Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Property and Equipment, Net Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2021	Jan. 31, 2020	Jul. 31, 2020
Property, Plant and Equipment [Line Items]
Property and Equipment	$ 2,856,185		$ 2,856,185		$ 2,566,260
Less: Accumulated depreciation and amortization	(680,839)		(680,839)		(624,541)
Property, Plant and Equipment, Net	2,175,346		2,175,346		1,941,719
Depreciation	29,700	$ 22,000	56,800	$ 42,500
Land
Property, Plant and Equipment [Line Items]
Property and Equipment	1,378,632		1,378,632		1,235,315
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property and Equipment	1,040,993		1,040,993		932,976
Transportation and other equipment
Property, Plant and Equipment [Line Items]
Property and Equipment	301,333		301,333		274,422
Office furniture and equipment
Property, Plant and Equipment [Line Items]
Property and Equipment	75,184		75,184		70,926
Software
Property, Plant and Equipment [Line Items]
Property and Equipment	$ 60,043		$ 60,043		$ 52,621