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Goodwill And Other Intangible Assets (Summary Of Changes In Carrying Amounts Of Definite-Lived Intangible Assets By Segment) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2014	Aug. 31, 2013	Aug. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Beginning balance	$ 24,292	$ 27,685
Amortization expense	(2,617)	(2,260)	(2,133)
Customer list	1,819
Impairment of intangible assets		(1,077)
Translation adjustments	177	(56)
Ending balance	23,671	24,292	27,685
Americas [Member]
Finite-Lived Intangible Assets [Line Items]
Beginning balance	21,536	24,714
Amortization expense	(2,208)	(2,101)
Impairment of intangible assets		(1,077)
Ending balance	19,328	21,536
EMEA [Member]
Finite-Lived Intangible Assets [Line Items]
Beginning balance	2,756	2,971
Amortization expense	(409)	(159)
Customer list	1,819
Translation adjustments	177	(56)
Ending balance	$ 4,343	$ 2,756

X

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

+ Details

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Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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X

- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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X

- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275

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X

- Definition

The increase (decrease) to the recorded value of finite lived intangible assets for foreign currency translation adjustments.

+ References

No definition available.

+ Details

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Namespace Prefix:	wdfc_
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