Name:	us-gaap_DebtInstrumentLineItems
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Data Type:	xbrli:stringItemType
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Date the credit facility terminates, in CCYY-MM-DD format.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of stock repurchase plan authorized.

No definition available.

Name:	us-gaap_StockRepurchaseProgramAuthorizedAmount1
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The ratio of consolidated EBITDA to consolidated interest charges for the most recently completed four fiscal quarters.

No definition available.

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The ratio of consolidated funded indebtedness as of termination date to consolidated EBITDA for the most recently completed four fiscal quarters.

No definition available.

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Number Of Debt Agreements

No definition available.

Name:	wdfc_NumberOfDebtAgreements
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Data Type:	xbrli:integerItemType
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