Property,Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Aug. 31, 2016	Aug. 31, 2015
Property Plant and Equipment Useful Life and Values [Abstract]
Refinery equipment	$ 431,744	$ 378,877
Marketing (i.e. retail outlets)	153,654	141,726
Transportation	14,628	12,951
Construction-in-progress	74,286	65,970
Property, plant and equipment, gross	674,312	599,524
Less: Accumulated depreciation	270,681	251,767
Property, plant and equipment, net	$ 403,631	$ 347,757

Property Plant and Equipment Useful Life and Values [Abstract]

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- Definition

Transportation equipment gross.

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No definition available.

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

+ References

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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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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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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