Description Of Business And Significant Accounting Policies [Line Items]

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- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5074-111524

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-Publisher FASB
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-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 958
-SubTopic 225
-Section 45
-Paragraph 11
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51659069&loc=d3e92212-112881

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Impairment
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-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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-Publisher FASB
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-Section 50
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-Publisher FASB
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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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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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- Definition

The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 3
-Subparagraph a
-Article 5

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Description Of Business And Significant Accounting Policies (Narrative) (Details) $ in Thousands	12 Months Ended
	Aug. 31, 2016 USD ($) segment	Aug. 31, 2015 USD ($)	Aug. 31, 2014 USD ($)
Description Of Business And Significant Accounting Policies [Line Items]
Accounts receivable, current	$ 80,610	$ 74,063
Allowance for doubtful accounts	$ 8,300	9,700
Number of reportable segments \| segment	2
Impairments	$ 0	$ 0	$ 0
Leased Barriers [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Useful life	12 years
Maximum [Member] \| Leased Barrier Transfer Machines [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Useful life	10 years
Maximum [Member] \| Building [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Useful life	30 years
Maximum [Member] \| Equipment [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Useful life	7 years
Maximum [Member] \| Other [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Useful life	20 years
Minimum [Member] \| Leased Barrier Transfer Machines [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Useful life	8 years
Minimum [Member] \| Building [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Useful life	15 years
Minimum [Member] \| Equipment [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Useful life	3 years
Minimum [Member] \| Other [Member]
Description Of Business And Significant Accounting Policies [Line Items]
Useful life	2 years