, net of tax	487	478	956	1,331
Comprehensive loss	$ (240,184)	$ (209,335)	$ (686,579)	$ (425,510)

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- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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