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Subsidiary Guarantors of the Public Bonds (Additional Information) (Details)	Sep. 10, 2016
Condensed Financial Information of Parent Company [Abstract]
Ownership percentage of subsidiaries by parent	100.00%

X

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Condensed Financial Information of Parent Company [Abstract]

+ References

No definition available.

+ Details

Name:	www_CondensedFinancialInformationofParentCompanyAbstract
Namespace Prefix:	www_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration