Amount of expense for allocation of cost of tangible asset over its useful life directly used in production of good and rendering of service.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(b)(2))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

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.

+ References

No definition available.

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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Basis Of Presentation And Summary Of Significant Accounting Policies (Property And Equipment) (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2021	Aug. 31, 2020	Aug. 31, 2019
Property Plant And Equipment [Line Items]
Depreciation	$ 5.6	$ 5.5	$ 4.9
Cost of goods sold, depreciation	$ 1.2	$ 1.4	$ 1.1
Minimum [Member]
Property Plant And Equipment [Line Items]
Estimated useful life	3 years
Minimum [Member] \| Buildings And Improvements [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	10 years
Minimum [Member] \| Machinery And Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	3 years
Minimum [Member] \| Vehicles [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	3 years
Minimum [Member] \| Furniture And Fixtures [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	3 years
Minimum [Member] \| R&D Lab Equipment And Office Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	3 years
Minimum [Member] \| Software and Computer Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	3 years
Maximum [Member]
Property Plant And Equipment [Line Items]
Estimated useful life	5 years
Maximum [Member] \| Buildings And Improvements [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	40 years
Maximum [Member] \| Machinery And Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	15 years
Maximum [Member] \| Vehicles [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	5 years
Maximum [Member] \| Furniture And Fixtures [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	10 years
Maximum [Member] \| R&D Lab Equipment And Office Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	7 years
Maximum [Member] \| Software and Computer Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	5 years