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Equity Investment - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jan. 31, 2019	Jan. 31, 2019
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Interest in Joint Venture		$ 3,500
TH2
Schedule of Equity Method Investments [Line Items]
Losses from investment	$ 2,216	3,699
Payments to Acquire Interest in Joint Venture	$ 3,500	$ 3,500

X

- Definition

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group.

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