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		9 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019	Jul. 31, 2019
Property, Plant and Equipment [Line Items]
Property and Equipment	$ 2,437,332		$ 2,437,332		$ 1,965,348
Less: Accumulated depreciation and amortization	(599,035)		(599,035)		(537,622)
Property, Plant and Equipment, Net	1,838,297		1,838,297		1,427,726
Depreciation	24,500	$ 18,600	67,000	$ 55,300
Land
Property, Plant and Equipment [Line Items]
Property and Equipment	1,149,026		1,149,026		939,817
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property and Equipment	902,420		902,420		686,615
Transportation and other equipment
Property, Plant and Equipment [Line Items]
Property and Equipment	268,780		268,780		236,282
Office furniture and equipment
Property, Plant and Equipment [Line Items]
Property and Equipment	68,074		68,074		63,200
Software
Property, Plant and Equipment [Line Items]
Property and Equipment	$ 49,032		$ 49,032		$ 39,434